What to look for and our Test Setup
Because of the complexity and sheer amount of data we have gathered using our Frame Rating performance methodology, we are breaking it up into several articles that each feature different GPU comparisons. Here is the schedule:
- 3/27: Frame Rating Dissected: Full Details on Capture-based Graphics Performance Testing
- 3/27: Radeon HD 7970 GHz Edition vs GeForce GTX 680 (Single and Dual GPU)
- 3/30: AMD Radeon HD 7990 vs GeForce GTX 690 vs GeForce GTX Titan
- 4/2: Radeon HD 7950 vs GeForce GTX 660 Ti (Single and Dual GPU)
- 4/5: Radeon HD 7870 GHz Edition vs GeForce GTX 660 (Single and Dual GPU)
- 4/16: Frame Rating: Visual Effects of Vsync on Gaming Animation
Today marks the conclusion of our first complete round up of Frame Rating results, the culmination of testing that was started 18 months ago. Hopefully you have caught our other articles on the subject at hand, and you really will need to read up on the Frame Rating Dissected story above to truly understand the testing methods and results shown in this article. Use the links above to find the previous articles!
To round out our Frame Rating testing in this interation, we are looking at more cards further down the product stack in two different sets. The first comparison will look at the AMD Radeon HD 7870 GHz Edition and the NVIDIA GeForce GTX 660 graphics cards in both single and dual-card configurations. Just like we saw with our HD 7970 vs GTX 680 and our HD 7950 vs GTX 660 Ti testing, evaluating how the GPUs compare in our new and improved testing methodology in single GPU configurations is just as important as testing in SLI and CrossFire. The GTX 660 ($199 at Newegg.com) and the HD 7870 ($229 at Newegg.com) are the closest matches in terms of pricing though both card have some interesting game bundle options as well.
AMD's Radeon HD 7870 GHz Edition
Our second set of results will only be looking at single GPU performance numbers for lower cost graphics cards like the AMD Radeon HD 7850 and Radeon HD 7790 and from NVIDIA the GeForce GTX 650 Ti and GTX 650 Ti BOOST. We didn't include multi-GPU results on these cards simply due to time constraints internally and because we are eager to move onto further Frame Rating testing and input testing.
NVIDIA's GeForce GTX 660
If you are just joining this article series today, you have missed a lot! If nothing else you should read our initial full release article that details everything about the Frame Rating methodology and why we are making this change to begin with. In short,
Because FRAPS measures frame times at a different point in the game pipeline (closer to the game engine) its results can vary dramatically from what is presented to the end user on their display. Frame Rating solves that problem by recording video through a dual-link DVI capture card that emulates a monitor to the testing system and by simply applying a unique overlay color on each produced frame from the game, we can gather a new kind of information that tells a very unique story.
The capture card that makes all of this work possible.
I don't want to spend too much time on this part of the story here as I already wrote a solid 16,000 words on the topic in our first article and I think you'll really find the results fascinating. So, please check out my first article on the topic if you have any questions before diving into these results today!
|Test System Setup|
|CPU||Intel Core i7-3960X Sandy Bridge-E|
|Motherboard||ASUS P9X79 Deluxe|
|Memory||Corsair Dominator DDR3-1600 16GB|
|Hard Drive||OCZ Agility 4 256GB SSD|
NVIDIA GeForce GTX 660 2GB
AMD Radeon HD 7870 2GB
NVIDIA GeForce GTX 650 Ti 1GB
NVIDIA GeForce GTX 650 Ti BOOST 2GB
AMD Radeon HD 7850 2GB
AMD Radeon HD 7790 1GB
AMD: 13.2 beta 7
NVIDIA: 314.07 beta
|Power Supply||Corsair AX1200i|
|Operating System||Windows 8 Pro x64|
On to the results!
October 7, 2012 - 04:17 PM | Jeremy Hellstrom
Gigabyte's Windforce cooler has become popular thanks to its efficient performance and low noise, which makes it perfect for a card like the GTX 660 which you would expect to find in a small enclosure. Gigabyte gave a little more power to this non-Ti GTX 660 however, with a base clock of 1033MHz, boosting to 1098MHz and GDDR5 at 6GHz which Guru of 3D managed to increase when they tried overclocking the card and ended up with many benchmarks equalling or surpassing a GTX 660 Ti. At $230 the Gigabyte GeForce GTX 660 Windforce OC is not a bad choice for a system that needs to be quiet and won't be used to play the newest games at high settings,
"We review one more Gigabyte GeForce GTX 660 it is the Windforce OC model The Gigabyte GeForce GTX 660 Windforce OC comes with a dual-slot Windforce cooler that is incredibly silent yet manages to keep the card at very cool temps, and it's even factory overclocked for you. Have a peek as this card should be somewhere at the top of you list. Combined with Ulra Durable component selection you may expect something long-lasting and well performing."
