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1024 CUDA cores on a card
The "Top Secret" GTX 590 turns out to be both better and worse than the Radeon HD 6990 4GB depending on some vary particular use cases. In realm of $700 graphics cards, this is definitely something you want to pay attention to. But I am getting ahead of myself; let's first dive into the design on the GTX 590 and see what's under the hood.The High-End Battle Commences
Just a couple of weeks ago AMD released the Radeon HD 6990 4GB card, the first high-end dual-GPU graphics card we have seen released in quite a while it seems. Before that, the Radeon HD 5970 had been sitting on the throne as the fastest single card for even longer - the GeForce GTX 295 was NVIDIA's last attempt at the crown. Even before we got our hands on the HD 6990 though, we were told by various NVIDIA personnel to "wait what we have in store." Well, we have done so and today we are here to review and discuss NVIDIA's entry into the dual-GPU realm for 2011, the GeForce GTX 590 3GB.
Note: If you would like to check out our video comparison between the GeForce GTX 590 and the Radeon HD 6990 before moving on, please do!
From the HD 5770 HAWK to Now
MSI hits the scene with their own version of the AMD HD 6950. This features the Twin Frozr II cooling solution and has a price point slightly above where most reference HD 6950s sit. When combined with MSI's Afterburner software, this card becomes an interesting tool in a gamer's arsenal. We find out how it runs when combined with the Catalyst 11.4 Preview Driver, which delivers some significant improvements in performance for the Cayman family of chips.Last year I reviewed the MSI HD 5770 HAWK video card, and I came away impressed by the engineering that MSI brought to the table. The card was quiet, it was efficient, it didn’t build up any significant levels of heat, and it was pretty affordable as compared to a bone stock HD 5770 based on the reference design. The board could also overclock. It was a budget enthusiast board that wouldn’t empty the pocket, but still give a lot of DX11 bang for the buck.
Then on the other hand we had the MSI HD 5870 Lightning. This was a card that had a lot of promise. This particular card had a custom PCB design with high end power circuitry, quality components, and the TwinFrozr fan design. All of this came to naught. The board would not overclock any further than the reference HD 5870 that we had seen for some months before, and in fact the board appeared to pull a little bit more power at the same speeds as a reference board. This was almost the exact polar opposite of the HD 5770 HAWK.
The product I am looking at today is an interesting hybrid from MSI. MSI has taken the stock HD 6950 reference PCB, populated it with slightly higher rated components (though not up to their “Military Class” standards), and put on the Twin Frozr II cooling solution. This is more in line with the reference version of the HD 6950, but the addition of better cooling and advanced fan profiles gives it a boost above the reference, without going into the stratified air of producing another “Lightning” type of product. This has allowed MSI to get a differentiated product out in fairly short order, and still give consumers something extra to potentially make their buying decision on.
Introduction and Features
If you are in the market for a solid SFX form factor power supply for a Micro ATX Media Center or Home Theater PC that will support a high-end graphic card, the SilverStone ST45SF deserves a very close look!
Introduction
SilverStone has a well earned reputation among PC enthusiasts for providing a full line of high quality enclosures, power supplies, cooling components, and accessories. SilverStone recently added a new 450W power supply in the SFX form factor to their PSU line up. The SFX form factor is frequently found in Micro ATX Media Center PCs and Home Theater PCs.
SilverStone SFX ST45SF PSU
Here is what SilverStone has to say about the ST45SF: "After successfully revolutionizing both HTPC and SFF market segments with innovative chassis designs, SilverStone engineers continue their push for advancement in these categories by releasing a true upgrade-worthy small form factor power supply, the ST45SF. This SFX unit is compatible not only with chassis that use SFX power supplies but also in smaller ATX chassis with the included adapter bracket. Despite its small size, the ST45SF has features that one would expect from an elite ATX power supply such as 80 PLUS Bronze level of efficiency, temperature controlled fan, 50°C temperature rating, and reliability for 24/7 operation. Enthusiasts oriented features are also present with single +12V rail and 8pin/6pin PCI-E connectors to fully support multi-GPU systems. For SFF users and SilverStone, the ST45SF is more than just an upgrade, it is an important milestone for the DIY desktop computer."
