GeForce RTX 4080 vs Radeon RX 6600 XT

Intro

Compare all of that to the Radeon RX 6600 XT, which has clock speeds of 1968 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
GeForce RTX 4080		320 Watts
	Difference: 160 Watts (100%)

Memory Bandwidth

The GeForce RTX 4080, in theory, should perform much faster than the Radeon RX 6600 XT in general. (explain)

GeForce RTX 4080		734003 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 471859 (180%)

Texel Rate

The GeForce RTX 4080 should be much (about 166%) faster with regards to AF than the Radeon RX 6600 XT. (explain)

GeForce RTX 4080		670320 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 418416 (166%)

Pixel Rate

The GeForce RTX 4080 should be quite a bit (about 96%) better at anti-aliasing than the Radeon RX 6600 XT, and should be able to handle higher screen resolutions more effectively. (explain)

GeForce RTX 4080		246960 Mpixels/sec
Radeon RX 6600 XT		125952 Mpixels/sec
	Difference: 121008 (96%)

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 (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.