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Radeon Pro Duo vs Radeon RX 6800 XT

Intro

The Radeon Pro Duo makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The HBM RAM runs at a frequency of 500 MHz on this specific card. It features 4096 SPUs as well as 256 TAUs and 64 Rasterization Operator Units.

Compare those specifications to the Radeon RX 6800 XT, which features GPU clock speed of 1825 MHz, and 16384 MB of GDDR6 memory running at 2000 MHz through a 256-bit bus. It also is made up of 4608 SPUs, 288 TAUs, and 128 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800 XT 300 Watts
Radeon Pro Duo 350 Watts
Difference: 50 Watts (17%)

Memory Bandwidth

As far as performance goes, the Radeon Pro Duo should theoretically be a lot superior to the Radeon RX 6800 XT overall. (explain)

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

Texel Rate

The Radeon RX 6800 XT will be a small bit (approximately 3%) faster with regards to anisotropic filtering than the Radeon Pro Duo. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
Radeon Pro Duo 512000 Mtexels/sec
Difference: 13600 (3%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6800 XT is the winner, and very much so. (explain)

Radeon RX 6800 XT 233600 Mpixels/sec
Radeon Pro Duo 128000 Mpixels/sec
Difference: 105600 (83%)

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 XT

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 XT
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) 1825 MHz
Memory Speed 500 MHz (x2) 4000 GB/s
Power (Max TDP) 350 watts 300 watts
Bandwidth 1024000 MB/sec 524288 MB/sec
Texel Rate 512000 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 128000 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 4096 (x2) 4608
Texture Mapping Units 256 (x2) 288
Render Output Units 64 (x2) 128
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: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should 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, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon Pro Duo

Amazon.com

Check prices at:

Radeon RX 6800 XT

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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