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GeForce 810M vs GeForce 920M

Intro

The GeForce 810M features a clock speed of 738 MHz and a DDR3 memory frequency of 900 MHz. It also features a 64-bit bus, and makes use of a 28 nm design. It is made up of 48 SPUs, 8 Texture Address Units, and 4 ROPs.

Compare those specifications to the GeForce 920M, which uses a 28 nm design. nVidia has clocked the core speed at 954 MHz. The DDR3 RAM is set to run at a frequency of 900 MHz on this particular card. It features 384 SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have the exact same bandwidth, so theoretically they should have identical performance. (explain)

Texel Rate

The GeForce 920M is a lot (approximately 417%) better at texture filtering than the GeForce 810M. (explain)

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

Pixel Rate

If using a high resolution is important to you, then the GeForce 920M is a better choice, by far. (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

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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 transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum 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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