Subject: General Tech, Graphics Cards, Processors, Mobile | May 15, 2014 - 05:02 PM | Scott Michaud
Tagged: nvidia, xaiomi, mipad, tegra k1
Tegra K1 is NVIDIA's new mobile processor and this first to implement the Kepler graphics architecture. In other words, it has all of the same graphics functionality as a desktop GPU with 364 GigaFLOPs of performance (a little faster than a GeForce 9600 GT). This is quite fast for a mobile product. For instance, that amount of graphics performance could max out Unreal Tournament 3 to 2560x1600 and run Crysis at 720p. Being Kepler, it supports OpenGL 4.4, OpenGL ES 3.1, DirectX 11 and 12, and GPU compute languages.
Xiaomi is launching their MiPad in Beijing, today, with an 8-inch 2048x1536 screen and the Tegra K1. They will be available in June (for China) starting at $240 USD for the 16GB version and going up to $270 for the 64GB version. Each version has 2GB of RAM, an 8MP rear-facing camera, and a 5MP front camera.
Now, we wait and see if any Tegra K1 devices come to North America and Europe - especially at that price point.
Subject: General Tech, Graphics Cards | May 12, 2014 - 08:00 PM | Scott Michaud
Tagged: titan z, nvidia, gtx titan z, geforce
To a crowd of press and developers at their GTC summit, NVIDIA announced the GeForce GTX Titan Z add-in board (AIB). Each of the two, fully unlocked, GK110 GPUs would each have access to 6GB of GDDR5 memory (12GB total). The card was expected to be available on May 8th but has yet to surface. As NVIDIA has yet to comment on the situation, many question whether it ever will.
And then we get what we think are leaked benchmarks (note: two pictures).
One concern about the Titan Z was its rated 8 TeraFLOPs of compute performance. This is a fairly sizable reduction from the theoretical maximum of 10.24 TeraFLOPs of two Titan Black processors and even less than two first-generation Titans (9 TeraFLOPs combined). We expected that this is due to reduced clock rates. What we did not expect is for benchmarks to show the GPUs boost way above those advertised levels, and even beyond the advertised boost clocks of the Titan Black and the 780 Ti. The card was seen pushing 1058 MHz in some sections, which leads to a theoretical compute performance of 12.2 TeraFLOPs (6.1 TeraFLOPs per GPU) in single precision. That is a lot.
These benchmarks also show that NVIDIA has a slight lead over AMD's R9 295X2 in many games, except Battlefield 4 and Sleeping Dogs (plus 3DMark and Unigine). Of course, these benchmarks measure the software reported frame rate and frame times and those may or may not be indicative of actual performance. While I would say that the Titan Z appears to have a slight performance lead over the R9 295X2, although a solid argument for an AMD performance win exists, it does so double the cost (at its expected $3000 USD price point). That is not up for debate.
So, until NVIDIA says anything, the Titan Z is in limbo. I am sure there exists CUDA developers who await its arrival. Personally, I would just get three Titan Blacks since you are going to need to manually schedule your workloads across multiple processors anyway (or 780 Tis if 32-bit arithmetic is enough precision). That is, of course, unless you cannot physically fit enough GeForce Titan Blacks in your motherboard and, as such, you require two GK110 chips per AIB (but not enough to bother writing a cluster scheduling application).
Subject: General Tech, Graphics Cards, Mobile | May 7, 2014 - 02:26 AM | Scott Michaud
Tagged: Thunderbolt 2, thunderbolt, nvidia, GeForce GTX 780 Ti
Externally-attached GPUs have been a topic for many years now. Numerous companies have tried, including AMD and Lucid, but no solution has ever been a widely known and available product. Even as interfaces increase in bandwidth and compatibility with internal buses, it has never been something that a laptop salesperson could suggest to users who want to dock into a high-performance station at home. At best, we are seeing it in weird "coin mining" racks to hang way more GPUs above a system than could physically mount on the motherboard.
Apparently that has not stopped the DIY community, according to chatter on Tech Inferno forums. While the above video does not really show the monitor, MacBook Pro, and GPU enclosure at the same time, let alone all wired together and on, it seems reasonable enough. The video claims to give the MacBook Pro (running Windows 8.1) access to a GeForce GTX 780 Ti with fairly high performance, despite the reduced bandwidth. Quite cool.
