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Radeon Pro Duo vs Radeon RX 6800

Intro

The Radeon Pro Duo has core clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs along with 256 TAUs and 64 Rasterization Operator Units.

Compare all of that to the Radeon RX 6800, which comes with clock speeds of 1700 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 3840 SPUs as well as 240 TAUs and 96 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800 250 Watts
Radeon Pro Duo 350 Watts
Difference: 100 Watts (40%)

Memory Bandwidth

In theory, the Radeon Pro Duo will be 95% quicker than the Radeon RX 6800 in general, because of its greater data rate. (explain)

Radeon Pro Duo 1024000 MB/sec
Radeon RX 6800 524288 MB/sec
Difference: 499712 (95%)

Texel Rate

The Radeon Pro Duo should be quite a bit (about 25%) faster with regards to texture filtering than the Radeon RX 6800. (explain)

Radeon Pro Duo 512000 Mtexels/sec
Radeon RX 6800 408000 Mtexels/sec
Difference: 104000 (25%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6800 is superior to the Radeon Pro Duo, and very much so. (explain)

Radeon RX 6800 163200 Mpixels/sec
Radeon Pro Duo 128000 Mpixels/sec
Difference: 35200 (28%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon Pro Duo

Amazon.com

Check prices at:

Radeon RX 6800

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 Pro Duo Radeon RX 6800
Manufacturer AMD AMD
Year April 2016 November 2020
Code Name Fiji XT Navi 21
Memory 4096 MB (x2) 16384 MB
Core Speed 1000 MHz (x2) 1700 MHz
Memory Speed 500 MHz (x2) 4000 GB/s
Power (Max TDP) 350 watts 250 watts
Bandwidth 1024000 MB/sec 524288 MB/sec
Texel Rate 512000 Mtexels/sec 408000 Mtexels/sec
Pixel Rate 128000 Mpixels/sec 163200 Mpixels/sec
Unified Shaders 4096 (x2) 3840
Texture Mapping Units 256 (x2) 240
Render Output Units 64 (x2) 96
Bus Type HBM GDDR6
Bus Width 4096-bit (x2) 256-bit
Fab Process 28 nm 7 nm
Transistors 8900 million 26800 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 by the core 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 number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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Radeon Pro Duo

Amazon.com

Check prices at:

Radeon RX 6800

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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