Radeon RX 5500 XT vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which has a clock speed of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also makes use of a 256-bit memory bus, and makes use of a 7 nm design. It is made up of 3840 SPUs, 240 TAUs, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
Radeon RX 6800		250 Watts
	Difference: 120 Watts (92%)

Memory Bandwidth

In theory, the Radeon RX 6800 should be 129% quicker than the Radeon RX 5500 XT in general, because of its greater bandwidth. (explain)

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

Texel Rate

The Radeon RX 6800 will be much (more or less 170%) better at AF than the Radeon RX 5500 XT. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX 5500 XT		151096 Mtexels/sec
	Difference: 256904 (170%)

Pixel Rate

The Radeon RX 6800 will be much (about 197%) more effective at AA than the Radeon RX 5500 XT, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX 5500 XT		54944 Mpixels/sec
	Difference: 108256 (197%)

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 moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 are applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out 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 outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.