GeForce RTX 3080 Ti vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which comes with a core clock speed of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also features a 256-bit bus, and makes use of a 7 nm design. It is made up of 3840 SPUs, 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

The GeForce RTX 3080 Ti, in theory, should perform much 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 will be a little bit (about 7%) more effective 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

The Radeon RX 6800 will be a bit (about 7%) better at AA than the GeForce RTX 3080 Ti, and also will be capable of handling higher screen resolutions without slowing down too much. (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 largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.