Nvidia's upcoming Kepler lineup has been fully detailed, with specifications including clock speeds, memory totals and bus bandwidth all revealed.
If we begin this whistlestop tour of Nvidia's next generation graphics cards at the top, there's the twin chip GTX 690. This won't be released until sometime in Q3 this year, but it will pack a whopping 2x1024 stream processors, a shader clock of around 1.5GHZ and a core clock of 750MHZ. In terms of memory there's a bus width of 2x252GBps with an effective memory clock of 4.5GHZ. Overall it will feature 2 X 1.75GB of GDDR5. Considering AMD's top end single chip card already has 3GB, will we see Nvidia packing 3.5GB vs it's opposite number packing 6GB?
Bumping down the list we have the GTX 680 and 670 both making use of the same GK110 core as the twin chip variant, They both feature the same 850MHZ core clock and 1.7GHZ shader clock. However, the bigger of the two has more stream processors, with each having 1024/896 respectively. While both are set to debut at the same time in early April, the 680 will come with a memory clock of 5.5GHZ (effective) and a memory bus width of 352GBps. Comparatively, the 670 is 5GHZ and 280GBps.
A quick bit of pricing info, the GTX 680 is set to come in at $650, which puts it at $100 more than the competitor Radeon card, the AMD HD 7970. It'll be interesting to see how AMD responds to the launch of these GPUs. Perhaps it will lower prices further to remain more competitive, or keep the current setup. Chances are it will depend on real world Geforce 600 series performance.
The mid-range GK104 core is found within the GTX 660 and 560Ti. For core clocks, they are 900MHZ/850MHZ each, with only a 100MHZ shader clock difference. The GTX 660 hits 1.8GHZ, while the GTX 650 reaches just 1.7GHZ. Running with memory, the clock speeds for them will be 5.8GHZ/5.5GHZ with memory bus widths of 186GBps/154GBps respectively.
Down at the budget end there are the GTX 650 and GTX 640, both making use of the GK106 core. The clock speeds for the core are the same for the 660/560Ti cards, though stream processors are slightly less. Effective memory clock for both is 5.5GHZ, with memory bus bandwidth at 132GBps/88GBps respectively.
Most of these cards will be released in early April/May, with the rest coming towards the end of Q2 and near the start of Q3.
Along with the leak over at EXPreview, there are claims of how these new cards will compare to previous generations and current AMD hardware. The GTX 680 will apparently perform almost 50 per cent better than the HD 7970. This is a bold claim as AMD's new 7000 series cards made big performance gains over the past generations already. There's also a 1GB difference in memory at the top end, suggesting the Radeon cards will have an advantage in some benchmarks.