Radeon RX 5500 XT vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which has GPU core speed of 1825 MHz, and 16384 MB of GDDR6 memory running at 2000 MHz through a 256-bit bus. It also is made up of 4608 SPUs, 288 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 170 Watts (131%)

Memory Bandwidth

The Radeon RX 6800 XT should theoretically be much faster than the Radeon RX 5500 XT overall. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 294912 (129%)

Texel Rate

The Radeon RX 6800 XT should be quite a bit (more or less 248%) faster with regards to AF than the Radeon RX 5500 XT. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 5500 XT		151096 Mtexels/sec
	Difference: 374504 (248%)

Pixel Rate

The Radeon RX 6800 XT will be much (more or less 325%) more effective at full screen anti-aliasing than the Radeon RX 5500 XT, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 5500 XT		54944 Mpixels/sec
	Difference: 178656 (325%)

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 (in units of MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 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 amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.