Radeon RX 5600 vs Radeon RX 6600

Intro

Compare all that to the Radeon RX 6600, which makes use of a 7 nm design. AMD has set the core speed at 1626 MHz. The GDDR6 memory runs at a speed of 1750 MHz on this particular model. It features 1792 SPUs as well as 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 5600		150 Watts
	Difference: 18 Watts (14%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5600 will be 29% quicker than the Radeon RX 6600 overall, because of its greater data rate. (explain)

Radeon RX 5600		294912 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 65536 (29%)

Texel Rate

The Radeon RX 6600 is a bit (more or less 3%) better at anisotropic filtering than the Radeon RX 5600. (explain)

Radeon RX 6600		182112 Mtexels/sec
Radeon RX 5600		176000 Mtexels/sec
	Difference: 6112 (3%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6600 is superior to the Radeon RX 5600, not by a very large margin though. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon RX 5600		88000 Mpixels/sec
	Difference: 16064 (18%)

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 (counted in megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 can be applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few 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.