SilverStone ST45SF Main Features:
• Supports standard SFX form factor and ATX (via included bracket)
• 450W continuous power output at 50°C and rated for 24/7 operation
• 80 PLUS Bronze level efficiency (82%~85% efficiency at 20%-100% load)
• Class-leading single +12V rail with 36A capacity
• Silent running 80mm fan (18dBA minimum)
• Single PCI-E 8-pin and dual PCI-E 6-pin connectors
• Active PFC
What all that extra power gets you
Just a couple of weeks back AMD released the new Radeon HD 6990 4GB graphics card to world and it was easily crowned the king of the GPU world. With performance that beat out AMD's own Radeon HD 5970 and walked past the single GPU based GeForce GTX 580 1.5GB from NVIDIA, the HD 6990 offered the most performance in the smallest space you could buy - and for a hefty $699 MSRP.The Leftovers
Just a couple of weeks back AMD released the new Radeon HD 6990 4GB graphics card to world and it was easily crowned the king of the GPU world. With performance that beat out AMD's own Radeon HD 5970 and walked past the single GPU based GeForce GTX 580 1.5GB from NVIDIA, the HD 6990 offered the most performance in the smallest space you could buy - and for a hefty $699 MSRP. (Note that they are selling for more than that as of today...)
One of the interesting features of the card was a unique hardware switch on the top of the card that is used to switch between standard clock rates of 830 MHz and a 375 watt power rating and a higher voltage, higher clock rate along with the ability to breach the 375 watt limit set by the PCI Express standard.
Along with the move from 830 MHz core clock to a 880 MHz core clock (which by itself wouldn't really be notable), the HD 6990 cards move from a voltage of 1.175v stock to a slightly improved 1.2v for additional overclocking headroom. In conjunction with this, the PowerTune implementation (which uses hardware to limit maximum power consumption levels) gets tweaked to allow for more power consumption. This is good news for overclockers again.
Here is my quote from the original HD 6990 story:
Unfortunately, because of some time constraints, we didn't get to play around with this overclocked setting originally but today, we rectify that situation.

In our story today you will see a collection of benchmarks, all run at the 2560x1600 resolution that actually stresses the HD 6990, comparing the default 830/1200 speeds to the automatically overclocked settings of 880/1250 that result from flipping that overclocking switch. Though I realize that not many users have 30-in displays with 2560x1600 screens, the higher pixel count should also represent performance scaling and changes on multi-display Eyefinity configurations.
After those tests, you will see our experiences with additional overclocking attempts through AMD's Overdrive software in the Catalyst Control Center.
Our testing configuration was the same as all of our recent GPU articles:
- Testing Configuration
- ASUS P6X58D Premium Motherboard
- Intel Core i7-965 @ 3.33 GHz Processor
- 3 x 2GB Corsair DDR3-1333 MHz Memory
- Western Digital VelociRaptor 600GB HDD
- Corsair Professional Series 1200w PSU

The Relative Lack of SLI on AMD
Several years back we were introduced to the Lucid Hydra technology, and it seemed like an impressive multi-GPU implementation which could leverage the power of different video card combinations to improve performance over that of one card. Quite a few years have passed, and we have a handful of motherboards now supporting this technology. We take a look at the technology now implemented on the AMD side, and how it performs when using both AMD and NVIDIA based video cards.The first we heard of Lucid was a few years back when they showcased working silicon running multiple video cards together. Whether these were NVIDIA or ATI/AMD cards, Lucid had a way of allowing them to render a scene in a unique way, then composite the results to create a near seamless experience. It took some time before the first products hit the streets, and there is also quite a bit of controversy behind the actual implementation.
The primary rendering mode for both SLI and CrossFire is alternate frame rendering. Basically this allows each video card to process alternating frames, which theoretically can double performance. We have never seen true linear scaling in such situations, but it is not unheard of to reach 85% scaling or slightly more with the latest video cards on fast systems. Lucid does things a bit differently.
