GeForce RTX 2080 Ti vs Radeon RX 6800 XT

Intro

Compare all that to the Radeon RX 6800 XT, which features core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 4608 SPUs as well as 288 Texture Address Units and 128 Rasterization Operator Units.

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 will be 20% quicker than the Radeon RX 6800 XT overall, due to its higher 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 should be much (about 43%) better at texture 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 running with a high screen resolution is important to you, then the Radeon RX 6800 XT is the winner, 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 largest amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 number of 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 higher this number, the better the video 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 card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.