Compare any two graphics cards:
GeForce GTX 285 2GB vs GeForce GTX 580 3GB
IntroThe GeForce GTX 285 2GB has a core clock speed of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also makes use of a 512-bit bus, and makes use of a 55 nm design. It is comprised of 240 SPUs, 80 Texture Address Units, and 32 ROPs.Compare those specifications to the GeForce GTX 580 3GB, which uses a 40 nm design. nVidia has set the core frequency at 772 MHz. The GDDR5 RAM is set to run at a frequency of 1002 MHz on this particular card. It features 512 SPUs as well as 64 Texture Address Units and 48 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthTheoretically speaking, the GeForce GTX 580 3GB will be 21% faster than the GeForce GTX 285 2GB overall, because of its greater bandwidth. (explain)
Texel RateThe GeForce GTX 285 2GB will be just a bit (approximately 5%) more effective at anisotropic filtering than the GeForce GTX 580 3GB. (explain)
Pixel RateIf using a high screen resolution is important to you, then the GeForce GTX 580 3GB is superior to the GeForce GTX 285 2GB, and very much so. (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 (counted in megabytes per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few 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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