Block diagram of the Lucid Hydra chip and how it connects to the system.
Another Fermi debuts
It is the inevitable march of technology - we see a new GPU released at the high-end of the price spectrum and some subset of it will find its way to the low-end. The slow drizzle of cards in this series started with the 580 and 570, based on the same Fermi architecture as the GTX 400 cards (with some improvements in efficiency), continued with the GTX 560 Ti in January and with the GTX 550 Ti that we are seeing today.Introduction
It is the inevitable march of technology - we see a new GPU released at the high-end of the price spectrum and some subset of it will find its way to the low-end. It could be merely days apart, or it could be months, as we see here with the GTX 580 release coming way back in November of 2010. The slow drizzle of cards in this series started with the 580 and 570, based on the same Fermi architecture as the GTX 400 cards (with some improvements in efficiency), continued with the GTX 560 Ti in January and with the GTX 550 Ti that we are seeing today.
But does this new low cost option from NVIDIA stack up well against competition from AMD or from their own previous designs? Let's first find out the basic specifications of the GPU and dive into the benchmarks.
The GeForce GTX 550 Ti GPU
The GeForce GTX 550 Ti (previously dubbed GF116) continues with the trend NVIDIA has perfected of taking large GPUs and shrinking them down to fit into different price segments, in this case the ~$150 mark. While the GTX 580 is a beast of silicon with 512 shader cores and a 384-bit memory bus to keep it fed, the GTX 560 Ti was shrunk to 384 cores and a more manageable 256-bit memory bus.
The 116 watt power consumption of the GTX 550 Ti comes in at 10 watts higher than what the reference GTS 450 cards were rated at.
Introduction and Specifications
The processor inside the Toshiba Satellite C655 is just one reason why this laptop is interesting. The other is the laptop’s size. Yes, laptops with 15.6” displays are the most common sold today, but Intel has made sure to keep Atom processors out of them. The company has been understandably guarded about the idea of placing such an inexpensive part into the most popular category of laptops.
Netbooks have been solid Intel territory since their rise to popularity in 2008. Intel won the category virtually by default; AMD had no alternative to offer. Even AMD’s most power efficient models have never been capable of providing battery life comparable to Atom. The debut of the Nile platform late last year finally gave AMD the ability to compete in the ultraportable market, but that was a long way from the power efficiency Atom could provide. AMD needed a new architecture, one made with power efficiency as a primary goal.
Now, after much anticipation and some delays, AMD has delivered. The new Fusion processors, which combine the CPU and GPU into a single processor architecture known as an APU, are filtering into production laptops. With them comes opportunity. AMD is rolling out low-end, power efficient components first, which means Atom finally has a competitor. Intel has done very little to update the performance and functionality of Atom since its introduction because there was no reason to make changes. With no competition from AMD, and the margins on Atom products small, Intel has had little incentive to substantially revise or improve the processor. AMD’s E-240 APU may finally spark a battle that has been absent for far too long.
The processor inside the Toshiba Satellite C655 is just one reason why this laptop is interesting. The other is the laptop’s size. Yes, laptops with 15.6” displays are the most common sold today, but Intel has made sure to keep Atom processors out of them. The company has been understandably guarded about the idea of placing such an inexpensive part into the most popular category of laptops. If consumers suddenly decided that an Atom was really all they needed (which I think is unlikely, but a possibility) Intel’s entire mobile processor business could be throw into a blender.
The Satellite 655 is simultaneously one of the least and most unique laptops on the market. Let’s see what (besides the APU) makes it tick.

Nothing here is surprising besides the processor and the price. While it is not unusual for 15.6” laptops to sell for $349, laptops that sell below $450 are usually stripped models, clearance products, or loss-leaders that stores hope can be attached to profit-fat extended warranties and peripherals. The Satellite C655 has an MSRP of $349, however – it would not be surprising to see this laptop sell for $325 or even $300 after a few months on the market.
