Compare any two graphics cards:
GeForce 8600 GT 1GB DDR2 vs GeForce 9600 GSO 768MB
IntroThe GeForce 8600 GT 1GB DDR2 comes with a core clock frequency of 540 MHz and a DDR2 memory frequency of 400 MHz. It also features a 128-bit bus, and makes use of a 80 nm design. It is made up of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.
Compare those specs to the GeForce 9600 GSO 768MB, which features a core clock frequency of 550 MHz and a GDDR3 memory speed of 800 MHz. It also makes use of a 192-bit memory bus, and uses a 65 nm design. It is comprised of 96 SPUs, 48 Texture Address Units, and 12 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Performance-wise, the GeForce 9600 GSO 768MB should in theory be quite a bit superior to the GeForce 8600 GT 1GB DDR2 in general. (explain)
Texel RateThe GeForce 9600 GSO 768MB will be much (about 206%) faster with regards to texture filtering than the GeForce 8600 GT 1GB DDR2. (explain)
Pixel RateThe GeForce 9600 GSO 768MB is much (about 53%) faster with regards to FSAA than the GeForce 8600 GT 1GB DDR2, and should be capable of handling higher resolutions more effectively. (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 information (measured in MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock 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 processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.