GeForce GTX 580 vs Radeon RX 6600 XT

Intro

Compare all of that to the Radeon RX 6600 XT, which features a clock frequency of 1968 MHz and a GDDR6 memory frequency of 2000 MHz. It also makes use of a 128-bit bus, and makes use of a 7 nm design. It is made up 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 XT		160 Watts
GeForce GTX 580		244 Watts
	Difference: 84 Watts (53%)

Memory Bandwidth

The Radeon RX 6600 XT should theoretically perform much faster than the GeForce GTX 580 in general. (explain)

Radeon RX 6600 XT		262144 MB/sec
GeForce GTX 580		192384 MB/sec
	Difference: 69760 (36%)

Texel Rate

The Radeon RX 6600 XT will be much (approximately 410%) more effective at anisotropic filtering than the GeForce GTX 580. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 202496 (410%)

Pixel Rate

The Radeon RX 6600 XT should be much (about 240%) better at FSAA than the GeForce GTX 580, and also should be able to handle higher resolutions more effectively. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
GeForce GTX 580		37056 Mpixels/sec
	Difference: 88896 (240%)

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 information (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.