In terms of overall gaming performance, the graphical capabilities of the HD 7850 and the HD 7850 are equal.

The HD 7850 and the HD 7850 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 HD 7850 and the HD 7850 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 HD 7850 was released less than a year after the HD 7850, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The HD 7850 has 1024 MB more video memory than the HD 7850, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 7850 also has superior memory performance overall.

The memory bandwidth of the Radeon HD 7850 XFX Ultra OC Edition and the Radeon HD 7850 Gigabyte OC Edition are the same, which means the HD 7850 and the HD 7850 have equal limitations when it comes to graphical data transfer.

Both the Radeon HD 7850 XFX Ultra OC Edition and the Radeon HD 7850 Gigabyte OC Edition have 1024 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.

The Radeon HD 7850 Gigabyte OC Edition requires 130 Watts to run but there is no entry for the HD 7850. We would recommend a PSU with at least 500 Watts for the HD 7850 and a PSU with at least 500 Watts for the HD 7850. The two GPUs have been recommended a PSU with the same amount of wattage. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.