April 28th, 2012

GeForce GTX 660 Ti and GTX 670 Specification Leaked

OBR has just released the final specifications of both GeForce GTX 660 Ti and GTX 670 graphics card. Previous rumors were true, according this this data GTX 660 Ti will feature 6 SMX clusters, while GTX 670 will have 7 SMXs.

GeForce GTX 660 Ti is a mid-range graphics card featuring 6 SMX clusters with 1152 CUDA cores, 96 texture and 24 raster operating units. Card will be clocked at the same speed as GTX 680 — 1006 MHz. Also the memory will be clocked at 1502 MHz (6.0 GHz effective). The only difference is memory size and it’s interface. GTX 660 Ti has ‘only’ 192-bit bus width and 1536 MBs of memory buffer. Card will have a bandwidth of 144 GB/s and it’s overall single precision computing performance should be expected at 2.35 TFLOPS. This mid-range GPU will consume 150 Watts from power supply and $249 from your wallet :)

Moving forward to the most anticipated GeForce GTX 670, which lacks ‘Ti’ signature. It was also based on GK104 GPU, but it has only one SMX cluster disabled. This gives 1344 CUDA cores in total, 112 texture and 32 raster operating units. Card has slightly slower clocks than GTX 680, with a reference speed of 950 MHz. Memory is the same and is clocked at 1502 MHz, with 2048 MB of capacity and 256-bits wide bus. GTX 670 has computing performance measured around 2.7 TFLOPS. Maximum power draw should not exceed 180 Watts. Launch price was set to $399.

Both cards will likely be released simultaneously on May 10th. Today we shall expect official announcement of GeForce GTX 690, a first dual-gpu card from GeForce 600 Series.

	GeForce GTX 660 Ti	GeForce GTX 670	GeForce GTX 680
Transistors Count:	3.5 billions	3.5 billions	3.5 billions
Process:	28nm	28nm	28nm
SMXs:	6	7	8
CUDA Cores:	1152	1344	1536
Texture Units:	96	112	128
ROPs:	24	32	32
Base Clock:	1006 MHz	950 MHz	1006 MHz
Boost Clock:	~1058 MHz	~1002 MHz	1058 MHz
VideoCardz.com
Effective Memory Clock:	6008 MHz	6008 MHz	6008 MHz
Memory Interface:	192-bit	256-bit	256-bit
Memory Size:	1536 MB	2048 MB	2048 MB
Memory Type:	GDDR5	GDDR5	GDDR5
Memory Bandwidth:	144 GB/s	192 GB/s	192 GB/s
Performance:	2.35 TFLOPS	2.7 TFLOPS	3.1 TFLOPS
TDP:	150 W	180 W	195 W
Launch Price:	$249	$399	$499

