Compare any two graphics cards:
GeForce 9500 GT 512MB GDDR3 vs Radeon HD 3470 512MB
IntroThe GeForce 9500 GT 512MB GDDR3 has core speeds of 550 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 32 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.
Compare those specifications to the Radeon HD 3470 512MB, which makes use of a 55 nm design. AMD has set the core frequency at 800 MHz. The GDDR3 memory works at a speed of 950 MHz on this model. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
As far as performance goes, the Radeon HD 3470 512MB should in theory be just a bit superior to the GeForce 9500 GT 512MB GDDR3 in general. (explain)
Texel RateThe GeForce 9500 GT 512MB GDDR3 should be much (about 175%) faster with regards to anisotropic filtering than the Radeon HD 3470 512MB. (explain)
Pixel RateThe GeForce 9500 GT 512MB GDDR3 should be a lot (about 38%) faster with regards to AA than the Radeon HD 3470 512MB, and should be able to handle higher screen resolutions without slowing down too much. (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 largest amount of data (measured in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result 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 anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per 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 number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.