Compare any two graphics cards:
Radeon HD 3470 256MB vs Radeon HD 4670 512MB
IntroThe Radeon HD 3470 256MB uses a 55 nm design. AMD has set the core frequency at 800 MHz. The DDR2 RAM is set to run at a speed of 950 MHz on this card. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 Rasterization Operator Units.Compare all of that to the Radeon HD 4670 512MB, which comes with core speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 memory. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksMemory BandwidthThe Radeon HD 4670 512MB should in theory be a little bit faster than the Radeon HD 3470 256MB overall. (explain)
Texel RateThe Radeon HD 4670 512MB will be quite a bit (more or less 650%) better at anisotropic filtering than the Radeon HD 3470 256MB. (explain)
Pixel RateThe Radeon HD 4670 512MB is a lot (about 88%) better at AA than the Radeon HD 3470 256MB, and also will be capable of handling higher screen resolutions better. (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 max amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second. Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max 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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