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GeForce GTX 850M vs Radeon HD 3470 512MB

Intro

The GeForce GTX 850M features clock speeds of 876 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Compare all that to the Radeon HD 3470 512MB, which uses a 55 nm design. AMD has clocked the core speed at 800 MHz. The GDDR3 memory runs at a frequency of 950 MHz on this specific card. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 850M should perform just a bit faster than the Radeon HD 3470 512MB in general. (explain)

GeForce GTX 850M 32000 MB/sec
Radeon HD 3470 512MB 30400 MB/sec
Difference: 1600 (5%)

Texel Rate

The GeForce GTX 850M should be quite a bit (about 995%) more effective at AF than the Radeon HD 3470 512MB. (explain)

GeForce GTX 850M 35040 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 31840 (995%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 850M is superior to the Radeon HD 3470 512MB, by far. (explain)

GeForce GTX 850M 14016 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 10816 (338%)

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 GTX 850M

Amazon.com

Check prices at:

Radeon HD 3470 512MB

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 GTX 850M Radeon HD 3470 512MB
Manufacturer nVidia AMD
Year March 12 2014 2008
Code Name GM107 RV620 PRO
Memory 2048 MB 512 MB
Core Speed 876 MHz 800 MHz
Memory Speed 2000 MHz 1900 MHz
Power (Max TDP) 40 watts (Unknown) watts
Bandwidth 32000 MB/sec 30400 MB/sec
Texel Rate 35040 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 640 40(8x5)
Texture Mapping Units 40 4
Render Output Units 16 4
Bus Type DDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels the video card can possibly record to the local memory per 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 - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 850M

Amazon.com

Check prices at:

Radeon HD 3470 512MB

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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