In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 560 Ti DirectCUII TOP 2GB are marginally better than the Nvidia GeForce GTX 560 Ti Gigabyte OC 1GB Edition.

The GTX 560 Ti and the GTX 560 Ti have both the same core clock speed and the same Texture Fill Rate. 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 Ti and the GTX 560 Ti have both the same core clock speed and the same Pixel Fill Rate. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 560 Ti was released less than a year after the GTX 560 Ti, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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

The GTX 560 Ti has 0.3 GB/sec greater memory bandwidth than the GTX 560 Ti, which means that the memory performance of the GTX 560 Ti is marginally better than the GTX 560 Ti.

Both the GeForce GTX 560 Ti Gigabyte OC 1GB Edition and the GeForce GTX 560 Ti DirectCUII TOP 2GB have 384 Shader Processing Units. Having the same number of SPUs and using the same architecture means that the performance they offer can be compared by looking at the memory bandwidth, Texture and Pixel Rates. In this case, the two GPUs have extremely similar stats, so any gaming performance difference would most likely be negligible.