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 makes use of a 7 nm design. It is comprised of 2048 SPUs, 128 TAUs, 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

Performance-wise, the Radeon RX 6600 XT should theoretically be a little bit superior to 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 will be quite a bit (about 38%) better 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 should be quite a bit (more or less 21%) faster with regards to full screen anti-aliasing than the Radeon RX 6600, and should be able to handle higher resolutions better. (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 maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once 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, 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 amount of texture units of the card 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.