Compare any two graphics cards:
Radeon HD 3470 512MB vs Radeon HD 6870
IntroThe Radeon HD 3470 512MB features a GPU clock speed of 800 MHz, and the 512 MB of GDDR3 memory runs at 950 MHz through a 128-bit bus. It also is made up of 40(8x5) Stream Processors, 4 Texture Address Units, and 4 Raster Operation Units.Compare all of that to the Radeon HD 6870, which uses a 40 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM works at a speed of 1050 MHz on this particular model. It features 1120 SPUs as well as 56 Texture Address Units and 32 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksMemory BandwidthThe Radeon HD 6870 should in theory be a lot faster than the Radeon HD 3470 512MB in general. (explain)
Texel RateThe Radeon HD 6870 will be much (more or less 1475%) more effective at anisotropic filtering than the Radeon HD 3470 512MB. (explain)
Pixel RateIf using a high screen resolution is important to you, then the Radeon HD 6870 is superior to the Radeon HD 3470 512MB, by a large margin. (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: Bandwidth is the largest amount of information (measured in MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions. Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second. Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential 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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