Author: WhyCry

girmo
GTX 660 Ti is my next card ! Nice price
Muta_gwef
haha, like the note about consuming from your wallet! If this is indeed the final names/specs then it makes a bit more sense, at least it follows what they did with 560/560Ti/570/580 to some degree. I also think it rules out any 670Ti becuase frankly where can they go with the GK104 between the 670 and the 680 apart from the altered clocks, which no doubt will be obviated by factory overclocks and user overclocking. Do we know what time the NDA is lifted on the 690 btw?
Francmic000
Looking good! 660ti sli here i come.
http://videocardz.com VideoCardz
http://geforce.com/whats-new/articles/its-coming-countdown/
GeForce.com will likely feature new product pages when clock reaches 0. I will be sleeping then though, what a shame :)
I’m checking multiple chinese websites and none of them has GTX 690 leaks, what the? They always have pics :)
Francmic000
More things to consider, where’s your source this time around? The 660ti is running off one 6-pin right? Do you forsee 1.5gb memory holding back the 660ti sli vs 680 in 5760×1080?
http://videocardz.com VideoCardz
Source as mentioned in the post OBR: http://www.obr-hardware.com/2012/04/geforce-gtx-670660-ti-specs.html
I’m not sure whether one PEG connector is sufficient enough. PCI-E slot provides 75W, one 6-pin also gives 75W (that’s exactly 150W).
I think 660 Ti SLI configuration will provide better performance in all high resolutions. Thats 3GB of memory and 12 SMXs — 2304 CUDA cores vs 1536.
Muta_gwef
Francmic000, you’re going to be texture limited at that res. but then again the 680 only has 0.5GB more and 2GB has already been shown to be a limitation at high res with games like Skyrim and hi-res texture pack. Noone knows for sure yet though so you’re just going to have to wait for an sli-660Ti review before making up your mind.
VC, I too will be (peacefully) asleep at that time but I will be expeting the site to have a roundup of all the updates first thing in the morning ;)
http://videocardz.com VideoCardz
There is no sleep for me then.. :)
Francmic000
omg you work too hard. Staying up late, posting news hours after its release, you’re a beast.
Mercurycc
They had too many leaks for 680. Give them some time to build the quota for GK110.
BestJinjo
That’s his hobby, not his full time job…..you serious? I don’t see you managing a videocard website such as this one!
BestJinjo
What are you talking about? You have benchmarks to back up your claims? Don’t link MSI Afterburner memory allocation since that’s not proper GPU memory usage. GTX680 can play SKYRIM across 3 1080P screens faster than a single HD7970 3GB. There are practically no games at 2560×1600 P where 2GB VRAM is a bottleneck for the GTX680. More importantly, HD7950 has a 30% deficit in performance to the 680, which means that 670 should easily defeat it. Considering GTX680 is selling like hot-cakes with 2GB of VRAM against a $450-500 HD7970 3GB, $100 cheaper card with 15% less performance is going to make 7950 3GB a tough sell. Besides, for people running 8K textures and using 3 high resolution screens, a single HD7970/GTX680 isn’t enough anyway.
Based on GPU statistic, there are only 4% of GPU buyers who buy graphics card in the $400+ segment, of which you can imagine only a fraction of these use multiple GPUs, of these only a fraction use multiple GPUs + multiple monitors. Even in tests with GTX580 1.5GB vs. 3GB version by hardware. fr, there is practically no difference in performance.
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BestJinjo
That list is hardly relevant. Modern game engines such as Frostbyte 2.0 can pre-cache textures into video memory. That’s not the same as a game actually requiring ~ 2.3GB of VRAM. BF3 runs perfectly fine on 1.5GB cards, but if you use a card with 3GB of VRAM, it’ll use more. This is no different than the dynamic DDR system memory allocation performed by Windows Vista and Windows 7.
A real VRAM bottleneck generally results in half the framerates lost, OR even worse frame rates go to a slideshow 2-5 fps. Since GTX570 1.28GB defeats HD6950 2GB in Battlefield 3 games, it’s clear that it cannot be inferred that what memory usage is in MSI Afterburner is what’s “Required” by the game engine. Furthermore, certain games have texture leaks that are fixed with subsequent patches. Shogun 2 Total War is one of those games. The texture leak was investigated by Hardware Canucks and found to have been fixed with subsequent drivers. Check their forums.
Muta_gwef
I suppose you could ignore the VRAM stats and I get what you are saying 1.5GB card is not going to be a limitation in certain games at certain resultions but he didn’t describe that situation he only gave a question of whether the 660Ti would be a limitation at 5760×1080. I guess you could make an argument that it might not be but you actually went on to say a single 680/7970 wouldn’t be enough! Ignore MSI afterburner for a second (which noone referenced but you) and look at the hi-res benchmarks for the 680/7970, you will see the 680s architectural advantage diminish because because it is VRAM limited – that’s all the info you need. Rather than creating figures out of thin air for a card that has not yet been released I suggested he wait for reviews and make his own mind up!
Francmic000
I can’t compliment him because he has no obligation to work? Seems unreasonable.
Francmic000
