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Radeon HD 6850 vs Radeon RX 560

Intro

The Radeon HD 6850 features a GPU clock speed of 775 MHz, and the 1024 MB of GDDR5 memory runs at 1000 MHz through a 256-bit bus. It also is comprised of 960 Stream Processors, 48 Texture Address Units, and 32 ROPs.

Compare those specifications to the Radeon RX 560, which features a clock frequency of 1175 MHz and a GDDR5 memory speed of 7000 MHz. It also uses a 128-bit memory bus, and uses a 14 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, 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

Performance-wise, the Radeon HD 6850 should in theory be a bit superior to the Radeon RX 560 in general. (explain)

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

Texel Rate

The Radeon RX 560 is much (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

The Radeon HD 6850 will be quite a bit (about 32%) faster with regards to anti-aliasing than the Radeon RX 560, and also should be able to handle higher screen resolutions without slowing down too much. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are 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 this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially 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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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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