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Radeon HD 6850 vs Radeon RX 560

Intro

The Radeon HD 6850 makes use of a 40 nm design. AMD has set the core frequency at 775 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this model. It features 960 SPUs as well as 48 TAUs and 32 ROPs.

Compare those specs to the Radeon RX 560, which has a core clock speed of 1175 MHz and a GDDR5 memory speed of 7000 MHz. It also uses a 128-bit bus, and makes use of a 14 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560 80 Watts
Radeon HD 6850 127 Watts
Difference: 47 Watts (59%)

Memory Bandwidth

In theory, the Radeon HD 6850 will be 12% quicker than the Radeon RX 560 in general, due to its greater data rate. (explain)

Radeon HD 6850 128000 MB/sec
Radeon RX 560 114688 MB/sec
Difference: 13312 (12%)

Texel Rate

The Radeon RX 560 will be quite a bit (more or less 102%) faster with regards to anisotropic filtering than the Radeon HD 6850. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 38000 (102%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6850 is the winner, by far. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon RX 560 18800 Mpixels/sec
Difference: 6000 (32%)

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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Radeon HD 6850

Amazon.com

Check prices at:

Radeon RX 560

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 Radeon HD 6850 Radeon RX 560
Manufacturer AMD AMD
Year October 2010 May 2017
Code Name Barts Pro Baffin
Memory 1024 MB 4096 MB
Core Speed 775 MHz 1175 MHz
Memory Speed 4000 MHz 28000 MHz
Power (Max TDP) 127 watts 80 watts
Bandwidth 128000 MB/sec 114688 MB/sec
Texel Rate 37200 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 24800 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 960 1024
Texture Mapping Units 48 64
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 1700 million 3000 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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

Display Prices

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Radeon HD 6850

Amazon.com

Check prices at:

Radeon RX 560

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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