Radeon RX 5500 vs Radeon RX 6800 XT

Intro

Compare all that to the Radeon RX 6800 XT, which comes with a clock speed of 1825 MHz and a GDDR6 memory speed of 2000 MHz. It also uses a 256-bit bus, and uses a 7 nm design. It features 4608 SPUs, 288 TAUs, and 128 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 150 Watts (100%)

Memory Bandwidth

Performance-wise, the Radeon RX 6800 XT should theoretically be much better than the Radeon RX 5500 in general. (explain)

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

Texel Rate

The Radeon RX 6800 XT should be much (approximately 258%) better at AF than the Radeon RX 5500. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 5500		146960 Mtexels/sec
	Difference: 378640 (258%)

Pixel Rate

The Radeon RX 6800 XT should be quite a bit (more or less 337%) faster with regards to AA than the Radeon RX 5500, and also should be capable of handling higher screen resolutions better. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 5500		53440 Mpixels/sec
	Difference: 180160 (337%)

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 (measured in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.