Radeon RX 5700 XT vs Radeon RX 6600 XT

Intro

Compare those specs to the Radeon RX 6600 XT, which uses a 7 nm design. AMD has clocked the core speed at 1968 MHz. The GDDR6 memory is set to run at a speed of 2000 MHz on this model. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 65 Watts (41%)

Memory Bandwidth

In theory, the Radeon RX 5700 XT will be 75% quicker than the Radeon RX 6600 XT overall, because of its higher data rate. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 196608 (75%)

Texel Rate

The Radeon RX 5700 XT is a little bit (about 2%) better at texture filtering than the Radeon RX 6600 XT. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 4896 (2%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6600 XT is superior to the Radeon RX 5700 XT, and very much so. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon RX 5700 XT		102720 Mpixels/sec
	Difference: 23232 (23%)

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 max amount of information (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 interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling 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 card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.