Subject: Graphics Cards | May 6, 2014 - 03:36 AM | Tim Verry
Tagged: r9 295x2, powercolor, hawaii, dual gpu, devil 13
PowerColor has been teasing a new graphics card on its Facebook page. The photos show a macro shot of the Devil 13 logo along with captions hitting at the new card being a dual GPU monster including one caption referring the upcoming Devil 13 as a "dual beast."
PowerColor's previous Devil 13 branded graphics card was the Radeon HD 7990 Devil 13 which contained two HD 7970 "Tahiti" GPUs on one PCB. Coincidentally, AMD recently launched a new dual GPU reference design based around two R9 290x "Hawaii" GPUs called the R9 295x2. It is still rumor and speculation at this point, but the timing and leaked photos seem to point squarely at the upcoming Devil 13 card being the first air cooled custom R9 295x2!
Adding credence to the rumors, leaked photos have appeared online with a PCB backplate that appears to match the backplate shown in the official teaser photo. The leaked photos show an absolutely beastly triple slot graphics card that places two GPUs in CrossFire on a single custom PCB powered by four 8-pin PCI-E power connectors and cooled by a gargantuan HSF comprised of an aluminum fin stack and multiple large diameter copper heatpipes along with three fans. The cooler and PCB are reinforced with brackets and a metal backplate to help keep the air cooler in pace and the PCB from bending.
If the rumors hold true, PowerColor will be unveiling the first air cooled dual GPU R9 295X2 graphics card which is an impressive feat of engineering! Using four 8-pin PCI-E power connectors definitely suggests that aftermarket overclocking is encouraged and supported even if PowerColor does not end up factory overclocking their dual GPU beast.
For reference, the stock AMD R9 295X2 features two full Hawaii GPUs with 5,632 stream processors clocked at up to 1018 MHz interfaced with 8GB of total GDDR5 memory over a 512-bit bus (each GPU has 4GB of memory and a 512-bit bus). AMD rates this configuration at 11.5 TFLOPS of single precision performance. The reference R9 295X2 has a 500W TDP and uses two 8-pin PCI-E power connectors.
Please excuse me while I wipe the drool off of my keyboard...
Stay tuned to PC Perspective for more details on the mysterious dual GPU Devil 13 from PowerColor!
In the meantime, check out our full review of the R9 295X2 (and the Hawaii architecture) and what happens when you put two R9 295X2s in Quad CrossFire into a single system for 4K gaming goodness!
Subject: General Tech, Graphics Cards | May 5, 2014 - 05:03 PM | Scott Michaud
Tagged: nvidia, geforce experience, shield
NVIDIA has released version 2.0.1 of GeForce Experience. This update does not bring many new features, hence why it is a third-level increment to the version number, but is probably worthwhile to download regardless. Its headlining feature is security enhancements with OpenSSL under remote GameStream on SHIELD. The update also claims to improve streaming quality and reduce audio latency.
While they do not seem to elaborate, I assume this is meant to fix Heartbleed, which is an exploit that allows an attacker to receive a small snapshot of active memory. If that is that case, it is unclear whether the SHIELD, the host PC during a game session, or both endpoints are affected.
The new GeForce Experience is available at the NVIDIA website. If it is running, it will also ask you to update it, of course.
Subject: Graphics Cards | May 2, 2014 - 01:29 AM | Tim Verry
Tagged: titan z, nvidia, gpgpu, gk110, dual gpu, asus
NVIDIA unveiled the GeForce GTX TITAN Z at the GPU Technology Conference last month, and the cards will be for sale soon from various partners. ASUS will be one of the first AIB partners to offer a reference TITAN-Z.
The ASUS GTX TITAN Z pairs two full GK110-based GPUs with 12GB of GDDR5 memory. The graphics card houses a total of 5,760 CUDA cores, 480 texture manipulation units (TMUs), and 96 ROPs. Each GK110 GPU interfaces with 6GB of GDDR5 memory via a 384-bit bus. ASUS is using reference clockspeeds with this card, which means 705 MHz base and up to 876 MHz GPU Boost for the GPUs and 7.0 GHz for the memory.
For comparison, the dual-GPU TITAN Z is effectively two GTX TITAN Black cards on a single PCB. However, the TITAN Black runs at 889 MHz base and up to 980 MHz GPU Boost. A hybrid water cooling solution may have allowed NVIDIA to maintain the clockspeed advantage, but doing so would compromise the only advantage the TITAN Z has over using two (much cheaper) TITAN Blacks in a workstation or server: card density. A small hit in clockspeed will be a manageable sacrifice for the target market, I believe.
