GeForce RTX 2080 Ti vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which comes with core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 4608 SPUs along with 288 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 6800 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 Ti should be 20% faster than the Radeon RX 6800 XT overall, due to its greater data rate. (explain)

GeForce RTX 2080 Ti		630784 MB/sec
Radeon RX 6800 XT		524288 MB/sec
	Difference: 106496 (20%)

Texel Rate

The Radeon RX 6800 XT is quite a bit (about 43%) faster with regards to anisotropic filtering than the GeForce RTX 2080 Ti. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
GeForce RTX 2080 Ti		367200 Mtexels/sec
	Difference: 158400 (43%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6800 XT is superior to the GeForce RTX 2080 Ti, by far. (explain)

Radeon RX 6800 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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum 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 speed of the chip. The higher this number, the better the 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 that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.