Compare any two graphics cards:
GeForce 810M vs GeForce 820M
IntroThe GeForce 810M comes with core speeds of 738 MHz on the GPU, and 900 MHz on the 1024 MB of DDR3 RAM. It features 48 SPUs as well as 8 Texture Address Units and 4 ROPs.Compare all that to the GeForce 820M, which makes use of a 28 nm design. nVidia has set the core frequency at 719 MHz. The DDR3 memory is set to run at a speed of 1000 MHz on this specific model. It features 96 SPUs as well as 16 Texture Address Units and 4 ROPs.
Display Graphs
Power Usage and Theoretical BenchmarksBoth cards have the same power consumption.Memory BandwidthTheoretically, the GeForce 820M should be a bit faster than the GeForce 810M in general. (explain)
Texel RateThe GeForce 820M is a lot (approximately 95%) more effective at AF than the GeForce 810M. (explain)
Pixel RateIf running with high levels of AA is important to you, then the GeForce 810M is superior to the GeForce 820M, but not 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
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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second. Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory 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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