Here are some more Graphics Card articles from around the web:
- ASUS GTX 560 Ti 2GB DirectCUII @ Bjorn3D
- Zotac GeForce GT 640 Zone Edition Video Card Review @ Legit Reviews
- ARCTIC Accelero Twin Turbo 690 Cooler @ Kitguru
- i3DSpeed, September 2012 @ iXBTlabs
- Workstation Graphics Card Comparison Guide @ TechARP
- Prolimatech MK-26 Video Card Cooler @ TweakTown
- Prolimatech MK-26 VGA Cooler Review @ Hardware Secrets
- Devilishly Effective: Deepcool Dracula Graphics Card Cooler @ X-bit Labs
- Arctic Accelero Hybrid 7970 Liquid Cooling System @ Guru of 3D
- Sapphire Radeon HD 7950 3GB Vapor-X Video Card Review @ Legit Reviews
- HIS 7750 iCooler 1GB GDDR5 PCI-E Video Card Review @ Madshrimps
- XFX Radeon HD 7850 1GB Core Edition Video Card Review @ Legit Reviews
- Sapphire Radeon HD 7770 fleX GHz Edition 1GB Graphics Card Review @ eTeknix
- Sapphire Flex HD 7770 GHz Edition @ Bjorn3D
- Sapphire Radeon HD 7770 Flex Edition 1GB @ Tweaktown
- Sapphire Radeon HD 7770 GHz Edition FleX Review @ Neoseeker
- PowerColor HD 7870 PCS+ 2 GB @ techPowerUp
- Sapphire HD 7970 6GB Vapor-X GHZ Edition Review @ OCC
- Arctic Accelero Hybrid 7970 Cooler Review @ OCC
- SAPPHIRE Vapor-X Radeon HD 7970 GHz Edition @ [H]ard|OCP
September 22, 2012 - 04:01 AM | Tim Verry
This week has certainly had its share of leaked graphics card news, and the latest information on that market indicates that MSI is working on a enthusiast-level HAWK version of the GTX 660 GPU. That card will take the GK106 Kepler chip to the max with the fastest factory overclocks yet.
Last week Nvidia debuted its GTX 660 graphics card, which is currently the lowest-end GPU to use the Kepler GK106 chip. Once the NDA broke, the review of the card went live, and the performance of the reference designs was analyzed.
GK106 features 5 SMX units in 2.5 Graphics Processing Clusters (GPC), which Nvidia has said is the most that the chip will ever have. The GTX 660 version has 960 CUDA cores, 80 texture units, 24 ROPs, and a 192-bit memory bus.
While GK106 will likely not see a version with three complete GPCs, the mid-range Kepler chip still has a bit of performance headroom that can be unleased with overclocking, and several OEMs are preparing factory overclocked GTX 660 graphics cards with custom coolers.
The latest custom GTX 660 to be leaked is the MSI GTX 660 HAWK edition with out-of-the-box overclocked settings, beefed up power management hardware, and a TwinFrozr IV cooler.
MSI has gone with a custom PCB and cooler to keep the GK106 fed with power and running cool. The PCB has been fitted with a 10-phase VRM, SSC chokes, and IR DirectFETs to provide the power needed to run at overclocked settings. Of course, MSI has included its GPU Reactor hardware – a feature exclusive to its HAWK branded cards that differentiates them from the lower tier lightning and power edition cards. The GPU Reactor is a set of tantalum capacitors that are said to deliver more stable voltage to the Kepler chip.
The graphics card continues to be powered by two 6-pin PCI-E power connectors. MSI has also added a dual BIOS feature to the HAWK card that will run the GPU at GTX 660 reference speeds (980/1033MHz) or at the overclocked profile, depending on physical BIOS switch position.