The ASUS GTX TITAN Z has a 375W TDP and is powered by two 8-pin PCI-E power connectors. The new flagship dual GPU NVIDIA card has an MSRP of $3,000 and should be available in early May.
Subject: General Tech, Graphics Cards | May 1, 2014 - 08:00 AM | Scott Michaud
Tagged: Mantle, amd
As our readers are well aware, Mantle is available for use with a few games. Its compatibility begun with the beta Catalyst 14.1 driver and an update for Battlefield 4. AMD was quite upfront about the technology, even granting a brief interview with Guennadi Riguer, Chief Architect of the API to fill in a few of the gaps left from their various keynote speeches.
What is under lock and key, however, is the actual software development kit (SDK). AMD claimed that it was too immature for the public. It was developed in partnership with DICE, Oxide Games, and other, established developers to fine-tune its shape, all the while making it more robust. That's fine. They have a development plan. There is nothing wrong with that. Today, while the SDK is still not public and sealed by non-disclosure agreement, AMD is accepting applications from developers who are requesting to enter the program.
If you want to develop a Mantle application or game, follow the instructions at their website for AMD to consider you. They consider it stable, performant, and functional enough for "a broader audience in the developer community".
AMD cites 40 developers already registered, up from seven (DICE, Crytek, Oxide, etc.).
If you are not a developer, then this news really did not mean too much to you -- except that progress is being made.
Subject: Editorial, General Tech, Graphics Cards | April 30, 2014 - 10:05 AM | Ryan Shrout
Tagged: hadron air, hadron, gtx 750, giveaway, evga, contest
Congrats to our winner: Pierce H.! Check back soon for more contests and giveaways at PC Perspective!!
In these good old United States of America, April 15th is a trying day. Circled on most of our calendars is the final deadline for paying up your bounty to Uncle Sam so we can continue to have things like freeway systems and universal Internet access.
But EVGA is here for us! Courtesy of our long time sponsor you can win a post-Tax Day prize pack that includes both an EVGA Hadron Air mini-ITX chassis (reviewed by us here) as well as an EVGA GeForce GTX 750 graphics card.
Nothing makes paying taxes better than free stuff that falls under the gift limit...
With these components under your belt you are well down the road to PC gaming bliss, upgrading your existing PC or starting a new one in a form factor you might not have otherwise imagined.
Competing for these prizes is simple and open to anyone in the world, even if you don't suffer the same April 15th fear that we do. (I'm sure you have your own worries...)
- Fill out the form at the bottom of this post to give us your name and email address, in addition to the reasons you love April 15th! (Seriously, we need some good ideas for next year to keep our heads up!) Also, this does not mean you should leave a standard comment on the post to enter, though you are welcome to do that too.
- Stop by our Facebook page and give us a LIKE (I hate saying that), head over to our Twitter page and follow @pcper and heck, why not check our our many videos and subscribe to our YouTube channel?
- Why not do the same for EVGA's Facebook and Twitter accounts?
- Wait patiently for April 30th when we will draw and update this news post with the winners name and tax documentation! (Okay, probably not that last part.)
A huge thanks goes out to friends and supporters at EVGA for providing us with the hardware to hand out to you all. If it weren't for sponsors like this PC Perspective just couldn't happen, so be sure to give them some thanks when you see them around the In-tar-webs!!
You need a bit of power for this
PC gamers. We do some dumb shit sometimes. Those on the outside looking in, forced to play on static hardware with fixed image quality and low expandability, turn up their noses and question why we do the things we do. It’s not an unfair reaction, they just don’t know what they are missing out on.
For example, what if you decided to upgrade your graphics hardware to improve performance and allow you to up the image quality on your games to unheard of levels? Rather than using a graphics configuration with performance found in a modern APU you could decide to run not one but FOUR discrete GPUs in a single machine. You could water cool them for optimal temperature and sound levels. This allows you to power not 1920x1080 (or 900p), not 2560x1400 but 4K gaming – 3840x2160.
All for the low, low price of $3000. Well, crap, I guess those console gamers have a right to question the sanity of SOME enthusiasts.
