The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate. In the graphics card arms race numbers can speak louder than words. Passmark, SPECviewperf 12, 3Dmark and other. Compare graphics card gaming performance. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). GPU Comparison Specs & Benchmarks NVIDIA GeForce GTX 650 vs NVIDIA GeForce GTS 250. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. It is measured in millions of texels processed per second.
The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). This is worked out by multiplying the total texture units by the core speed of the chip. Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. It especially helps with anti-aliasing, HDR and high resolutions. But AOpen's GeForce 6800 GT card will deliver much better performance. The better the card's memory bandwidth, the faster the card will be in general. We pit nVidia's 6800 GT against ATI's brand-new X1600 XT to see which GPU.
If the card has DDR memory, it must be multiplied by 2 once again. The number is calculated by multiplying the interface width by the speed of its memory. Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in a second.
0 kommentar(er)
