Compare any two graphics cards:
GeForce GTX 560 Ti vs GeForce GTX 570
IntroThe GeForce GTX 560 Ti comes with a clock speed of 822 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is made up of 384 SPUs, 64 TAUs, and 32 ROPs.
Compare those specs to the GeForce GTX 570, which makes use of a 40 nm design. nVidia has set the core speed at 732 MHz. The GDDR5 RAM works at a speed of 950 MHz on this model. It features 480 SPUs along with 60 Texture Address Units and 40 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
As far as performance goes, the GeForce GTX 570 should in theory be a small bit superior to the GeForce GTX 560 Ti overall. (explain)
Texel RateThe GeForce GTX 560 Ti will be a bit (about 20%) more effective at AF than the GeForce GTX 570. (explain)
Pixel RateThe GeForce GTX 570 is a bit (about 11%) better at full screen anti-aliasing than the GeForce GTX 560 Ti, and also should be able to handle higher screen resolutions without slowing down too much. (explain)
Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.