Compare any two graphics cards:
GeForce GTX 580 vs GeForce GTX 970
IntroThe GeForce GTX 580 uses a 40 nm design. nVidia has clocked the core frequency at 772 MHz. The GDDR5 memory runs at a speed of 1002 MHz on this model. It features 512 SPUs along with 64 Texture Address Units and 48 Rasterization Operator Units.
Compare those specifications to the GeForce GTX 970, which features a clock frequency of 1050 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is comprised of 1664 SPUs, 104 TAUs, and 64 Raster Operation Units.
BenchmarksThese are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Theoretically speaking, the GeForce GTX 970 is 16% faster than the GeForce GTX 580 in general, because of its higher bandwidth. (explain)
Texel RateThe GeForce GTX 970 will be quite a bit (more or less 121%) faster with regards to texture filtering than the GeForce GTX 580. (explain)
Pixel RateThe GeForce GTX 970 will be quite a bit (approximately 81%) faster with regards to FSAA than the GeForce GTX 580, and should be capable of handling higher resolutions better. (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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.