Compare any two graphics cards:
Radeon HD 3850 X2 vs Radeon HD 4730
IntroThe Radeon HD 3850 X2 uses a 55 nm design. AMD has set the core frequency at 668 MHz. The GDDR3 memory works at a speed of 828 MHz on this particular card. It features 320(64x5) SPUs along with 16 Texture Address Units and 16 Rasterization Operator Units.Compare those specs to the Radeon HD 4730, which makes use of a 55 nm design. AMD has set the core speed at 700 MHz. The GDDR5 RAM runs at a speed of 900 MHz on this card. It features 640(128x5) SPUs as well as 32 Texture Address Units and 8 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksMemory BandwidthPerformance-wise, the Radeon HD 3850 X2 should theoretically be quite a bit better than the Radeon HD 4730 overall. (explain)
Texel RateThe Radeon HD 4730 should be a small bit (more or less 5%) better at anisotropic filtering than the Radeon HD 3850 X2. (explain)
Pixel RateIf running with a high resolution is important to you, then the Radeon HD 3850 X2 is the winner, by far. (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. One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of. 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 max amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions. Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, 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 can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory 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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