Compare any two graphics cards:
GeForce GT 220 GDDR3 vs Radeon HD 5570
IntroThe GeForce GT 220 GDDR3 comes with a clock speed of 625 MHz and a GDDR3 memory frequency of 1012 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It features 48 SPUs, 16 TAUs, and 8 ROPs.
Compare all of that to the Radeon HD 5570, which uses a 40 nm design. AMD has set the core frequency at 650 MHz. The DDR3 memory works at a speed of 900 MHz on this specific model. It features 400(80x5) SPUs as well as 20 TAUs and 8 Rasterization Operator Units.
(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 a little bit better than the Radeon HD 5570 in general. (explain)
Texel RateThe Radeon HD 5570 is much (approximately 30%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)
Pixel RateThe Radeon HD 5570 will be a bit (approximately 4%) more effective at anti-aliasing than the GeForce GT 220 GDDR3, and also will be able to handle higher 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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 can be applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.