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GeForce 810M vs GeForce 920M

Intro

The GeForce 810M uses a 28 nm design. nVidia has clocked the core speed at 738 MHz. The DDR3 RAM runs at a speed of 900 MHz on this particular model. It features 48 SPUs as well as 8 TAUs and 4 ROPs.

Compare all that to the GeForce 920M, which features GPU core speed of 954 MHz, and 2048 MB of DDR3 memory set to run at 900 MHz through a 64-bit bus. It also is made up of 384 SPUs, 32 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should perform the same. (explain)

Texel Rate

The GeForce 920M should be much (about 417%) better at anisotropic filtering than the GeForce 810M. (explain)

GeForce 920M 30528 Mtexels/sec
GeForce 810M 5904 Mtexels/sec
Difference: 24624 (417%)

Pixel Rate

The GeForce 920M is much (approximately 159%) more effective at FSAA than the GeForce 810M, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce 920M 7632 Mpixels/sec
GeForce 810M 2952 Mpixels/sec
Difference: 4680 (159%)

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 920M

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 920M
Manufacturer nVidia nVidia
Year February 2014 March 12 2015
Code Name GF117 GK208
Memory 1024 MB 2048 MB
Core Speed 738 MHz 954 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 15 watts (Unknown) watts
Bandwidth 14400 MB/sec 14400 MB/sec
Texel Rate 5904 Mtexels/sec 30528 Mtexels/sec
Pixel Rate 2952 Mpixels/sec 7632 Mpixels/sec
Unified Shaders 48 384
Texture Mapping Units 8 32
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 max amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a 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 - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 810M

Amazon.com

Check prices at:

GeForce 920M

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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