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 AMD Radeon HD 5770 1024MB.

The GTX 650 Ti has a 143 MHz higher core clock speed and 24 more Texture Mapping Units than the HD 5770. This results in the GTX 650 Ti providing 29.6 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 143 MHz higher core clock speed than the HD 5770 and the same number of Render Output Units. This results in the GTX 650 Ti providing 2.3 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 over three years more recently than the HD 5770, and so the GTX 650 Ti is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the HD 5770 when running the latest games.

The GeForce GTX 650 Ti Power Edition OC 1GB and the Radeon HD 5770 1024MB 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 9.6 GB/sec greater memory bandwidth than the HD 5770, which means that the memory performance of the GTX 650 Ti is marginally better than the HD 5770.

The GeForce GTX 650 Ti Power Edition OC 1GB has 768 Shader Processing Units and the Radeon HD 5770 1024MB has 800. However, the actual shader performance of the GTX 650 Ti is 763 and the actual shader performance of the HD 5770 is 340. The GTX 650 Ti having 423 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 HD 5770.

The GTX 650 Ti transistor size technology is 12 nm (nanometers) smaller than the HD 5770. This means that the GTX 650 Ti is expected to run slightly cooler and achieve higher clock frequencies than the HD 5770.

The Radeon HD 5770 1024MB requires 108 Watts to run but there is no entry for the GTX 650 Ti. We would recommend a PSU with at least 450 Watts for the HD 5770, but we do not have a recommended PSU wattage for the GTX 650 Ti.