Clockspeeds are where the MSI GTX 660 HAWK really gets interesting, however. The base clockspeed of 1100MHz is more than most GTX 660 cards run at /boost/ speeds, and the 1176MHz boost speed is the fastest boost speed we’ve seen yet. In an interesting twist, MSI has not touched the clockspeed for the 2GB of GDDR5 memory. Instead, it has left the graphics card clocked at 6008MHz memory (the reference speed). It may be that the memory chips simply cannot overclock much beyond the reference clockspeeds as there are no other factory overclocked GTX 660s that I know of that push the memory clocks beyond reference.
Of course, the other big selling point of this MSI card is the custom cooler – one that Josh seems to like thanks to the addition of “supa pipes!” The Twin Frozr IV is a dual fan cooled aluminum fin array that is connected to the block over the GPU by five heat-pipes. There does not appear to be much information on the HSF beyond that, unfortunately. Judging by past iterations, it should be more than capable of running at the factory overclocked speeds, however.
Display outputs will include two DVI, one DisplayPort, and one HDMI. Pricing and availability are still unknown, but expect it to command a small premium over the standard GTX 660’s $229 price tag.
EXPreview was the source of the photos, however the webpage seems to be down at the moment. Fortunately, WCCF Tech manged to grab them before the original page was lost, and you can see more photos of the MSI GTX 660 HAWK (SKU: N660GTX HAWK) on that page.
A comparison chart of the various GTX 600 series cards.
Note: GTX 650 is GK107, GTX 660 is GK106, GTX 660Ti and above is GK104.
Read more about Nvidia's Kepler graphics card architecture at PC Perspective!
September 20, 2012 - 04:35 PM | Jeremy Hellstrom
As promised [H]ard|OCP has spent some time overclocking the ASUS GTX 660 DirectCU II card and have come back with their results. The highest GPU clock they managed was a reported 1170MHz Boost clock in GPU Tweak but which was 1215MHz in actual in-game performance. While that was the high speed record it did not provide the best performance as the frequency often dipped much lower because of the heat produced, [H]'s sweet spot was actually a 1100MHz Boost clock, in-game a much more steady 1152MHz though it did still dip occasionally. They also upped the memory, but again because of the heat produced by the overclock they could not raise voltage without negative consequences. Check the whole review here.
"We put our new ASUS GeForce GTX 660 through the ringer of overclocking and make real world gaming comparisons. If you are thinking the new GTX 660 (GK106) GPU will be a good overclocker like its bigger brother GK104, you may be in for a surprise that puts the new GTX 660 in a new light."
Here are some more Graphics Card articles from around the web:
- ASUS GeForce GTX 660 Ti DirectCU II TOP @ [H]ard|OCP
- GeForce 9800 GT vs GeForce 660 GTX @ Guru of 3D
- Zotac GTX680 AMP Edition @ Bjorn3D
- EVGA GeForce GTX 660 SuperClocked Video Card Review @ Hardware Secrets
- Zotac GeForce GTX 660 with GK106 GPU @ @ X-bit Labs
- NVIDIA GeForce GTX 660 2GB Review @ Techgage
- Sparkle GTX650 OC Dragon Series @ Kitguru
- GeForce GTX 650 MSI Power edition @ Guru3D
- KFA GeForce GTX 650 EX OC 1 GB @ techPowerUp
- EVGA GeForce GTX 660 SC @ Guru of 3D
- MSI GeForce GTX 650 Power Edition OC 1 GB @ techPowerUp
- NVIDIA Chips Comparison Table @ Hardware Secrets
- NVIDIA FXAA Anti-Aliasing Performance @ Phoronix
- Seven Nvidia GeForce GTX 680 round-up: Super cards @ Hardware.info
- Desktop Graphics Card Comparison Guide @ TechARP
- Arctic Accelero Twin Turbo 6990 VGA Cooler Review @ eTeknix
- Sapphire Radeon HD 7750 1GB Low Profile Review @ Neoseeker
- ARCTIC Accelero Hybrid 7970 @ Hardwareoverclock
- PowerColor Devil 13 HD 7990 Review @ OCC
- Sapphire Radeon HD 7770 Flex Edition Review @ Hi Tech Legion
- XFX Radeon HD 7770 Black Edition Overclocked 1GB Graphics Card Review @ eTeknix
- Sapphire HD7770 GHZ FleX Edition @ Kitguru
- Sapphire Radeon Flex HD 7770 GHz Edition Video Card @ Pro-Clockers
- Sapphire Radeon HD 7950 3GB Vapor-X Review @ OCC
- HD 7990 Review; PowerColor’s Devil 13 @ Hardware Canucks
- MSI HD7850 Power Edition Video Card @ Bjorn3D
Subject: General Tech | September 20, 2012 - 02:57 PM | Ken Addison
PC Perspective Podcast #219 - 09/20/2012
Join us this week as we talk about the NVIDIA GTX 660 and 650, Luicid Dynamix technology, A85 Motherboards and more!
