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GeForce 840M vs GeForce GT 210

Intro

The GeForce 840M comes with a GPU core clock speed of 1029 MHz, and the 2048 MB of DDR3 memory runs at 1000 MHz through a 64-bit bus. It also is comprised of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare that to the GeForce GT 210, which features core speeds of 589 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 memory. It features 16 SPUs as well as 8 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 840M 30 Watts
GeForce GT 210 31 Watts
Difference: 1 Watts (3%)

Memory Bandwidth

The GeForce 840M should in theory perform quite a bit faster than the GeForce GT 210 overall. (explain)

GeForce 840M 16000 MB/sec
GeForce GT 210 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 840M should be quite a bit (approximately 424%) better at anisotropic filtering than the GeForce GT 210. (explain)

GeForce 840M 24696 Mtexels/sec
GeForce GT 210 4712 Mtexels/sec
Difference: 19984 (424%)

Pixel Rate

The GeForce 840M is quite a bit (approximately 249%) better at anti-aliasing than the GeForce GT 210, and also will be capable of handling higher resolutions better. (explain)

GeForce 840M 8232 Mpixels/sec
GeForce GT 210 2356 Mpixels/sec
Difference: 5876 (249%)

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 840M

Amazon.com

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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 840M GeForce GT 210
Manufacturer nVidia nVidia
Year March 12 2014 October 2009
Code Name GM108 GT218
Memory 2048 MB 512 MB
Core Speed 1029 MHz 589 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 30 watts 31 watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 24696 Mtexels/sec 4712 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 2356 Mpixels/sec
Unified Shaders 384 16
Texture Mapping Units 24 8
Render Output Units 8 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 260 million
Bus PCIe 3.0 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 largest amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably 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 840M

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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