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October 24th, 2012

NVIDIA Announces GeForce GTX 680MX and GTX 675MX With The New iMac

NVIDIA Announces GeForce GTX 680MX and GTX 675MX With The New iMac geforce 600
NVIDIA has quietly launched its new GeForce GTX 600 Series mobile graphics cards based on Kepler architecture. Previously announced GeForce GTX 680M has been dethroned by new MX model.

The new GeForce GTX 680MX and GTX 675MX are equipped with more CUDA cores than their M variants. GeForce GTX 680MX is now considered the fastest mobile GPU, since it has full 1536 CUDA cores known from desktop GTX 680 with Kepler GK104. Also the GTX 675MX and GTX670MX have two-and-half times more cores than GTX 670M — 960.

Both GPUs feature higher memory clocks, while retaining the original configuration. GeForce GTX 680MX and GTX675MX support GDDR5 memory across 256-bit interface, while the GTX 670MX is crippled to 192-bit (same as GTX670M). Interestingly the new GTX675MX is operating only with PCI-Express 2.0 bus (only GTX680xx models have PCI-E 3.0 support).

NVIDIA has announced that these two processors will be installed with the new 27-inch iMacs.

The new 27-inch iMac offers the GeForce GTX 660M as its base GPU, with even faster GeForce GTX 675MX or GeForce GTX 680MX GPUs available. The 21.5-inch model comes with the GeForce GT 640M GPU, with an available upgrade to the GeForce GT 650M GPU.

The new 27-inch iMac with GTX675MX and GTX680MX will be available in December, starting from $1799.

NVIDIA Announces GeForce GTX 680MX and GTX 675MX With The New iMac geforce 600 NVIDIA Announces GeForce GTX 680MX and GTX 675MX With The New iMac geforce 600

GeForce Mobile GPUs GTX 680MXGTX 680MGTX 675MXGTX 675MGTX 670MXGTX 670M
CUDA Cores15361344960384960336
GPU Clock720 MHz720 MHz600 MHz620 MHz600 MHz598 MHz
Memory Clock2500 MHz1800 MHz1800 MHz1500 MHz1400 MHz1500 MHz
Memory InterfaceGDDR5 256-bitGDDR5 256-bitGDDR5 256-bitGDDR5 256-bitGDDR5 192-bitGDDR5 192-bit
Memory Bandwidth160.0 GB/s115.2 GB/s115.2 GB/s96.0 GB/s67.2 GB/s72.0 GB/s
Texture Fillrate92.2 (billion/s)80.6 (billion/s)48.0 (billion/s)39.7 (billion/s)48.0 (billion/s)33.5 (billion/s)
PCI-E3.02.0
SLI2-way

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  • BestJinjo

    Wow, there is a ginormous gap between a GTX680M/MX and GTX675M/MX parts. With only 5 being the difference in the name, to the casual observer the GTX675 may have seemed to be 90% as good but boy it’s like world’s apart. Really impressed with NV’s mobile Kepler parts. Wish NV won the GPU designs for next generation consoles as Kepler would have been perfect from a performance/watt perspective.

  • Nigel Harris

    AMD/ATI has more experience with making/designing console gpu solutions. Gamecube with its artx flipper (now owned by AMD/ATI) was a very good custom console chip. Nvidia for one reason or another blew it with MS and Sony.

  • emyyhh

    Mobile GPU’s have really advanced now that <45nm manufacturing processes have been achieved. I dread to think what a 680mx would cost though, given that a 'normal' desktop 680 is £350+

  • BestJinjo

    The MX branding on NV’s part is odd. MX always used to mean budget parts like GeForce 4 MX. NV makes good GPUs but their marketing/branding is horrendously misleading. I think GTX680M already had a $250-300 price premium over 7970M despite being just 15% faster. NV definitely doesn’t sell their mobile GPUs on value.

  • BestJinjo

    I think it has also to do with MS getting ripped off by NV20 during Xbox days and MS hated that deal. Also, I bet when AMD won the next generation designs, NV had nothing to show console markers as Fermi was hot and power inefficient. HD4000-6000 series were all more efficient than NV’s offerings and I bet these console design wins were secured before NV could show them how great Kepler is. The other point and probably most important is that NV hates dropping prices. I bet for the same speed GPU, AMD offered a much better deal. Just look at how much NV charges for their mobile GPUs. I bet with NV’s pricing strategy, they’d be lucky to get anything faster than GTX650M into a console. What I was saying in theory, Kepler mobile is actually better than HD7000 series but knowing AMD’s aggressive pricing, hopefully we’ll get a GPU at least equivalent to HD7850 2GB in a PS4 / next xbox console (that’s about HD7950M).

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  • zeropercenthotgas

    Don’t forget GPU compute in HD 7XXX. It could potentially be very useful to next generation game programming at the expense of a bit more power and heat.

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  • http://www.facebook.com/quinnfitz Quinn FitzGerald

    Don’t forget what happened with Sony and the PS3…. :/

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