The URL for the podcast is: http://pcper.com/podcast - Share with your friends!
- iTunes - Subscribe to the podcast directly through the Store
- RSS - Subscribe through your regular RSS reader
- MP3 - Direct download link to the MP3 file
Hosts: Ryan Shrout, Josh Walrath, Jeremy Hellstrom, and Allyn Malvantano
Program length: 1:13:13
Podcast topics of discussion:
- Week in Reviews:
- 0:18:18 This Podcast is brought to you by MSI!
News items of interest:
- 0:19:10 NVIDIA GeForce GTX 650
- 0:22:20 Trinity APUs to be binned as CPU only?
- 0:24:50 Lucid Dynamix adjusts quality in real-time
- 0:32:30 ASUS Skills Challenge contest
- 0:34:40 Intel NUC PCs coming soon
- 0:37:15 You missed our Borderlands 2 event Tuesday!
- 0:38:10 OCZ CEO heads out the door
- 0:44:10 Gigabyte A85 motherboard spotted
- 0:47:30 AMD Sea Island 8800 series leaks
- 0:51:35 ASUS Tablet pricing leaks
- 0:54:15 Helium in upcoming hard drives
- 0:58:05 Intel WiDi 3.5 with Miracast Launched
- 1-888-38-PCPER or firstname.lastname@example.org
- http://twitter.com/ryanshrout and http://twitter.com/pcper
September 13, 2012 - 05:09 PM | Jeremy Hellstrom
As those of you who have already read the post below this one know, ASUS decided to create a DirectCU II model for their GTX 660, with the famous heatpipe bearing heatsink. They have overclocked the GPU already and the card comes with tools to allow you to push it even further if you take the time to get to know your card and what it can manage. Check the full press release below.
Fremont, CA (September 13, 2012) - ASUS is excited to release the ASUS GeForce GTX 660 DirectCU II series featuring the Standard, OC and TOP editions. Utilizing the latest 28nm NVIDIA Kepler graphics architecture, the OC and TOP cards deliver a factory-overclock while all three cards feature ASUS exclusive DirectCU thermal design and GPU Tweak tuning software to deliver a quieter, cooler, faster, and more immersive gameplay experience. The ASUS GeForce GTX 660 DirectCU II series set a new benchmark for exceptional performance and power efficiency in a highly affordable graphics card. The ASUS GeForce GTX 660 DirectCU II is perfect for gamers looking to upgrade from last-generation graphics technology while retaining ASUS’ class-leading cooling and acoustic performance.
Superior Design and Software for the Best Gaming Experience ASUS equips the GeForce GTX 660 DirectCU II series with 2GB of GDDR5 memory clocked up to 6108MHz. The TOP edition features a blistering GPU core boost clock of 1137MHz, 104MHz faster than reference designs while the OC edition arrives with a factory-set GPU core boost speed of 1085MHz. Exclusive ASUS DIGI+ VRM digital power delivery and user-friendly GPU Tweak tuning software allows all cards to easily overclock beyond factory-set speeds offering enhanced performance in your favorite game or compute intensive application.
The ASUS GeForce GTX 660 DirectCU II series feature exclusive DirectCU technology. The custom designed cooler uses direct contact copper heatpipes for faster heat transduction and up to 20% lower normal operating temperatures than reference designs. The optimized fans are able operate at lower speeds providing a much quieter gaming or computing environment. For enhanced stability, energy efficiency, and overclocking margins the cards feature DIGI+ VRM digital power deliver plus a class-leading six-phase Super Alloy Power design for the capacitors, chokes, and MOSFETs meant to extend product lifespan and durability while operating noise-free even under heavy workloads.
ASUS once again includes the award winning GPU Tweak tuning suite in the box. Overclocking-inclined enthusiasts or gamers can boost clock speeds, set power targets, and configure fan operating parameters and policies; all this and more is accessible in the user-friendly interface. GPU Tweak offers built-in safe guards to ensure all modifications are safe, maintaining optimal stability and card reliability.
