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GeForce 810M vs GeForce GT 315

Intro

The GeForce 810M features a core clock speed of 738 MHz and a DDR3 memory frequency of 900 MHz. It also features a 64-bit memory bus, and uses a 28 nm design. It is made up of 48 SPUs, 8 TAUs, and 4 Raster Operation Units.

Compare those specs to the GeForce GT 315, which has core speeds of 625 MHz on the GPU, and 790 MHz on the 512 MB of DDR3 memory. It features 48 SPUs as well as 16 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M 15 Watts
GeForce GT 315 52 Watts
Difference: 37 Watts (247%)

Memory Bandwidth

The GeForce GT 315 should theoretically be quite a bit faster than the GeForce 810M in general. (explain)

GeForce GT 315 25280 MB/sec
GeForce 810M 14400 MB/sec
Difference: 10880 (76%)

Texel Rate

The GeForce GT 315 will be a lot (about 69%) more effective at texture filtering than the GeForce 810M. (explain)

GeForce GT 315 10000 Mtexels/sec
GeForce 810M 5904 Mtexels/sec
Difference: 4096 (69%)

Pixel Rate

The GeForce GT 315 will be a lot (approximately 69%) better at anti-aliasing than the GeForce 810M, and should be capable of handling higher resolutions better. (explain)

GeForce GT 315 5000 Mpixels/sec
GeForce 810M 2952 Mpixels/sec
Difference: 2048 (69%)

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 GT 315

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 GT 315
Manufacturer nVidia nVidia
Year February 2014 November 2009
Code Name GF117 GT216
Memory 1024 MB 512 MB
Core Speed 738 MHz 625 MHz
Memory Speed 1800 MHz 1580 MHz
Power (Max TDP) 15 watts 52 watts
Bandwidth 14400 MB/sec 25280 MB/sec
Texel Rate 5904 Mtexels/sec 10000 Mtexels/sec
Pixel Rate 2952 Mpixels/sec 5000 Mpixels/sec
Unified Shaders 48 48
Texture Mapping Units 8 16
Render Output Units 4 8
Bus Type DDR3 DDR3
Bus Width 64-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 486 million
Bus PCIe 2.0 x16 PCIe 2.0
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher 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 maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 810M

Amazon.com

Check prices at:

GeForce GT 315

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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