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GeForce 810M vs GeForce 940M

Intro

The GeForce 810M makes use of a 28 nm design. nVidia has clocked the core frequency at 738 MHz. The DDR3 memory works at a frequency of 900 MHz on this card. It features 48 SPUs along with 8 TAUs and 4 ROPs.

Compare that to the GeForce 940M, which has a core clock frequency of 1072 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 64-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 940M will be 11% quicker than the GeForce 810M overall, because of its greater bandwidth. (explain)

GeForce 940M 16000 MB/sec
GeForce 810M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 940M is quite a bit (more or less 336%) more effective at texture filtering than the GeForce 810M. (explain)

GeForce 940M 25728 Mtexels/sec
GeForce 810M 5904 Mtexels/sec
Difference: 19824 (336%)

Pixel Rate

The GeForce 940M will be quite a bit (more or less 191%) more effective at full screen anti-aliasing than the GeForce 810M, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 940M 8576 Mpixels/sec
GeForce 810M 2952 Mpixels/sec
Difference: 5624 (191%)

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 940M

Amazon.com

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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 940M
Manufacturer nVidia nVidia
Year February 2014 March 12 2015
Code Name GF117 GM108
Memory 1024 MB 2048 MB
Core Speed 738 MHz 1072 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 15 watts (Unknown) watts
Bandwidth 14400 MB/sec 16000 MB/sec
Texel Rate 5904 Mtexels/sec 25728 Mtexels/sec
Pixel Rate 2952 Mpixels/sec 8576 Mpixels/sec
Unified Shaders 48 384
Texture Mapping Units 8 24
Render Output Units 4 8
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 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce 810M

Amazon.com

Check prices at:

GeForce 940M

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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