Compare any two graphics cards:
GeForce 9800 GTX vs Radeon HD 4830 512MB
IntroThe GeForce 9800 GTX uses a 65 nm design. nVidia has set the core frequency at 675 MHz. The GDDR3 RAM runs at a speed of 1100 MHz on this particular card. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.Compare those specs to the Radeon HD 4830 512MB, which has a clock frequency of 575 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It is made up of 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthThe GeForce 9800 GTX should theoretically be quite a bit faster than the Radeon HD 4830 512MB overall. (explain)
Texel RateThe GeForce 9800 GTX is quite a bit (approximately 135%) faster with regards to anisotropic filtering than the Radeon HD 4830 512MB. (explain)
Pixel RateIf running with a high screen resolution is important to you, then the GeForce 9800 GTX is superior to the Radeon HD 4830 512MB, but only just. (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 max amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If 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, HDR and higher screen resolutions. Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second. Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory 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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