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GeForce 810M vs GeForce 820M

Intro

The GeForce 810M makes use of a 28 nm design. nVidia has set the core frequency at 738 MHz. The DDR3 RAM works at a frequency of 900 MHz on this specific card. It features 48 SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Compare those specs to the GeForce 820M, which comes with a clock speed of 719 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 64-bit memory bus, and uses a 28 nm design. It features 96 SPUs, 16 Texture Address Units, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce 820M, in theory, should be a small bit faster than the GeForce 810M in general. (explain)

GeForce 820M 16000 MB/sec
GeForce 810M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 820M will be much (more or less 95%) better at AF than the GeForce 810M. (explain)

GeForce 820M 11504 Mtexels/sec
GeForce 810M 5904 Mtexels/sec
Difference: 5600 (95%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 810M is superior to the GeForce 820M, but not by far. (explain)

GeForce 810M 2952 Mpixels/sec
GeForce 820M 2876 Mpixels/sec
Difference: 76 (3%)

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

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GeForce 810M

Amazon.com

Check prices at:

GeForce 820M

Amazon.com

Check prices at:

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

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Model GeForce 810M GeForce 820M
Manufacturer nVidia nVidia
Year February 2014 February 2014
Code Name GF117 GF117
Memory 1024 MB 2048 MB
Core Speed 738 MHz 719 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 15 watts 15 watts
Bandwidth 14400 MB/sec 16000 MB/sec
Texel Rate 5904 Mtexels/sec 11504 Mtexels/sec
Pixel Rate 2952 Mpixels/sec 2876 Mpixels/sec
Unified Shaders 48 96
Texture Mapping Units 8 16
Render Output Units 4 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 2.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 810M

Amazon.com

Check prices at:

GeForce 820M

Amazon.com

Check prices at:

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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