In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 650 Ti Power Edition OC 1GB are significantly better than the Nvidia GeForce GTX 650 Power Edition OC 1GB.

The GTX 650 has a 131 MHz higher core clock speed than the GTX 650 Ti, but the GTX 650 Ti has 32 more Texture Mapping Units than the GTX 650. As a result, the GTX 650 Ti exhibits a 27.6 GTexel/s better Texture Fill Rate than the GTX 650. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 650 has a 131 MHz higher core clock speed than the GTX 650 Ti and the same number of Render Output Units. This results in the GTX 650 providing 2.1 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 650 Ti was released less than a year after the GTX 650, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GTX 650 Ti Power Edition OC 1GB and the GeForce GTX 650 Power Edition OC 1GB have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GTX 650 Ti has 6.4 GB/sec greater memory bandwidth than the GTX 650, which means that the memory performance of the GTX 650 Ti is marginally better than the GTX 650.

The GeForce GTX 650 Ti Power Edition OC 1GB has 768 Shader Processing Units and the GeForce GTX 650 Power Edition OC 1GB has 384. However, the actual shader performance of the GTX 650 Ti is 763 and the actual shader performance of the GTX 650 is 432. The GTX 650 Ti having 331 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 650 Ti delivers a noticeably smoother and more efficient experience when processing graphical data than the GTX 650.