MSI GeForce GT 620 1GB Low Profile vs NVIDIA GeForce 8800 GT

The GeForce 8800 GT has much better pixel fill rate due to greater number of ROPs, even though its graphics clock is slower. Having higher pixel fillrate allows the 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 though it has lower graphics frequency, the GeForce 8800 GT GPU comes with many more TMUs, resulting in considerably better texture fill rate. Having better maximum texture fill rate allows the graphics card to apply more textures, utilize more sophisticated 3D effects for each textured picture element, or render 3D image / game environment at higher resolutions without loss of detail.

Maximum Single Precision performance indicates how fast the graphics card is at executing applications, that make an extensive use of single-precision floating point numbers. This performance is measured in GFLOPS, or Giga (billions of) Floating Point Operations Per Second. As a rule, the more stream processors or CUDA cores the GPU has, and the the faster they operate at, the better Single Precision performance will be. The GeForce 8800 GT graphics unit has an upper hand 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.

Memory bandwidth parameter tells how much memory (in Gigabytes) the GPU 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. The bandwidth is dependent on memory type, speed, and width of memory interface. Specifically, the NVIDIA GeForce 8800 GT comes with better and higher clocked memory, and wider bus interface. Consequently, it has more memory bandwidth.