In terms of overall gaming performance, the graphical capabilities of the HD 6850 and the HD 6850 are equal.

The HD 6850 and the HD 6850 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 6850 and the HD 6850 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.

Both the Radeon HD 6850 Sapphire 1GB Edition and the Radeon HD 6850 XFX were released at the same time, so are likely to be quite similar.

The Radeon HD 6850 Sapphire 1GB Edition and the Radeon HD 6850 XFX 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 Radeon HD 6850 Sapphire 1GB Edition and the Radeon HD 6850 XFX are the same, which means the HD 6850 and the HD 6850 have equal limitations when it comes to graphical data transfer.

Both the Radeon HD 6850 Sapphire 1GB Edition and the Radeon HD 6850 XFX have 960 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.

We would recommend a PSU with at least 500 Watts for the HD 6850 and a PSU with at least 500 Watts for the HD 6850. 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.