Geforce GTX 1080 Ti vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which has 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 makes use of a 7 nm design. It is comprised of 3840 SPUs, 240 TAUs, and 96 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

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

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

Texel Rate

The Radeon RX 6800 is much (about 23%) better at AF 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 will be quite a bit (about 25%) better at full screen anti-aliasing than the Geforce GTX 1080 Ti, and should be capable of handling higher resolutions without losing too much performance. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated 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 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 worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.