September 13, 2012 - 04:49 PM | Jeremy Hellstrom
The non-Ti version of the GTX 660 has arrived on test benches and retailers, with even the heavily overclocked cards being available at $230, like EVGA's Superclocked model or MSI's OC'd card once you count the MIR. That price places it right in between the HD 7850 and 7870, and ~$70 less than the GTX 660 Ti, while the performance is mostly comparable to a stock HD7870 though the OC versions can top the GTX660.
[H]ard|OCP received ASUS' version of the card, a DirectCU II based version with the distinctive heatpipes. ASUS overclocked the card to a 1072MHz base clock and 1137MHz GPU Boost and [H] plans to see just how much further the frequencies can be pushed at a later date. Their final word on this card for those looking to upgrade, for those of you with "a GTX 560 Ti, and even the GTX 570, the GTX 660 is an upgrade".
"NVIDIA is launching the new GeForce GTX 660 GPU, codenamed GK106. We have a retail ASUS GeForce GTX 660 DirectCU II custom video card fully evaluated against a plethora of competition at this price point. This brand new GPU aims for a price point just under the GTX 660 Ti but still promises to deliver exceptional 1080p gaming with AA."
Here are some more Graphics Card articles from around the web:
- Nvidia's GeForce GTX 660 @ The Tech Report
- ASUS GTX 660 Direct CU II TOP Review @ OCC
- NVIDIA GeForce GTX 660 Launch Review @ Neoseeker
- EVGA GeForce GTX 660 SC (SuperClocked) 2GB @ Bjorn3D
- Nvidia GeForce GTX 660 @ Hardware.info
- NVIDIA Geforce GTX 660 Reviews @Hi Tech Legion
- The NVIDIA GeForce GTX 660 Review: GK106 Fills Out The Kepler Family @ AnandTech
- SI GEFORCE GTX 660 Twin Frozr 2GB OC @ Tweaktown
- Gigabyte GeForce GTX 660 @ Legion Hardware
- Gigabyte GTX 660 Overclock 2GB Graphics Card Review @ eTeknix
- EVGA GeForce GTX 660 2GB SuperClocked @ Benchmark Reviews
- MSI GTX 660 OC Edition Twin Frozr @ Kitguru
- Nvidia GeForce GTX 660 @ Techspot
- Gigabyte GTX 660 OC Video Card Review @ Ninjalane
- MSI GTX 660 Twin Frozr 2GB OC @ LanOC Reviews
- NVIDIA GeForce GTX 660 Overclocked Graphics Card Review (EVGA/ZOTAC)@ HardwareHeaven
- EVGA GTX 660 Superclocked 2Gb @ LanOC Reviews
- NVIDIA GeForce GTX 660 Review @ Hardware Canucks
- ASUS, KFA2 and MSI GeForce GTX 660 reviews with 2-way SLI @ Guru of 3D
- MSI GeForce GTX 660 Twin Frozr 2 GB @ techPowerUp
- ZOTAC GeForce GTX 660 2 GB @ techPowerUp
- Gigabyte GTX 660 Windforce OC 2 GB @ techPowerUp
- ASUS GeForce GTX 660 Direct Cu II 2 GB @ techPowerUp
NVIDIA GeForce GTX 660 Video Card Review w/ MSI and EVGA @ Legit Reviews
- Six GeForce GTX 660 Ti graphics cards: ASUS, EVGA, Gigabyte, MSI and Zotac @ Hardware.info
- Gigabyte GTX 660 Ti OC Windforce @ Kitguru
- AFOX Radeon HD 7850 (Single Slot), MSI R7870 Hawk Graphics Cards @ iXBT Labs
- Inno3D GTX 680 iChill Black Series Accelero Hybrid 4GB Overclocked @ Tweaktown
- MSI Geforce GTX 670 Power Edition @ Rbmods
- i3DSpeed, August 2012 @ iXBT Labs
- Arctic Accelero Xtreme 7970 VGA Cooler Review @ eTeknix
- Sapphire Radeon HD 7970 Vapor-X OC 6GB Graphics Card Review @ eTeknix
- Sapphire FleX HD 7770 GHz Edition @ LanOC Reviews
GK106 Completes the Circle
The release of the various Kepler-based graphics cards have been interesting to watch from the outside. Though NVIDIA certainly spiced things up with the release of the GeForce GTX 680 2GB card back in March, and then with the dual-GPU GTX 690 4GB graphics card, for quite quite some time NVIDIA was content to leave the sub-$400 markets to AMD's Radeon HD 7000 cards. And of course NVIDIA's own GTX 500-series.
