Compare any two graphics cards:
Radeon HD 4670 512MB vs Radeon HD 5550
IntroThe Radeon HD 4670 512MB comes with a core clock speed of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1000 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is comprised of 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.Compare that to the Radeon HD 5550, which features a core clock speed of 550 MHz and a DDR2 memory speed of 400 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It features 320(64x5) SPUs, 16 TAUs, and 8 Raster Operation Units.
Display Graphs
Power Usage and Theoretical BenchmarksMemory BandwidthIn theory, the Radeon HD 4670 512MB should be 150% faster than the Radeon HD 5550 overall, due to its higher data rate. (explain)
Texel RateThe Radeon HD 4670 512MB will be a lot (approximately 173%) faster with regards to AF than the Radeon HD 5550. (explain)
Pixel RateIf running with a high resolution is important to you, then the Radeon HD 4670 512MB 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. Price Comparison
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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 information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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 figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to 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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