![]() ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. It is measured in millions of texels in one second. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). ![]() This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. It especially helps with AA, HDR and high resolutions. The better the card's memory bandwidth, the better the card will be in general. If the card has DDR memory, the result should be multiplied by 2 once again. ![]() The number is worked out by multiplying the interface width by the speed of its memory. Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface in one second.
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