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