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August 21st, 2012

NVIDIA Launches GeForce GTX 660 For OEMs, Features 1152 CUDA Cores

NVIDIA Launches GeForce GTX 660 For OEMs, Features 1152 CUDA Cores geforce gtx 660
UPDATE: Ok I had to rewrite this post, because NVIDIA posted wrong specs.

NVIDIA has quietly added a new graphics cards to their line-up. The non-Ti version of GTX 660 Ti has appeared on NVIDIA pages with all the specifications we could expect (well almost).

First of all, the non-Ti variant will has the same reference design as GTX 670 and GTX 660 Ti. Secondly it looks like a GK104 based GPU, but this cannot be verified at the moment. The GPU they used has 1152 CUDA Cores, which is 192 less than GTX 660 Ti and GTX 670. So the GPU is missing two SMXs. Also what was earlier said in numerous leaks, card features 1.5 GB or 3GB memory (there will be two variants). But it also utilizes 192-bit memory interface. The memory bandwidth was measured at 134 GB/s — the memory is down-clocked to 5.8 GHz.

The base clock is 823 MHz, while the boost clock is set to 888 MHz.

Card consumes up to 130W (TDP), which is lower than GTX 660 Ti (150W). The non-Ti variant of GTX 660 requires one 6-pin power connectors. In comparison to other high-end Kepler graphics cards, this one will only support 2-way SLI configuration.

The GeForce GTX 660 Ti 1.5/3GB is available with ACER Predator and Dell Alienware gaming desktops. NVIDIA has not yet added the card to their performance chart so it’s a mystery how it performs.

Official launch for retail market should take place in September.

Features

3D Vision, CUDA, DirectX 11, PhysX, SLI, TXAA, FXAA, Adaptive VSync, GPU Boost

NVIDIA GeForceGTX 660GTX 660 TiGTX 670GTX 680
GPUGK10xGK104GK104GK104
CUDA Cores1152134413441536
Memory1.5/3 GB GDDR52/3 GB GDDR52/4 GB GDDR52/4 GB GDDR5
Memory Bandwidth134 GB/s144 GB/s192 GB/s192 GB/s
Memory Interface192-bit192-bit256-bit256-bit
Base Clock823 MHz915 MHz915 MHz1006 MHz
Boost Clock888 MHz980 MHz980 MHz1058 MHz
Effective Memory Clock5808 MHz6008 MHz6008 MHz6008 MHz
TDP130 W150 W170 W195 W
Power Connectors1 x 6-pin2 x 6-pin2 x 6-pin2 x 6-pin

Thanks mquu for a tip

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  • Gytis

    gtx 680 56 bit?

  • zeus

    gk106…could it be?

  • not a loyal fanboy

    823mhz is good, expect a big overclocking headroom like 7850 and 7950

    how cheap is this ?

    I can’t hold on any longer, might pull the trigger on a USED 7850 anytime ~

  • http://videocardz.com/ VideoCardz.com

    It’s the OEM card. But it will likely hit retail market as well, we just don’t know when.

  • skr13

    GTX 660 should have GTX 570 performance, between 7850 and 7870.
    Price must be around $250.

  • Nigel Harris

    gtx660 oem in alienware x51

  • BestJinjo

    Sept 6th launch for this card? 6 months late behind HD7850/7870. I bet 6 months more and it’s HD8700 series with 30% more performance.

  • not a loyal fanboy

    i think the radeon 8000 series will get a significant portion of their performance improvement by having higher stock clocks. Not entirely from core design improvement..

    This means it will be less attractive for overclockers who are already pushing their current 28nm chips to 1100mhz and above.

  • LedHed

    that 134GB/s Bandwidth is going to hurt it at 1080p+ with high IQ vs the 570′s 152GB/s

    192 bit BUS vs a 320 bit

  • skr13

    Nah, not much difference at all, if you look at GTX 580 it has 192GB/s and GTX 660 TI 144GB/s, and the new Kepler card clearly is faster than GTX 580 even at 1080p+ with AA.
    The specs are: 660Ti(192) vs 580(384), so the difference/gap is bigger than 660(192) vs 570(320).
    Comparing architectures is not like 2+2=4.
    Imagine damage that Kepler will do with 384-Bit Bus :)

  • LedHed

    Kepler will have a 512bit BUS most likely, GK110. Although I’m sure they will hack it up for the lower 700 series cards. Also Fermi and Kepler have huge similarities and reviews have shown that the 660 Ti reference card is starving for more bandwidth at high resolution (look at the OC gains in reviews) with high IQ. No one said you can just look at the memory bandwidth and judge a card/architecture on that, I was just pointing out the large drop.

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  • zeus

    the memory clock should be 5608 not x808 for 134,6gb/s of bandwidth.