Stirred the bee’s nest on this one. So youre saying a gtx570 6gb(if such a thing ever were to exist) would perform similarly if not the same?
… and your opinions of the gtx680 2gb vs gtx680 4gb? The exact same?
Francmic000
O… you thought that was sarcasm? Not everyone is a sarcastic twat on the internet. This guy really does a great job.
BestJinjo
GTX570 6GB would be a waste since by the time the extra VRAM would be beneficial, the GPU would run out of power. Sure, maybe in 1-2 years there will be games that actually use > 2GB of VRAM, but right now one generally need multiple monitors or some insane mods to achieve exceed that. So far I am not aware of any game at 2560×1600 4AA that’s actually shows a significant increase in performance from 2GB –> 3GB or 4GB. Actually the preliminary benchmarks on this very website shows that GTX680 4GB was just 4% faster on average. Is it measurable? Sure, but is 2GB a bottleneck? I mean if you are planning on spending $1000+ on GPUs, I’d get dual 7970s or dual GTX680 4GB since chances are you will either keep them for a while or are using multiple monitors where 2GB will become a bottleneck. For single monitor users, 2-4GB should be basically the same performance.
If next year games such as Crysis 3 start to push the limits more, enthusiasts will have upgraded to GTX780/HD8000 series anyway. :) But if you tend to keep your cards for a while (i.e.., 3-4 years), definitely get the 3-4GB card.
BestJinjo
Good question. I think I’d be more concerned that GTX660Ti is simply not fast enough to play games at 5760x1080P even if it had 6GB of VRAM. GTX660Ti may be only as fast as an HD7850. Would you want to play games on 3 monitors with just a 7850? Maybe older games but SKYRIM, Crysis 2, Batman AC, upcoming GTAV, Metro 2033, etc? I think people actually playing modern games on 3 monitors will need something much more powerful than a single 660Ti.
Muta, as to your point why GTX680′s performance loss occurs at higher resolutions, it is NOT because of 2GB VRAM limitation but because it only has 192 GB/sec memory bandwidth to 264 GB/sec bandwidth of the 7970. If 2GB VRAM limit was exceeded, the card would start texture swapping over PCIe bus, which would half the framerates or result in jerkiness. Instead, benchmarks show that GTX680 simply loses the performance advantage (or HD7970 catches up).
I agree with you that we should wait for reviews.
BestJinjo
So if you had an 80 year old grandmother and a gentlemen helped to guide her across a pedestrian cross walk should she have tripped on her cane, you wouldn’t have thanked him becase he didn’t have an obligation to perform such “work”?
VC does an amazing job!! Even if this isn’t his real job, it doesn’t mean his website doesn’t warrant compliments!
In fact, complimenting someone for doing their job well is not a compliment. If is their job, they should do it well. Doing something nice because it’s not your job is actually worthy of real compliments :)
Francmic000
Reply lim XD(in response to below),
This whole discussion is about 660ti sli.If it was memory bandwith wouldnt it show linear fps across the board in relation to 7970 at different resolutions and not a large dip at the high end?
Francmic000
“4% faster on average” was across all resolutions on old games. Those settings didn’t surpass the 2gb buffer.
Francmic000
Lets get straight to the matter, I think the texture cache has an significant impact on fps. That’s the base of the discussion right?
http://profile.yahoo.com/GOWEV53IHTBLLTFC6WH3OBENBQ Sharoon
Hey guys, i would be grateful if our can give me some advice. I have 3 years old pc with specs:
intel core 2 quad Q8200 2.4ghz
geforce 9800gtx+
8GB DDR2
1TB 7200rpm sata2
500GB 7200rpm sata2
asus p5ql pro
motherboard does not support slr
PSU 550w.
I was hoping to upgrade to a 670. However i am not sure if it is viable with my outdated hardware, since there is no doubt that the processor will bottleneck the gpu. I know any upgrade from the previous gpu is desirable but is 670 the way to go.
Any help would be really appreciated. Thanks.
Francmic000
With the Q8200, it seems quite a stretch. I’d even go as far to say you’re prolly looking for something half(maybe less) as capable to touch your current systems ceiling across a broad range of games.
Statquoyo
What would you guys get (assuming specs are correct)…a 7970 or a 670?
BestJinjo
Let’s wait for benchmarks. Considering HD7970 overclocks rather well and keeps up with an overclocked 680, I’d get an HD7970 for $450 over the $400 670. If you don’t care for overclocking though and want lower power consumption, GTX670 will be a good choice. My guess is GTX670 will come in between 7950 and 7970 in performance. Also, if you are gaming at 2560×1600, HD7970 OC will be better.
BestJinjo
With your CPU, anything beyond HD6870 is a waste of $. For $140-150, HD6870 or even $120 HD6850 are the best GPUs for your system. Otherwise, upgrade your CPU to Core i5 at minimum if you want to enjoy a GTX670 style performance.
BestJinjo
No, sorry if we confused you. The point is that if some games show that they are using 2.3GB of VRAM in say MSI Afterburner, it doesn’t mean the game actually bottlenecks a GPU that has less than 2GB of VRAM. Some games such as BF3 will pre-cache the textures if a GPU has more VRAM. The main point being discussed is whether or not getting a GTX660 Ti SLI is a good idea. I am saying it’s not a good idea but GTX680 2GB is plenty sufficient for most games right now on a single monitor without running into a 2GB VRAM bottleneck.
