The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate. GIGABYTE GeForce GTX 960 2GB GDDR5 PCI Express 3.0 ATX Video Cards GV-N960WF2CN-2GD (rev. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. It is measured in millions of texels in a second. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). This number is worked out by multiplying the total amount of texture units of the card 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, High Dynamic Range and higher screen resolutions. The higher the card's memory bandwidth, the faster the card will be in general. HP Envy x360 15-w001ur Core i7 5500U/16Gb/1Tb/nVidia GeForce 930M 2Gb/15.6/Touch/FHD IPS(1920x1080)/Windows 8.1 64/silver/. If it uses DDR type RAM, it must be multiplied by 2 once again. It's worked out by multiplying the bus width by its memory speed.
Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported over the external memory interface in one second.