Compare any two graphics cards:
GeForce 9500 GT DDR2 vs GeForce GTX 260
IntroThe GeForce 9500 GT DDR2 uses a 65 nm design. nVidia has clocked the core speed at 550 MHz. The DDR2 memory is set to run at a speed of 500 MHz on this particular card. It features 32 SPUs along with 16 TAUs and 8 ROPs.
Compare those specs to the GeForce GTX 260, which features a core clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also makes use of a 448-bit bus, and makes use of a 65 nm design. It is made up of 192 SPUs, 64 Texture Address Units, and 28 Raster Operation Units.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Performance-wise, the GeForce GTX 260 should in theory be a lot superior to the GeForce 9500 GT DDR2 overall. (explain)
Texel RateThe GeForce GTX 260 will be a lot (approximately 319%) better at texture filtering than the GeForce 9500 GT DDR2. (explain)
Pixel RateThe GeForce GTX 260 should be quite a bit (more or less 267%) more effective at FSAA than the GeForce 9500 GT DDR2, and will 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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure 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 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 the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.