GeForce RTX 2080 Ti vs Radeon RX 6900 XT

Intro

Compare that to the Radeon RX 6900 XT, which comes with GPU clock speed of 1825 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is made up of 5120 SPUs, 320 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 Ti		250 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

The GeForce RTX 2080 Ti should in theory be a small bit faster than the Radeon RX 6900 XT in general. (explain)

GeForce RTX 2080 Ti		630784 MB/sec
Radeon RX 6900 XT		524288 MB/sec
	Difference: 106496 (20%)

Texel Rate

The Radeon RX 6900 XT is quite a bit (approximately 59%) more effective at texture filtering than the GeForce RTX 2080 Ti. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
GeForce RTX 2080 Ti		367200 Mtexels/sec
	Difference: 216800 (59%)

Pixel Rate

The Radeon RX 6900 XT is a lot (approximately 97%) better at anti-aliasing than the GeForce RTX 2080 Ti, and also will be able to handle higher resolutions more effectively. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
GeForce RTX 2080 Ti		118800 Mpixels/sec
	Difference: 114800 (97%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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