Radeon RX 5500 XT vs Radeon RX 6600 XT

Intro

Compare that to the Radeon RX 6600 XT, which features GPU clock speed of 1968 MHz, and 8192 MB of GDDR6 RAM running at 2000 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 64 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 6600 XT		160 Watts
	Difference: 30 Watts (23%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6600 XT is 14% quicker than the Radeon RX 5500 XT in general, due to its higher data rate. (explain)

Radeon RX 6600 XT		262144 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 32768 (14%)

Texel Rate

The Radeon RX 6600 XT will be much (approximately 67%) better at anisotropic filtering than the Radeon RX 5500 XT. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
Radeon RX 5500 XT		151096 Mtexels/sec
	Difference: 100808 (67%)

Pixel Rate

The Radeon RX 6600 XT should be a lot (about 129%) more effective at anti-aliasing than the Radeon RX 5500 XT, and should be capable of handling higher resolutions better. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon RX 5500 XT		54944 Mpixels/sec
	Difference: 71008 (129%)

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 max amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.