Compare any two graphics cards:
GeForce 9500 GT DDR2 vs GeForce GT 220 GDDR3
IntroThe GeForce 9500 GT DDR2 makes use of a 65 nm design. nVidia has set the core frequency at 550 MHz. The DDR2 RAM runs at a frequency of 500 MHz on this particular model. It features 32 SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.
Compare those specifications to the GeForce GT 220 GDDR3, which comes with GPU core speed of 625 MHz, and 512 MB of GDDR3 memory running at 1012 MHz through a 128-bit bus. It also is comprised of 48 SPUs, 16 Texture Address Units, and 8 ROPs.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
As far as performance goes, the GeForce GT 220 GDDR3 should in theory be much better than the GeForce 9500 GT DDR2 overall. (explain)
Texel RateThe GeForce GT 220 GDDR3 is just a bit (approximately 14%) more effective at AF than the GeForce 9500 GT DDR2. (explain)
Pixel RateThe GeForce GT 220 GDDR3 is a little bit (about 14%) better at AA than the GeForce 9500 GT DDR2, and will be able to handle higher screen 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 max amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.