Radeon RX 6600 vs Radeon RX 6600 XT

Intro

Compare all of that to the Radeon RX 6600 XT, which has a core clock speed of 1968 MHz and a GDDR6 memory frequency of 2000 MHz. It also features a 128-bit memory bus, and uses a 7 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon RX 6600 XT		160 Watts
	Difference: 28 Watts (21%)

Memory Bandwidth

In theory, the Radeon RX 6600 XT should perform just a bit faster than the Radeon RX 6600 overall. (explain)

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

Texel Rate

The Radeon RX 6600 XT should be quite a bit (about 38%) better at texture filtering than the Radeon RX 6600. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
Radeon RX 6600		182112 Mtexels/sec
	Difference: 69792 (38%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6600 XT is superior to the Radeon RX 6600, by far. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon RX 6600		104064 Mpixels/sec
	Difference: 21888 (21%)

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 megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling 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 graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.