The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate. Radeon HD 6770 Memory: 1024Mb GDDR5 DESKTOP Release date. GeForce GTX 1050 Memory: 2048Mb GDDR5 DESKTOP Release date. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. GeForce GTX 1050 vs Radeon HD 6770 GeForce GTX 1050 vs Radeon HD 6770. GeForce GTS 250 1GB vs Radeon HD 6850 I get commissions for purchases made through links on this. The GDDR3 memory runs at a frequency of 999 MHz on this card. nVidia has set the core speed at 576 MHz. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. Intro The GeForce GTX 260 makes use of a 65 nm design. Pixel Rate: Pixel rate is the most pixels 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 applied in one second. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). This figure is calculated by multiplying the total amount of 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 are applied per second. It especially helps with AA, High Dynamic Range and high resolutions. The higher the memory bandwidth, the faster the card will be in general. If the card has DDR memory, it should be multiplied by 2 again. It is worked out by multiplying the interface width by its memory clock speed.