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GeForce 810M vs GeForce 825M

Intro

The GeForce 810M features a GPU clock speed of 738 MHz, and the 1024 MB of DDR3 memory runs at 900 MHz through a 64-bit bus. It also features 48 Stream Processors, 8 Texture Address Units, and 4 ROPs.

Compare all of that to the GeForce 825M, which makes use of a 28 nm design. nVidia has clocked the core speed at 850 MHz. The DDR3 RAM runs at a frequency of 900 MHz on this specific card. It features 384 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M 15 Watts
GeForce 825M 33 Watts
Difference: 18 Watts (120%)

Memory Bandwidth

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

Texel Rate

The GeForce 825M is quite a bit (about 130%) faster with regards to anisotropic filtering than the GeForce 810M. (explain)

GeForce 825M 13600 Mtexels/sec
GeForce 810M 5904 Mtexels/sec
Difference: 7696 (130%)

Pixel Rate

The GeForce 825M will be much (more or less 130%) better at full screen anti-aliasing than the GeForce 810M, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce 825M 6800 Mpixels/sec
GeForce 810M 2952 Mpixels/sec
Difference: 3848 (130%)

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 825M

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 825M
Manufacturer nVidia nVidia
Year February 2014 January 27 2014
Code Name GF117 GK208
Memory 1024 MB 2048 MB
Core Speed 738 MHz 850 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 15 watts 33 watts
Bandwidth 14400 MB/sec 14400 MB/sec
Texel Rate 5904 Mtexels/sec 13600 Mtexels/sec
Pixel Rate 2952 Mpixels/sec 6800 Mpixels/sec
Unified Shaders 48 384
Texture Mapping Units 8 16
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 x8
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in 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. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum 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 higher this number, 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 number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - 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 825M

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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