Compare any two graphics cards:
GeForce 8800 Ultra vs GeForce GTX 460 2GB
IntroThe GeForce 8800 Ultra makes use of a 90 nm design. nVidia has set the core speed at 612 MHz. The GDDR3 memory is set to run at a speed of 1080 MHz on this particular card. It features 128 SPUs along with 64 Texture Address Units and 24 ROPs.
Compare all of that to the GeForce GTX 460 2GB, which has a clock frequency of 675 MHz and a GDDR5 memory speed of 900 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It features 336 SPUs, 56 TAUs, and 32 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
In theory, the GeForce GTX 460 2GB is 11% faster than the GeForce 8800 Ultra in general, because of its higher data rate. (explain)
Texel RateThe GeForce 8800 Ultra should be a bit (approximately 4%) faster with regards to anisotropic filtering than the GeForce GTX 460 2GB. (explain)
Pixel RateThe GeForce GTX 460 2GB is quite a bit (approximately 47%) better at FSAA than the GeForce 8800 Ultra, and also able to handle higher screen resolutions without losing too much performance. (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 max amount of data (measured in MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 record to the 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.