GeForce RTX 2080 Ti vs Radeon RX 6800 XT

Intro

Compare those specs to the Radeon RX 6800 XT, which makes use of a 7 nm design. AMD has set the core frequency at 1825 MHz. The GDDR6 RAM runs at a speed of 2000 MHz on this card. It features 4608 SPUs as well as 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

In theory, the GeForce RTX 2080 Ti should be just a bit faster than the Radeon RX 6800 XT overall. (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 will be a lot (about 43%) better at 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

The Radeon RX 6800 XT should be a lot (about 97%) faster with regards to AA than the GeForce RTX 2080 Ti, and also capable of handling higher resolutions better. (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 maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.