GeForce RTX 3080 Ti vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which comes with a core clock frequency of 1700 MHz and a GDDR6 memory speed of 2000 MHz. It also uses a 256-bit memory bus, and uses a 7 nm design. It features 3840 SPUs, 240 TAUs, and 96 Raster Operation Units.

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

As far as performance goes, the GeForce RTX 3080 Ti should theoretically be quite a bit better than the Radeon RX 6800 overall. (explain)

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

Texel Rate

The GeForce RTX 3080 Ti should be a small bit (about 7%) better at anisotropic filtering 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 running with a high screen resolution is important to you, then the Radeon RX 6800 is superior to the GeForce RTX 3080 Ti, though not by far. (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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines 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 - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.