GeForce RTX 3080 Ti vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which uses a 7 nm design. AMD has clocked the core speed at 1700 MHz. The GDDR6 memory works at a speed of 2000 MHz on this specific model. It features 3840 SPUs as well as 240 Texture Address Units and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800		250 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 100 Watts (40%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 Ti should perform a lot faster than the Radeon RX 6800 in general. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon RX 6800		524288 MB/sec
	Difference: 410009 (78%)

Texel Rate

The GeForce RTX 3080 Ti is a little bit (more or less 7%) better at AF than the Radeon RX 6800. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon RX 6800		408000 Mtexels/sec
	Difference: 28800 (7%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6800 is a better choice, but only just. (explain)

Radeon RX 6800		163200 Mpixels/sec
GeForce RTX 3080 Ti		152880 Mpixels/sec
	Difference: 10320 (7%)

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 (in units of megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 ability to get to the maximum fill rate.