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GeForce 820M vs GeForce GT 210

Intro

The GeForce 820M comes with a GPU core clock speed of 719 MHz, and the 2048 MB of DDR3 memory runs at 1000 MHz through a 64-bit bus. It also is comprised of 96 SPUs, 16 TAUs, and 4 ROPs.

Compare that to the GeForce GT 210, which has clock speeds of 589 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 16 SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M 15 Watts
GeForce GT 210 31 Watts
Difference: 16 Watts (107%)

Memory Bandwidth

Theoretically, the GeForce 820M should be much faster than the GeForce GT 210 overall. (explain)

GeForce 820M 16000 MB/sec
GeForce GT 210 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 820M will be a lot (more or less 144%) more effective at anisotropic filtering than the GeForce GT 210. (explain)

GeForce 820M 11504 Mtexels/sec
GeForce GT 210 4712 Mtexels/sec
Difference: 6792 (144%)

Pixel Rate

The GeForce 820M will be a lot (more or less 22%) faster with regards to AA than the GeForce GT 210, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 820M 2876 Mpixels/sec
GeForce GT 210 2356 Mpixels/sec
Difference: 520 (22%)

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 820M

Amazon.com

Check prices at:

GeForce GT 210

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 820M GeForce GT 210
Manufacturer nVidia nVidia
Year February 2014 October 2009
Code Name GF117 GT218
Memory 2048 MB 512 MB
Core Speed 719 MHz 589 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 15 watts 31 watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 11504 Mtexels/sec 4712 Mtexels/sec
Pixel Rate 2876 Mpixels/sec 2356 Mpixels/sec
Unified Shaders 96 16
Texture Mapping Units 16 8
Render Output Units 4 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 260 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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 820M

Amazon.com

Check prices at:

GeForce GT 210

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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