GeForce GTX 580 3GB 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 RAM. It features 2048 SPUs as well as 128 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 84 Watts (53%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6600 XT will be 36% quicker than the GeForce GTX 580 3GB in general, due to its higher bandwidth. (explain)

Radeon RX 6600 XT		262144 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 69760 (36%)

Texel Rate

The Radeon RX 6600 XT will be much (about 410%) better at texture filtering than the GeForce GTX 580 3GB. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 202496 (410%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6600 XT is a better choice, by far. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
GeForce GTX 580 3GB		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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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 bandwidth is, the lower the potential to get to the maximum fill rate.