Geforce GTX 1080 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 makes use of a 256-bit bus, and uses a 7 nm design. It is made up of 3840 SPUs, 240 TAUs, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Radeon RX 6800 should in theory be a bit faster than the Geforce GTX 1080 Ti overall. (explain)

Radeon RX 6800		524288 MB/sec
Geforce GTX 1080 Ti		495616 MB/sec
	Difference: 28672 (6%)

Texel Rate

The Radeon RX 6800 should be a lot (about 23%) more effective at texture filtering than the Geforce GTX 1080 Ti. (explain)

Radeon RX 6800		408000 Mtexels/sec
Geforce GTX 1080 Ti		331520 Mtexels/sec
	Difference: 76480 (23%)

Pixel Rate

The Radeon RX 6800 should be much (more or less 25%) faster with regards to full screen anti-aliasing than the Geforce GTX 1080 Ti, and will be able to handle higher resolutions while still performing well. (explain)

Radeon RX 6800		163200 Mpixels/sec
Geforce GTX 1080 Ti		130240 Mpixels/sec
	Difference: 32960 (25%)

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 (counted in megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.