Inexpensive pricing doesn’t excuse poor quality, however; the Toshiba Satellite C655 needs to be pleasant to use even if it is inexpensive. This is a place where many netbooks stumble, and even 15.6” bargain laptops sometimes have hidden flaws. Can the Satellite C655 cut costs without cutting into your experience?
Introduction and Features
After Apple released their new line of Macbook Pros on Feb. 24, many users thought Apple would do a basic performance bump of the system's hardware and send it out the door to consumers. They predictably included Intel's latest Sandy Bridge processors, which integrates an HD Graphics 3000 processor with the CPU, but they also became the first company to adopt Intel's new Thunderbolt technology. The combination of Sandy Bridge and Thunderbolt is just the tip of the iceberg for this year's Macbook Pro lineup. We ordered one of their entry level 13" models to see firsthand how these new capabilities boost system performance and usability.
Apple brings Sandy Bridge, Thunderbolt technologies to MacBook Pros
Courtesy of Apple
After Apple released their new line of Macbook Pros on Feb. 24, many users thought Apple would do a basic performance bump of the system's hardware and send it out the door to consumers. They predictably included Intel's latest Sandy Bridge processors, which integrates an HD Graphics 3000 processor with the CPU, but they also became the first company to adopt Intel's new Thunderbolt technology. The combination of Sandy Bridge and Thunderbolt is just the tip of the iceberg for this year's Macbook Pro lineup. We ordered one of their entry level 13" models to see firsthand how these new capabilities boost system performance and usability.
Courtesy of Apple
The 13" model we configured for our review includes a 13.3" glossy widescreen LED display that natively runs at 1280x800. We also kept everything else standard like the 2.3GHz dual-core Intel Core i5 processor with 3MB shared L3 cache and 4GBs of DDR3-1333 system memory, but we upgraded the hard drive to a 500GB, 5,400 RPM SATA model. We also chose to stick with the Intel HD Graphics 3000 with 384MB of DDR3 SDRAM shared memory to keep the cost down below $1,300.
Courtesy of Apple
As of Mar. 5, Apple had five basic Macbook Pro configurations that consumers could purchase from their website. Their entry-level 13" model starts at $1,199 while the 15" model starts at $1,799 because of the included Intel Core i7 2GHz quad-core processor and AMD Radeon HD 6490M 256B graphics card. The high-end 17" model only comes in one configuration that starts at $2,499, but it uses an Intel Core i7 2.4GHz quad-core CPU and an AMD Radeon HD 6750M with 1GB of DDR5 memory. Overall, these five configurations help users with a wide range of needs and professional backgrounds.
Apple Macbook Pro 13" Features
Up to 2x Faster Processors
With all-new quad-core and dual-core processors, the new MacBook Pro isn’t just faster. It’s phenomenal.
Up to 3x Faster Graphics
The 15- and 17-inch MacBook Pro feature discrete AMD Radeon graphics for stunning visuals.
Ultrafast Thunderbolt I/O
New input/output technology lets you connect high-speed peripherals and high-resolution displays.
FaceTime HD Camera
Now when you make video calls with FaceTime, your friends will see you three times more clearly than before.
Multi-Touch Trackpad
The spacious Multi-Touch trackpad lets you use gestures to control and interact with what’s on your screen.
Long-Lasting Battery
Even with faster processors and graphics, the new MacBook Pro lasts an amazing 7 hours on a single charge.
Antilles Architecture and Design
The AMD Radeon HD 6990 4GB card has been known by the media and even gamers since the first announcements from the Cayman launch last year but finally today we are able to discuss the technology behind it and the gaming performance it will provide users willing to shell out the $700 it will take to acquire. Stop in and see if your mortgage is worth this graphics card!
Graphics card that are this well endowed don't come along very often; the last was the Radeon HD 5970 from AMD back in November of 2009. In a world where power efficiency is touted as a key feature it has become almost a stigma to have an add-in card in your system that might pull 350-400 watts of power. Considering we were just writing about a complete AMD Fusion platform that used 34 watts IN TOTAL under load, it is an easy task to put killer gaming products like the HD 6990 in an unfair and unreasonable light.