But gamers and enthusiasts are fickle beings - knowing that the GTX 660 was always JUST around the corner, many of you were simply not willing to buy into the GTX 560s floating around Newegg and other online retailers. AMD benefited greatly from this lack of competition and only recently has NVIDIA started to bring their latest generation of cards to the price points MOST gamers are truly interested in.
Today we are going to take a look at the brand new GeForce GTX 660, a graphics cards with 2GB of frame buffer that will have a starting MSRP of $229. Coming in $80 under the GTX 660 Ti card released just last month, does the more vanilla GTX 660 have what it takes to replace the success of the GTX 460?
The GK106 GPU and GeForce GTX 660 2GB
NVIDIA's GK104 GPU is used in the GeForce GTX 690, GTX 680, GTX 670 and even the GTX 660 Ti. We saw the much smaller GK107 GPU with the GT 640 card, a release I was not impressed with at all. With the GTX 660 Ti starting at $299 and the GT 640 at $120, there was a WIDE gap in NVIDIA's 600-series lineup that the GTX 660 addresses with an entirely new GPU, the GK106.
First, let's take a quick look at the reference card from NVIDIA for the GeForce GTX 660 2GB - it doesn't differ much from the reference cards for the GTX 660 Ti and even the GTX 670.
The GeForce GTX 660 uses the same half-length PCB that we saw for the first time with the GTX 670 and this will allow retail partners a lot of flexibility with their card designs.
Subject: General Tech | July 10, 2012 - 07:20 PM | Tim Verry
We have seen and reviewed NVIDIA’s high-end Kepler graphics cards, but the company’s mid-range line has been even harder to find than the GTX 680 was a couple months ago. That may be about to change though, as recent rumors suggest that the company is preparing at least three mid-range graphics cards for public release.
The current GT 640. Expect the refresh to look very similar.
The cheapest rumored card is a refresh of the existing GeForce GT 640. The refresh is slated for an August 2012 release and it takes the existing GK107 GPU with 384 CUDA cores and pairs it with GDDR5 memory instead of the currently used GDDR3. Videocardz predicts that the move to GDDR5 will bump the price up to a bit over $100.
The next card up will reportedly cost around $150 and will be released in August. The GeForce GT 650 Ti will allegedly be based around the GK106 GPU with 960 CUDA cores enabled. It will likely be paired with up to 2GB of GDDR5 memory and a 192-bit memory interface. This card will likely be the high-end HTPC and/or very entry level gaming card on the NVIDIA side.
However, for those serious about wanting to get into gaming, they should probably spend a bit more on the GPU and get at least the GTX 660. This rumored card is using a GK106 GPU with 1152 CUDA cores enabled and an alleged 1.5GB of GDDR5 memory with a 192-bit interface. As far as pricing, it will be positioned between the GT 650 Ti and the GeForce GTX 670 – somewhere in the $200-300 range.
Interestingly, if rumors turn out to be true, there may be yet another new graphics card that would fill the performance (and price) void between the GTX 660 and GTX 670: the GeForce GTX 660 Ti. Allegedly, the GTX 660 Ti would be very close to the GTX 670 as far as specifications are concerned. Both cards are based on the GK104 Kepler GPU (which we recently reviewed) and would have 1344 CUDA cores enabled. Where the two differ in the predicted specifications is memory. While the GeForce GTX 670 has either 2GB or 4GB of GDDR5 memory on a 256-bit interface, the GTX 660 Ti will have 1.5GB or 3GB of GDDR5 memory with a 192-bit interface. This card is also predicted to be released in August with the above mentioned NVIDIA GPUs. You can expect this card to be priced in the $300 to $400 dollar range, with an emphasis on the former for reference designs with 1.5GB of memory.
All these rumored cards should really help NVIDIA to flesh out its Kepler lineup and take on AMD on all fronts. These cards (assuming the rumors hold true, of course) should also be much easier to find and get a hold of since they are probably using binned chips that could not be sold as a GTX 670 or GTX 680 which were difficult to find in stock at launch.
What do you think about these rumors, do they sound plausible? Have you been holding off on Kepler until cheaper cards are released? Let us know in the comments below. You can find more information on the rumored graphics cards here.