Radeon RX 480 vs Radeon RX 6800 XT

Intro

Compare those specs to the Radeon RX 6800 XT, which comes with clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 4608 SPUs as well as 288 Texture Address Units and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480		150 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 150 Watts (100%)

Memory Bandwidth

The Radeon RX 6800 XT should in theory be much faster than the Radeon RX 480 overall. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 480		262144 MB/sec
	Difference: 262144 (100%)

Texel Rate

The Radeon RX 6800 XT should be quite a bit (more or less 226%) more effective at texture filtering than the Radeon RX 480. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 480		161280 Mtexels/sec
	Difference: 364320 (226%)

Pixel Rate

The Radeon RX 6800 XT is much (about 552%) faster with regards to anti-aliasing than the Radeon RX 480, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 480		35840 Mpixels/sec
	Difference: 197760 (552%)

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 largest amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units 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 most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.