But we aren't those people. Do most people need a $700, 400 watt graphics card? Nope. Do they want it though? Yup. And we are here to show it to you.
A new take on the dual-GPU design
Both AMD and NVIDIA have written this story before: take one of your top level GPUs and double them up on a single PCB or card design to plug into a single PCI Express slot and get maximum performance. CrossFire (or SLI) in a single slot - lots to like about that.
The current GPU lineup paints an interesting picture with the Fermi-based GTX 500 series from NVIDIA and the oddly segregated AMD HD 6800 and HD 6900 series of cards. Cayman, the redesigned architecture AMD released as the HD 6970 and HD 6950, brings a lot of changes to the Evergreen design used in previous cards. It has done fairly well in the market though it didn't improve the landscape for AMD discrete graphics as much as many had thought it would and NVIDIA's graphics chips have remained very relevant.
With the rumors swirling about a new dual-GPU option from AMD there was some discussion on whether it would be an HD 6800 / Evergreen based design or an HD 6900 / Cayman contraption. Let's just get that mystery out of the way:
The memory architecture runs a bit slower as well at 5.0 Gbps (versus the 5.5 Gbps on the HD 6970) but we are still getting a full 2GB per GPU for a grand-spanking-total of 4GB on this single card. Load power on the board is rated at "<375 watts" and just barely makes the budget for PCI Express based solutions with the provided dual 8-pin power connectors.
Introduction and Honeycomb Overview
Early this year Google teased the next version of their mobile device operating system, Android 3.0 (codenamed Honeycomb). Now we finally have our hands on the first Honeycomb device, the Motorola Xoom. Read on to see how much the face of Android has changed.
While the Motorola Xoom may not be the first tablet that has been released with Android, it marks a major shift in the paradigm of mobile computing. Tracing back the history of Android, Google seems to release new software platforms with a specific hardware partner. While the original G1 phone was developed by HTC, Google decided to launch Android 2.0 (Eclair, known as 2.1 on other phones) with Motorola and their original Droid product. The success of the Motorola Droid is a hallmark moment for Motorola, who had been slowly dying after the massive success of their RAZR phone years ago.
With 2.2 and 2.3, Google decided to partner with hardware partners to develop what they considered the ideal platform. From this we got the HTC built Nexus One, and Samsung built Nexus S. Both of which have been heralded as phenomenal devices.
This brings us to Google’s newest and most ambitious mobile operating system yet, Android 3.0 (Honeycomb). Once again, Google has partnered here with great hardware companies, giving us a Motorola built device, powered by the NVIDIA Tegra 2 ARM SoC.
One of the things that veteran Android users will notice right away when looking at a Xoom in action is the lack of the standard Home, Menu, Back, and Search buttons of Android devices of the past. This is actually due to a Google decision, and not one on Motorola’s part. In Honeycomb, the way you navigate through the operating system has been reworked, and these buttons integrated into the UI, instead of the device itself. This allows Google greater flexibility in displaying these navigational items when needed, and flexibility to change their appearance or function down the road in later revisions of Android.
Introduction and Specifications
Luxury. Premium. Exclusive. These are words rarely associated with laptops, particularly PC laptops. While Apple happily reaps in profits from the MacBook Pro, most other laptop manufacturers have a difficult time selling high-end laptops. The U260 is Lenovo’s attempt at a stylish flagship that will stick in the minds of buyers. Indeed, if you visit the IdeaPad main page, you’ll find that the U series is the only line of IdeaPad laptops described as “stylish” in the bite-sized popup descriptions.
Luxury. Premium. Exclusive. These are words rarely associated with laptops, particularly PC laptops. While Apple happily reaps in profits from the MacBook Pro, most other laptop manufacturers have a difficult time selling high-end laptops. Some companies, such as HP, have simply resorted to emulating Apple’s successful formula (with the Envy line) while others, such as Sony, seem to have made peace with their small portion of the laptop market. ASUS’s recent Bamboo line, which we recently reviewed in the form of the U33JC, proved to be the best recent attempt at a luxury laptop by any PC laptop vendor. But it was essentially a diamond in the rough, and it has few peers.
