Radeon RX 6600 vs Radeon RX 6600 XT

Intro

Compare those specs to the Radeon RX 6600 XT, which has a core clock speed of 1968 MHz and a GDDR6 memory speed of 2000 MHz. It also uses a 128-bit bus, and uses a 7 nm design. It features 2048 SPUs, 128 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon RX 6600 XT will be 14% faster than the Radeon RX 6600 overall, due to its higher data rate. (explain)

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

Texel Rate

The Radeon RX 6600 XT is a lot (more or less 38%) more effective at anisotropic 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

The Radeon RX 6600 XT is a lot (about 21%) better at FSAA than the Radeon RX 6600, and also able to handle higher screen resolutions without slowing down too much. (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: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.