![]() ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. Pixel Rate: Pixel rate is the maximum number of pixels the video 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 in a second. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. It especially helps with anti-aliasing, HDR and higher screen resolutions. The higher the bandwidth is, the better the card will be in general. If it uses DDR memory, it must be multiplied by 2 again. It is worked out by multiplying the card's interface width by its memory speed. ![]() Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface in a second.
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