Radeon Pro Duo vs Radeon RX 6900 XT

Intro

Compare all that to the Radeon RX 6900 XT, which has clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 5120 SPUs as well as 320 Texture Address Units and 128 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6900 XT		300 Watts
Radeon Pro Duo		350 Watts
	Difference: 50 Watts (17%)

Memory Bandwidth

The Radeon Pro Duo should theoretically perform much faster than the Radeon RX 6900 XT overall. (explain)

Radeon Pro Duo		1024000 MB/sec
Radeon RX 6900 XT		524288 MB/sec
	Difference: 499712 (95%)

Texel Rate

The Radeon RX 6900 XT will be a small bit (more or less 14%) more effective at anisotropic filtering than the Radeon Pro Duo. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon Pro Duo		512000 Mtexels/sec
	Difference: 72000 (14%)

Pixel Rate

The Radeon RX 6900 XT will be much (approximately 83%) better at AA than the Radeon Pro Duo, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6900 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

Specifications

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 worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.