Radeon RX 550 vs Radeon RX 6800 XT

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 250 Watts (500%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 XT will be 357% quicker than the Radeon RX 550 overall, because of its higher bandwidth. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 409600 (357%)

Texel Rate

The Radeon RX 6800 XT is quite a bit (more or less 1393%) better at anisotropic filtering than the Radeon RX 550. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 490400 (1393%)

Pixel Rate

The Radeon RX 6800 XT will be a lot (approximately 1227%) better at full screen anti-aliasing than the Radeon RX 550, and also capable of handling higher resolutions more effectively. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 216000 (1227%)

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 data (measured in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.