Although there were quite a few rumors leading up to AMD’s Radeon 7000 series launch, the Internet has been very quiet on the greener side of the graphics market. Finally; however, we have some rumors to share with you on the Nvidia front. As always, take these numbers with more than your average grain of salt.

Specifically, EXP Review managed to uncover two charts that supposedly detail specifics about a range of GeForce 600 series Kepler cards from the number of stream processors to the release date. Needless to say, it’s a lot of rumored information to take in all at once.

Anyway, without further adieu, let’s dive into the two leaked charts.

Model Code Name Die Size Core Clock (TBD) MHz Shader Clock (TBD) GHz Stream Processors SM Count ROPs Memory Clock (effective) GDDR5  Bus Width Memory Bus Width
GTX690 GK110x2 550mm2 ~750 ~1.5 2×1024 2×32 2×56 4.5 GHz 2x448bit 2x252GB/s
GTX680 GK110 550mm2 ~850 ~1.7 1024 32 64 5.5 GHz 512bit 352GB/s
GTX670 GK110 550mm2 ~850 ~1.7 896 28 56 5 GHz 448bit 280GB/s
GTX660Ti GK110 550mm2 ~850 ~1.7 768 24 48 5 GHz 384bit 240GB/s
GTX660 GK104 290mm2 ~900 ~1.8 512 16 32 5.8 GHz 256bit 186GB/s
GTX650Ti GK104 290mm2 ~850 ~1.7 448 14 28 5.5 GHz 224bit 154GB/s
GTX650 GK106 155mm2 ~900 ~1.8 256 8 24 5.5 GHz 192bit 132GB/s
GTX640 GK106 155mm2 ~850 ~1.7 192 6 16 5.5 GHz 128bit 88GB/s


From the chart above, we can see the entire lineup of Kepler cards from the NVIDIA GTX 640 to the dual GPU GTX 690.  The die size in the higher end GeForce cards is approximately 50% larger than that of the AMD Radeon HD 7970, but not much bigger than that of the GTX 580.  If only we knew the TDP of these cards!  In the next chart, we see alleged performance comparison versus the AMD competition.

Model Bus Interface Frame Buffer Transistors (Billion) Price Point Release Date Performance Scale
GTX690 PCI-E 3 x16 2×1.75 GB 2×6.4 $999 Q3 2012  
GTX680 PCI-E 3 x16 2 GB 6.4 $649 April 2012 ~45%>HD7970
GTX670 PCI-E 3 x16 1.75 GB 6.4 $499 April 2012 ~20%>HD7970
GTX660Ti PCI-E 3 x16 1.5 GB 6.4 $399 Q2/Q3 2012 ~10%>HD7950
GTX660 PCI-E 3 x16 2 GB 3.4 $319 April 2012 ~GTX580
GTX650Ti PCI-E 3 x16 1.75 GB 3.4 $249 Q2/Q3 2012 ~GTX570
GTX650 PCI-E 3 x16 1.5 GB 1.8 $179 May 2012 ~GTX560
GTX640 PCI-E 3 x16 2 GB 1.8 $139 May 2012 ~GTX550Ti


If these numbers hold true, NVIDIA will handily beat the current AMD offerings; however, I would wait for reviews to come out before making any purchasing decisions.  One interesting aspect is the amount of GDDR5 memory.  It seems that NVIDIA is sticking with 2GB frame buffers (or less) per GPU while AMD has really started upping the RAM.  It will be interesting to see how this affects gaming in NVIDIA Surround and/or at high resolutions.

What do you guys think about these numbers, do you think Kepler will live up to the alleged performance scale figures?