ROPs (Raster Operations Pipelines - also sometimes 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 the card's clock speed. Pixel Rate: Pixel rate is the most pixels that the graphics 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 one second. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF).
The Radeon RX 6900 XT is much cheaper at 999 (770, about AU1,400) next to the Nvidia GeForce RTX 3090’s 1,499. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. At the top of the pile, AMD still comes out the winner in terms of affordability. Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. It especially helps with AA, High Dynamic Range and high resolutions. The higher the memory bandwidth, the better the card will be in general. If the card has DDR type RAM, it should be multiplied by 2 again.
It is calculated by multiplying the interface width by its memory clock speed. If you want an upgrade suggestion for the Radeon R7 M260 then a good choice would be 20 Series GeForce RTX 2070 Super Max-Q as this is better than 811 of the top 1000 most demanding game. Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second.