Overclocking the GTX 460s
In the run-up to the launch, NVIDIA had been making positive noises about the overclocking potential of the GF104 Fermi cards. Grabbing the EVGA card first and coaxing out extra frequency via the bundled Precision tool, we managed to attain a stable speed of 850MHz core and 4,300MHz memory, up from the default 675MHz/3,600MHz, achieved with no increase in core voltage.As explained previously, we had to swap the ZOTAC GeForce GTX 460 1,024MB card out for a reference model at the last minute. Bearing in mind that it shipped with a BIOS that had a slight boost in voltage - 1.03V vs. 1.0V for ZOTAC - the final stable speed was an impressive 875MHz core and 4,320MHz memory.
We then re-ran Aliens vs. Predator and Crysis Warhead at 1,920x1,080 to see what effect they would have on results.
The EVGA GeForce GTX 460 768MB leapfrogs the GTX 465 and breaks the 30fps barrier. The NVIDIA GTX 460 1,024MB card, meanwhile, snaps at the heels of a stock-clocked GTX 470.
Crysis Warhead is more partial to an increase in frequencies. The larger framebuffer card gets very close to a Radeon HD 5870.
