In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 650 Ti Zotac 1GB Edition are marginally better than the Nvidia GeForce GTX 650 Ti Gainward 1GB Edition.

The GTX 650 Ti has a 13 MHz higher core clock speed and the same number of Texture Mapping Units as the GTX 650 Ti. This results in the GTX 650 Ti providing 0.8 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 650 Ti has a 13 MHz higher core clock speed than the GTX 650 Ti and the same number of Render Output Units. This results in the GTX 650 Ti providing 0.3 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 Ti, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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

The memory bandwidth of the GeForce GTX 650 Ti Zotac 1GB Edition and the GeForce GTX 650 Ti Gainward 1GB Edition are the same, which means the GTX 650 Ti and the GTX 650 Ti have equal limitations when it comes to graphical data transfer.

Both the GeForce GTX 650 Ti Zotac 1GB Edition and the GeForce GTX 650 Ti Gainward 1GB Edition have 768 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 GTX 650 Ti has 0.8 GTexel/s better Texture Fill Rate and 0.3 GPixel/s better Pixel Fill Rate, but the has GB/sec greater memory bandwidth. Although the GPUs are very similar in performance, the GTX 650 Ti takes the edge.

We would recommend a PSU with at least 450 Watts for the GTX 650 Ti.