Compare any two graphics cards:
GeForce GTX 570 vs GeForce GTX 650 Ti
IntroThe GeForce GTX 570 makes use of a 40 nm design. nVidia has clocked the core frequency at 732 MHz. The GDDR5 RAM runs at a frequency of 950 MHz on this particular card. It features 480 SPUs along with 60 Texture Address Units and 40 Rasterization Operator Units.
Compare those specifications to the GeForce GTX 650 Ti, which makes use of a 28 nm design. nVidia has clocked the core frequency at 928 MHz. The GDDR5 RAM works at a speed of 1350 MHz on this model. It features 768 SPUs as well as 64 Texture Address Units and 16 ROPs.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
As far as performance goes, the GeForce GTX 570 should in theory be quite a bit superior to the GeForce GTX 650 Ti in general. (explain)
Texel RateThe GeForce GTX 650 Ti is quite a bit (approximately 35%) more effective at AF than the GeForce GTX 570. (explain)
Pixel RateThe GeForce GTX 570 should be much (approximately 97%) faster with regards to anti-aliasing than the GeForce GTX 650 Ti, and also will be capable of handling 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 data (counted in MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.