After the release of AMD’s latest flagship graphics card, the Radeon R9 295X2 8GB dual-GPU beast, our mind immediately started to wander to what magic could happen (and what might go wrong) if you combined a pair of them in a single system. Sure, two Hawaii GPUs running in tandem produced the “fastest gaming graphics card you can buy” but surely four GPUs would be even better.
The truth is though, that isn’t always the case. Multi-GPU is hard, just ask AMD or NVIDIA. The software and hardware demands placed on the driver team to coordinate data sharing, timing control, etc. are extremely high even when you are working with just two GPUs in series. Moving to three or four GPUs complicates the story even further and as a result it has been typical for us to note low performance scaling, increased frame time jitter and stutter and sometimes even complete incompatibility.
During our initial briefing covering the Radeon R9 295X2 with AMD there was a system photo that showed a pair of the cards inside a MAINGEAR box. As one of AMD’s biggest system builder partners, MAINGEAR and AMD were clearly insinuating that these configurations would be made available for those with the financial resources to pay for it. Even though we are talking about a very small subset of the PC gaming enthusiast base, these kinds of halo products are what bring PC gamers together to look and drool.
As it happens I was able to get a second R9 295X2 sample in our offices for a couple of quick days of testing.
Working with Kyle and Brent over at HardOCP, we decided to do some hardware sharing in order to give both outlets the ability to judge and measure Quad CrossFire independently. The results are impressive and awe inspiring.
Subject: Graphics Cards | April 29, 2014 - 10:22 AM | Ryan Shrout
Tagged: nvidia, watch_dogs, watch dogs, bundle, geforce
A bit of a surprise email found its way to my inbox today that announced NVIDIA's partnership with Ubisoft to include copies of the upcoming Watch_Dogs game with GeForce GTX graphics cards.
Gamers that purchase a GeForce GTX 780 Ti, GTX 780, GTX 770 or GTX 760 from select retailers will qualify for a free copy of the game. You can details on this bundle and available GPUs to take advantage of it at Amazon.com!
The press release also confirms inclusion of NVIDIA exclusive features like TXAA and HBAO+ in the game itself, which is interesting. From what I am hearing, Watch_Dogs is going to be a beast of a game on GPU hardware and we are looking forward to using it as a test platform going forward.
Full press release is included below.
OWN THE TECH AND CONTROL THE CITY WITH NVIDIA® AND UBISOFT®
Select GeForce GTX GPUs Now Include the Hottest Game of the Year: Watch_Dogs™
Santa Clara, CA — April 29, 2014 — Destructoid calls it one of the “most wanted games of 2014.” CNET said it was “one of the most anticipated games in recent memory.” MTV said it’s one of the “Can’t-Miss Video Games of 2014.” This, all before anyone out there has even played it.
So, starting today(1), gamers who purchase select NVIDIA® GeForce® GTX® 780 Ti, 780, 770 and 760 desktop GPUs can get their chance to play Watch_Dogs™, the new PC game taking the world by storm and latest masterpiece from Ubisoft®.
Described as a “polished, refined and truly next generation experience,” in Watch_Dogs you play as Aiden Pearce, a brilliant hacker whose criminal past led to a violent family tragedy. While seeking justice, you will monitor and hack those around you, access omnipresent security cameras, download personal information to locate a target, control traffic lights and public transportation to stop the enemy and more.
Featuring NVIDIA TXAA and HBAO+ technology for an interactive, immersive experience, it’s clear that gamers can’t wait to play Watch_Dogs, especially considering the effusive praise that the official trailer received. Launched mere weeks ago, the trailer has already been viewed more than a combined 650,000 times. For gamers, Watch_Dogs seamlessly blends a mixture of single-player and multiplayer action in a way never before seen, and Ubisoft has gone one step further in creating a unique ctOS mobile companion app for users of smartphone and tablet devices allowing for even greater access to the fun. If you haven’t checked out the trailer, please check it out here: https://www.youtube.com/watch?
The GeForce GTX and Watch_Dogs bundle is available starting today from leading e-tailers including Newegg, Amazon.com, TigerDirect, NCIX; add-in card vendors such as EVGA; and nationwide system builders including AVADirect, CyberPower, Digital Storm, Falcon Northwest, iBUYPOWER, Maingear, Origin PC, Puget Systems, V3 Gaming PC and Velocity Micro. For a full list of participating partners, please visit: www.GeForce.com/GetWatchDogs.
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