Compare any two graphics cards:
GeForce 840M vs GeForce GTX 260 216SP 55 nm
IntroThe GeForce 840M uses a 28 nm design. nVidia has clocked the core frequency at 1029 MHz. The DDR3 memory is set to run at a frequency of 1000 MHz on this model. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.Compare those specs to the GeForce GTX 260 216SP 55 nm, which makes use of a 55 nm design. nVidia has set the core frequency at 576 MHz. The GDDR3 RAM works at a speed of 999 MHz on this model. It features 216 SPUs along with 72 Texture Address Units and 28 Rasterization Operator Units.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthIn theory, the GeForce GTX 260 216SP 55 nm is 599% faster than the GeForce 840M overall, due to its greater bandwidth. (explain)
Texel RateThe GeForce GTX 260 216SP 55 nm should be much (approximately 68%) better at texture filtering than the GeForce 840M. (explain)
Pixel RateIf using a high screen resolution is important to you, then the GeForce GTX 260 216SP 55 nm is a better choice, 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 maximum amount of information (counted in MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 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, HDR and higher screen resolutions. Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the 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 the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. 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 output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to 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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