HIS Radeon X850PRO vs X850PRO VIVO

Since two graphics units have the same number of ROPs and the HIS Radeon X850PRO card has higher operating frequency, its pixel fillrate is a bit higher. Better maximum pixel fill rate allows more pixels to be drawn on screen per second, which results in increased GPU performance, unless there are bottlenecks in other areas, such as texture fillrate, memory bandwidth or CPU speed.

Graphics card performance in present-day games is less dependent on pixel fillrate, and more on texture fill rate. This parameter is proportional to the number of TMUs (Texture Mapping Units) and graphics clock rate. The HIS Radeon X850PRO has a very small lead here, as it runs at insignificantly higher frequency, and both graphics cards have the same number of TMUs. Better texture fill rate means that the GPU can use more sophisticated 3D effects and/or apply more textures to each textured picture element, which improves visual appearance of games and generated images.

Memory bandwidth parameter specifies how much memory (in Gigabytes) the graphics card can read from or write to dedicated memory per second. Graphics cards with higher memory bandwidth have better performance at high display resolutions, or when using large and detailed textures, and/or utilizing complex 3D effects and filters, like anti-aliasing. Memory type, speed, and width of memory interface all affect the bandwidth value. Specifically, the HIS Radeon X850PRO offers higher clocked memory. Consequently, it has slightly higher memory bandwidth.