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 are processed in one second. It especially helps with AA, High Dynamic Range and high resolutions. The better the bandwidth is, the better the card will be in general. In the case of DDR memory, it must be multiplied by 2 once again. It's worked out by multiplying the interface width by its memory clock speed. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. It is measured in millions of texels processed in a second. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip.

The higher the card's memory bandwidth, the faster the card will be in general. If the card has DDR RAM, it must be multiplied by 2 once again. It is calculated by multiplying the card's bus width by its memory speed. Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second.

Geforce gtx 860m 2gb ddr5