The U260 is Lenovo’s attempt at a stylish flagship that will stick in the minds of buyers. Indeed, if you visit the IdeaPad main page, you’ll find that the U series is the only line of IdeaPad laptops described as “stylish” in the bite-sized popup descriptions.
Before we go into the design details, however, let’s take a look at the guts of this slim machine.

The AMD Fusion Processors Arrive
The MSI E350IA-E45 mini-ITX motherboard is the first system to hit our test bench that integrates the AMD E-350 Fusion APU into a desktop-ready configuration. By combining great performance per watt with features like SATA 6.0 Gb/s and USB 3.0, the MSI motherboard would make a great contender for a new low cost home theater build. Does it stand out at all from the reference platform we saw last year though?Introduction
I have been looking forward to retail availability of the AMD Fusion APU based platforms since I first got hands on time with them back at GDC in 2010. Since then I have gone to AMD's offices once or twice to sit down with marketing, engineers, designers and the hardware itself to really put it to the test and to get AMD's take on the platform, it's stance in the market and the company's goals against Intel.
Last November I was able to actually benchmark and test a reference system at AMD's Austin campus to get a preview of how the performance of Fusion-enabled notebooks and desktops panned out and the initial results were intriguing.
Also, we did have a short preview of a Toshiba C655D 15.6-in notebook last month with a full review pending using a single-core iteration of the platform. Check that out if you are interested before continuing on with this review below.
Introduction, Specifications and Packaging
Today we take a look at the newly released Intel 510 Series SSD. This is Intel's first SATA 6Gb/sec offering. They chose to go with a non-Intel branded controller, which took us by surprise to say the least. Can Intel's SSD gurus transform a previously competing controller into something that can compete with their previous 10-channel monsters?
One of our Sandy Bridge complaints
Lucid first showed up its Virtu software virtualization for GPUs at CES in January but they are now finally ready to give us some hands on testing time. Virtu promises to marry the integrated graphics features of the Sandy Bridge Intel processor graphics to the performance of discrete solutions from NVIDIA and AMD.
Out is Light, in is Copper
Yup, you read that right: Intel Light Peak is no more and it has been replaced by the official branding of Intel Thunderbolt Technology. Love it or hate it, that is what we are going to be using for the future and now it's time to get down to the nitty-gritty about what it does and what it can do.
Introduction and Specifications
Another week, and another Vertex 3 release from OCZ! This time we take a look at the consumer oriented model, with more usable space and a promise of comparable performance. How will this new model really stack up against the enterprise-grade workhorse?
AMD at the ISSCC 2011
AMD has provided further details on the Bulldozer architecture at the ISSCC 2011 conference. These include an overall view of each module and some of the physical characteristics, a redesign of the schedulers and integer execution units, and a comprehensive look at power saving features that allow the Bulldozer core to exist in moderate power and TDP ranges. We cover the highlights of the submitted papers and make some guesses at what the final product will look like.
Introduction and Features
ECS has put together an extremely unique LGA 1155 motherboard that hardcore gamers need to pay attention to in the P67H2-A. While it has all the high-end features available in other P67 offerings, the P67H2-A went a step further and incorporated Lucid Hydra technology that allows gamers to use different GPUs from NVIDIA and AMD in one system. Now gamers can use their legacy cards in tandem with newer graphics cards to boost gaming performance!
Introduction and Features
Zalman’s latest high-end power supply uses two heat pipes to help quietly and efficiently deliver up to a 1,000 watts of clean, stable power with support for dual and 3-way graphics adapters. Check it out!
Intel Missteps
AMD is unleashing a... marketing campaign. Ok, we were hoping that with the Sandy Bridge bug and its delay, AMD would step up and release at least some new CPUs and perhaps the new AM3+ platform. But alas, we take a look at the only official response to Intel's stumble. While this is a new trick from AMD, will it be enough to gobble up some business that Intel left on the table by pulling Sandy Bridge parts from the market?