GeForce GTX 1080 vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which uses a 7 nm design. AMD has clocked the core speed at 1825 MHz. The GDDR6 RAM works at a frequency of 2000 MHz on this particular model. It features 4608 SPUs along with 288 Texture Address Units and 128 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080		180 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 120 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon RX 6800 XT should in theory be a lot better than the GeForce GTX 1080 in general. (explain)

Radeon RX 6800 XT		524288 MB/sec
GeForce GTX 1080		327680 MB/sec
	Difference: 196608 (60%)

Texel Rate

The Radeon RX 6800 XT should be much (about 104%) better at texture filtering than the GeForce GTX 1080. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
GeForce GTX 1080		257120 Mtexels/sec
	Difference: 268480 (104%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6800 XT is the winner, by far. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
GeForce GTX 1080		102848 Mpixels/sec
	Difference: 130752 (127%)

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 maximum amount of information (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. 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 quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.