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GeForce GTX 850M vs Radeon HD 5670

Intro

The GeForce GTX 850M has a GPU core clock speed of 876 MHz, and the 2048 MB of DDR3 RAM is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Compare all of that to the Radeon HD 5670, which features core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
Radeon HD 5670 61 Watts
Difference: 21 Watts (53%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5670 should theoretically be a lot better than the GeForce GTX 850M overall. (explain)

Radeon HD 5670 64000 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 32000 (100%)

Texel Rate

The GeForce GTX 850M is much (about 126%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 850M 35040 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 19540 (126%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 850M is superior to the Radeon HD 5670, by a large margin. (explain)

GeForce GTX 850M 14016 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 7816 (126%)

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

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Radeon HD 5670

Amazon.com

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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 5670
Manufacturer nVidia AMD
Year March 12 2014 January 14, 2010
Code Name GM107 Redwood XT
Memory 2048 MB 1024 MB
Core Speed 876 MHz 775 MHz
Memory Speed 2000 MHz 4000 MHz
Power (Max TDP) 40 watts 61 watts
Bandwidth 32000 MB/sec 64000 MB/sec
Texel Rate 35040 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 640 400(80x5)
Texture Mapping Units 40 20
Render Output Units 16 8
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 627 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 850M

Amazon.com

Check prices at:

Radeon HD 5670

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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