ASUS AH2600PRO vs AH3450

Pixel fillrate parameter shows how many pixels a graphics unit can draw on screen and off screen. Higher numbers allow cards to support higher maximum display resolutions and frame rates. The maximum pixel fillrate is defined as the number of ROPs, multiplied by graphics clock. Since both characteristics are equal between graphics cards, their pixel fillrate is also identical.

Because two graphics cards runs at the same frequency, and the AH2600PRO card has twice as many TMUs, it has higher texture fillrate. Better texture fill rate means that the graphics card 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.

Single Precision performance is convenient for figuring out card's maximum speed in programs, that process primarily single-precision floating point data. The performance is measured in billions of Floating Point Operations Per Second, or GFLOPS. As a rule, the more CUDA cores or stream processors the graphics card has, and the the faster they run at, the higher Single Precision performance will be. The ASUS AH2600PRO has a massive lead here. Higher single-precision performance number means the GPU 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.

Memory bandwidth parameter tells how much memory (in Gigabytes) the graphics card can read from or write to dedicated memory per second. GPUs 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 memory interface width all affect the bandwidth value. In this case, the AH2600PRO graphics card offers higher memory clock and wider bus. As a result, it has considerably higher memory bandwidth.