Radeon RX 580 vs Radeon RX 6600

Intro

Compare that to the Radeon RX 6600, which features a clock frequency of 1626 MHz and a GDDR6 memory frequency of 1750 MHz. It also makes use of a 128-bit bus, and makes use of a 7 nm design. It is comprised of 1792 SPUs, 112 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon RX 580		185 Watts
	Difference: 53 Watts (40%)

Memory Bandwidth

The Radeon RX 580, in theory, should be a little bit faster than the Radeon RX 6600 overall. (explain)

Radeon RX 580		262144 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 32768 (14%)

Texel Rate

The Radeon RX 6600 will be a bit (more or less 1%) better at anisotropic filtering than the Radeon RX 580. (explain)

Radeon RX 6600		182112 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 1104 (1%)

Pixel Rate

The Radeon RX 6600 will be a lot (more or less 159%) faster with regards to AA than the Radeon RX 580, and should be able to handle higher screen resolutions better. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 63840 (159%)

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 max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.