Radeon RX 560 vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which features GPU clock speed of 1825 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is comprised of 4608 Stream Processors, 288 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 220 Watts (275%)

Memory Bandwidth

Performance-wise, the Radeon RX 6800 XT should in theory be quite a bit superior to the Radeon RX 560 overall. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 409600 (357%)

Texel Rate

The Radeon RX 6800 XT is much (about 599%) better at AF than the Radeon RX 560. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 450400 (599%)

Pixel Rate

The Radeon RX 6800 XT is much (about 1143%) better at FSAA than the Radeon RX 560, and able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 214800 (1143%)

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 moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core 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 per second.

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