Compare any two graphics cards:
GeForce GTX 275 vs Radeon HD 5850
IntroThe GeForce GTX 275 comes with a clock frequency of 633 MHz and a GDDR3 memory frequency of 1134 MHz. It also features a 448-bit bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 28 Raster Operation Units.Compare that to the Radeon HD 5850, which makes use of a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this particular model. It features 1440(288x5) SPUs as well as 72 Texture Address Units and 32 Rasterization Operator Units.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthTheoretically speaking, the Radeon HD 5850 should be 1% faster than the GeForce GTX 275 overall, because of its greater bandwidth. (explain)
Texel RateThe Radeon HD 5850 will be a bit (more or less 3%) more effective at texture filtering than the GeForce GTX 275. (explain)
Pixel RateThe Radeon HD 5850 is quite a bit (more or less 31%) faster with regards to anti-aliasing than the GeForce GTX 275, and also 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. Price Comparison
Display Prices
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. Specifications
Display Specifications
Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second. Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
Display Prices
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.
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