GeForce RTX 2080 vs Radeon RX 6800 XT

Intro

Compare all of that to the Radeon RX 6800 XT, which uses a 7 nm design. AMD has clocked the core frequency at 1825 MHz. The GDDR6 RAM runs at a speed of 2000 MHz on this particular card. It features 4608 SPUs along with 288 TAUs and 128 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080		215 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 85 Watts (40%)

Memory Bandwidth

The Radeon RX 6800 XT should theoretically perform a small bit faster than the GeForce RTX 2080 overall. (explain)

Radeon RX 6800 XT		524288 MB/sec
GeForce RTX 2080		458752 MB/sec
	Difference: 65536 (14%)

Texel Rate

The Radeon RX 6800 XT should be quite a bit (more or less 89%) better at AF than the GeForce RTX 2080. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
GeForce RTX 2080		278760 Mtexels/sec
	Difference: 246840 (89%)

Pixel Rate

The Radeon RX 6800 XT will be a lot (about 141%) faster with regards to anti-aliasing than the GeForce RTX 2080, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
GeForce RTX 2080		96960 Mpixels/sec
	Difference: 136640 (141%)

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 max amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the 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 amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.