Compare any two graphics cards:
GeForce GTX 460 1GB vs GeForce GTX 550 Ti
IntroThe GeForce GTX 460 1GB makes use of a 40 nm design. nVidia has set the core frequency at 675 MHz. The GDDR5 memory works at a speed of 900 MHz on this specific card. It features 336 SPUs as well as 56 TAUs and 32 ROPs.
Compare those specifications to the GeForce GTX 550 Ti, which features a core clock frequency of 900 MHz and a GDDR5 memory speed of 1026 MHz. It also uses a 192-bit bus, and makes use of a 40 nm design. It is made up of 192 SPUs, 32 TAUs, and 24 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
The GeForce GTX 460 1GB should in theory be just a bit faster than the GeForce GTX 550 Ti overall. (explain)
Texel RateThe GeForce GTX 460 1GB will be a lot (approximately 31%) better at anisotropic filtering than the GeForce GTX 550 Ti. (explain)
Pixel RateBoth cards have the exact same pixel fill rate, so theoretically they should be equally good at at full screen anti-aliasing, and be able to handle the same screen resolutions. (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 maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.