AMD Radeon HD 7850 vs ASUS GeForce GTX 750 Ti (GTX750TI-2GD5)

Despite of lower graphics frequency, the AMD Radeon HD 7850 graphics card comes with significantly better pixel fill rate, thanks to twice as many ROPs. Having higher pixel fillrate allows the graphics card to draw more pixels on screen and off screen, which is beneficial for some 3D effects in games, or when playing at higher display resolutions.

Even so its graphics clock is slower, the Radeon HD 7850 graphics card has many more TMUs (Texture Mapping Units), resulting in better texture fill rate. Having better maximum texture fill rate allows the GPU to apply more textures, utilize more complex 3D effects for each textured picture element, or render 3D image / game environment at higher resolutions without loss of detail.

Maximum Single Precision performance illustrates how many single-precision floating point operations the graphics card can execute per second. This performance is measured in billions of Floating Point Operations Per Second, or GFLOPS. As a rule, the more CUDA cores or stream processors the GPU has, and the the faster they run at, the better Single Precision performance will be. The AMD Radeon HD 7850 graphics unit has an edge here. Higher single-precision performance number means the graphics card will perform better in general computing applications. Since CUDA cores or stream processors are also used as vertex and geometry shaders for 3D image generation, higher performance is also beneficial to games.

Maximum Double Precision performance is similar to the Single Precision performance, except that it applies to double-precision (64-bit) floating point operations. This characteristic is unimportant to games performance because games do not use double-precision arithmetics. The Radeon HD 7850 graphics card is faster at processing 64-bit floating-point numbers.

Memory bandwidth parameter tells how much memory (in Gigabytes) the GPU can read from or write to dedicated memory per second. 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. The bandwidth depends on memory type, speed, and memory interface width. Specifically, the Radeon HD 7850 offers wider memory bus. As a result, it has more memory bandwidth.