Radeon Pro Duo vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which has GPU clock speed of 1700 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is comprised of 3840 SPUs, 240 Texture Address Units, and 96 Raster Operation Units.

Display Graphs

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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

Theoretically, the Radeon Pro Duo should perform quite a bit faster than the Radeon RX 6800 overall. (explain)

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

Texel Rate

The Radeon Pro Duo will be quite a bit (more or less 25%) more effective at AF than the Radeon RX 6800. (explain)

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

Pixel Rate

The Radeon RX 6800 should be a lot (more or less 28%) faster with regards to full screen anti-aliasing than the Radeon Pro Duo, and should be capable of handling higher screen resolutions more effectively. (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

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher 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 can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.