Radeon RX 5700 XT vs Radeon RX 6800

Intro

Compare those specifications to the Radeon RX 6800, which comes with clock speeds of 1700 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 3840 SPUs as well as 240 TAUs and 96 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700 XT		225 Watts
Radeon RX 6800		250 Watts
	Difference: 25 Watts (11%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 is 14% faster than the Radeon RX 5700 XT in general, because of its higher bandwidth. (explain)

Radeon RX 6800		524288 MB/sec
Radeon RX 5700 XT		458752 MB/sec
	Difference: 65536 (14%)

Texel Rate

The Radeon RX 6800 will be quite a bit (approximately 59%) faster with regards to anisotropic filtering than the Radeon RX 5700 XT. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX 5700 XT		256800 Mtexels/sec
	Difference: 151200 (59%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6800 is superior to the Radeon RX 5700 XT, and very much so. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX 5700 XT		102720 Mpixels/sec
	Difference: 60480 (59%)

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 (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of 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 speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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