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GeForce GTX 850M vs Radeon HD 3470 256MB

Intro

The GeForce GTX 850M comes with a clock frequency of 876 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Compare those specifications to the Radeon HD 3470 256MB, which comes with a GPU core clock speed of 800 MHz, and 256 MB of DDR2 memory set to run at 950 MHz through a 128-bit bus. It also is made up of 40(8x5) Stream Processors, 4 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 850M should theoretically perform just a bit faster than the Radeon HD 3470 256MB overall. (explain)

GeForce GTX 850M 32000 MB/sec
Radeon HD 3470 256MB 30400 MB/sec
Difference: 1600 (5%)

Texel Rate

The GeForce GTX 850M should be much (about 995%) faster with regards to anisotropic filtering than the Radeon HD 3470 256MB. (explain)

GeForce GTX 850M 35040 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 31840 (995%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 850M is superior to the Radeon HD 3470 256MB, by a large margin. (explain)

GeForce GTX 850M 14016 Mpixels/sec
Radeon HD 3470 256MB 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 256MB

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 256MB
Manufacturer nVidia AMD
Year March 12 2014 2008
Code Name GM107 RV620 PRO
Memory 2048 MB 256 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 DDR2
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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 850M

Amazon.com

Check prices at:

Radeon HD 3470 256MB

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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