Radeon RX 5700 XT vs Radeon RX 6800 XT

Intro

Compare all of that to the Radeon RX 6800 XT, which uses a 7 nm design. AMD has clocked the core frequency at 1825 MHz. The GDDR6 memory runs at a speed of 2000 MHz on this specific model. It features 4608 SPUs as well as 288 Texture Address Units and 128 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 XT		300 Watts
	Difference: 75 Watts (33%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 XT should perform just a bit faster than the Radeon RX 5700 XT overall. (explain)

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

Texel Rate

The Radeon RX 6800 XT will be quite a bit (about 105%) faster with regards to anisotropic filtering than the Radeon RX 5700 XT. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 5700 XT		256800 Mtexels/sec
	Difference: 268800 (105%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6800 XT is superior to the Radeon RX 5700 XT, by far. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 5700 XT		102720 Mpixels/sec
	Difference: 130880 (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: Bandwidth is the largest amount of data (in units of MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.