NVIDIA GeForce 7300 GT DDR3 vs XFX GeForce 8300 GS 512MB (PV-T83S-YAFG)

The maximum theoretical pixel fillrate is dependent on graphics clock speed and the number of ROPs (Raster Operations Pipelines). The XFX GeForce 8300 GS 512MB has a modest lead here, as it runs at higher frequency, and both cards have identical number of ROPs. Better maximum pixel fill rate allows more pixels to be drawn on screen per second, which results in increased card performance, unless there are bottlenecks in other areas, such as CPU speed, texture fillrate or available memory bandwidth.

Since two graphics cards have the same number of TMUs (Texture Mapping Units), and the XFX GeForce 8300 GS 512MB is clocked higher, it also has higher texture fillrate. Better texture fill rate means that the graphics card can apply more textures and/or use more complex 3D effects for each texel, which improves games visual appearance.

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. Memory type, speed, and memory interface width all affect the bandwidth value. In this case, the NVIDIA GeForce 7300 GT DDR3 comes with better and higher clocked memory, and wider bus interface. Consequently, it has more memory bandwidth.