What was linked is a list of games that show to be “using” more than 2GB of VRAM, to which I addressed that they are simply reallocating the textures by precaching them and that very few games actually need more than 2GB of VRAM. In situations where the card becomes VRAM limited like 8800GTS 320 mb or 8800GT 256mb did, frames will plummet in half or even to 2-5 fps slideshow. Therefore, when people are just implying that because they measured VRAM usage with their HD7970 3GB at say 2.3GB of VRAM in BF3 or SKYRIM that a 2GB card will be bottle-necked, it’s not necessarily true since GTX680 will just reduce the amount of texture pre-cache. That’s not the same as saying that GTX680 will be bottlenecked to the point of unplayable.
BestJinjo
I found this link to Nvidia’s UK website for live stream but I can’t access the server!!
At 7:30PM April 28th (PDT), NVIDIA will be making a special announcement at GeForce LAN / NVIDIA Gaming Festival (NGF) 2012 in Shanghai, China. http://www.geforce.co.uk/whats-new/articles/its-coming-countdown/
BestJinjo
Ok found an alternative link to tonight’s live Event by NVidia at Hardware Canucks:
http://www.hardwarecanucks.com/forum/video-cards/53751-live-stream-nvidia-geforce-announcement-watch-here.html
Francmic000
There we got to the bottom of it. I was just pondering whether that +.5gb cache space available would trump the general performance overhead 660ti sli will surely have over the 680 in 5760x1080p. Yep, def only time will tell.
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Muta_gwef
You always get a lot of these questions whenever new GPUs come out and in one way the right answer is: “you need a new CPU” Of course that is fine but in this case its not just a CPU, you would need a whole platform ugrade as well, including motherboard and RAM and, without knowing a bit more detail about the quality of the PSU, perhaps that as well (wattage would be ok in theory but bear in mind a cheap 550W PSU might not be able to cope with that or have the strength in the rail(s). So we realy need to know if you have the budget for getting a whole revamp, if you do then great, get a Z77 motherboard, 8GB of DDR3 and a i5 2500K + 670. However, if you haven’t got the budget for that, then as people suggest, your money might be better spent on a lower performance card. The other option is to try to get a hefty overclock on your Q8200, which would alleviate some of the bottleneck, in which case you could get the 670 and use your system as a stop-gap until you have the budget to upgrade those other parts. You really need to weigh your budget against those factors and decide from there.
Muta_gwef
So essentially we agree :P If you going for 3 monitors at 1080p then 660 sli probably isn’t going to cut it but that’s just a theory at the minute so I would say wait and see. It may well be you only have the money for a 660 and you want to get another later, but generally if you’re getting a multi-monitor setup I would imagine you have the funds for something high-end, in which case 2 x mid-range cards isn’t really the appropriate choice.
http://profile.yahoo.com/GOWEV53IHTBLLTFC6WH3OBENBQ Sharoon
Thanks for everyone’s reply. Unfortunate I do not have enough money to upgrade all the components until I graduate from uni. After that I will embark on building my pc with no expense spared. But that is 3 years away so need to make do with what I have.
Which nvidia card would you guys suggest for the current pc?
Francmic000
Its gotta be the 550ti. Why so intent on nvidia, amd has some good offerings in that range aswell. If you werent so specific to nvidia, I’d suggest amd 6770/5770(its the same thing, just a rebrand). If you are gonna keep the system for 3 years yet still, you might consider if kepler is gonna have some offerings in that price bracket in the future and hold out.
Francmic000
woot, this article just got sourced for an article in fudzilla. gj
Seans_life
for the people that are saying the guy shouldn’t get a better card because he has an older quad you would be wrong as the better card will allow him to use PhysX with better frame rate, will provide DX 11 features and will just be a better card than he has and if he plays at higher rezs he will see better performance also
Seans_life
upgrade to a new card as u will get better frame rates in games (esp in games with PhysX if you play with that on sometimes … also better fps at higher rezs … many games gpu dependant these days)
Francmic000
Of course a gtx680 will give him the best performance. Staying within reason is important though.
http://profile.yahoo.com/GOWEV53IHTBLLTFC6WH3OBENBQ Sharoon
I wouldn’t mind spending £50 more and get a 660ti. I am not an expert but how much is cpu bottleneck an issue with playing games.
http://profile.yahoo.com/GOWEV53IHTBLLTFC6WH3OBENBQ Sharoon
Would you suggest that 660ti is a better option than being too ambitious or going too low. Would there be a significant advantage with a 670 even with a bottleneck cpu?
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russell612
The GTX 600 Ti has the same amount of CUDA cores as the GTX 670 if I am not mistaken.

NVIDIA Launches GeForce GTX 690 For $999 Gigabyte Geforce GTX 670 Listed For $415

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GeForce GTX 660 Ti and GTX 670 Specification Leaked

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