In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 750 Zotac Thunderbolt 1GB Edition are noticeably better than the Nvidia GeForce GTX 650 Ti Gainward 1GB Edition.

The GTX 750 has a 301 MHz higher core clock speed than the GTX 650 Ti, but the GTX 650 Ti has 32 more Texture Mapping Units than the GTX 750. As a result, the GTX 650 Ti exhibits a 20.1 GTexel/s better Texture Fill Rate than the GTX 750. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 750 has a 301 MHz higher core clock speed than the GTX 650 Ti and the same number of Render Output Units. This results in the GTX 750 providing 4.9 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 750 was released over a year more recently than the GTX 650 Ti, and so the GTX 750 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 650 Ti.

The GeForce GTX 750 Zotac Thunderbolt 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 750 Zotac Thunderbolt 1GB Edition and the GeForce GTX 650 Ti Gainward 1GB Edition are the same, which means the GTX 750 and the GTX 650 Ti have equal limitations when it comes to graphical data transfer.

The GeForce GTX 750 Zotac Thunderbolt 1GB Edition has 512 Shader Processing Units and the GeForce GTX 650 Ti Gainward 1GB Edition has 768. However, the actual shader performance of the GTX 750 is 912 and the actual shader performance of the GTX 650 Ti is 713. The GTX 750 having 199 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 750 delivers a marginally smoother and more efficient experience when processing graphical data than the GTX 650 Ti.

The GeForce GTX 750 Zotac Thunderbolt 1GB Edition requires 55 Watts to run but there is no entry for the GeForce GTX 650 Ti Gainward 1GB Edition. We would recommend a PSU with at least 300 Watts for the GTX 750.