In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 560 Galaxy GC 2GB Edition are marginally better than the Nvidia GeForce GTX 460 PNY 1GB OC Edition.

The GTX 560 has a 85 MHz higher core clock speed and the same number of Texture Mapping Units as the GTX 460. This results in the GTX 560 providing 4.8 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 560 has a 85 MHz higher core clock speed than the GTX 460 and the same number of Render Output Units. This results in the GTX 560 providing 2.7 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 560 was released over a year more recently than the GTX 460, and so the GTX 560 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 460.

The GTX 560 has 1024 MB more video memory than the GTX 460, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 560 also has superior memory performance overall.

The GTX 560 has 9.9 GB/sec greater memory bandwidth than the GTX 460, which means that the memory performance of the GTX 560 is marginally better than the GTX 460.

Both the GeForce GTX 560 Galaxy GC 2GB Edition and the GeForce GTX 460 PNY 1GB OC Edition have 336 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the GTX 560 is 571 and by the GTX 460 is 514. Knowing that the shader performance of the GTX 560 is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The GeForce GTX 560 Galaxy GC 2GB Edition requires 150 Watts to run but there is no entry for the GeForce GTX 460 PNY 1GB OC Edition. We would recommend a PSU with at least 450 Watts for the GTX 560 and a PSU with at least 450 Watts for the GTX 460. The two GPUs have been recommended a PSU with the same amount of wattage. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.