![]() The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. It is measured in millions of texels in one second. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). This is calculated by multiplying the total amount of texture units by the core 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. Based on an outdated architecture (Nvidia Fermi), there are no performance. This is a much newer product, it might have better long term support. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6770. The better the bandwidth is, the faster the card will be in general. Reasons to consider GeForce GT 710 (Fermi) 79 watts lower power draw. If the card has DDR type memory, it must be multiplied by 2 again. The number is worked out by multiplying the card's bus width by its memory speed. Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second.
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