Radeon HD 7970 vs Radeon RX 6600

Intro

Compare those specifications to the Radeon RX 6600, which has core clock speeds of 1626 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 RAM. It features 1792 SPUs as well as 112 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon HD 7970		250 Watts
	Difference: 118 Watts (89%)

Memory Bandwidth

Theoretically, the Radeon HD 7970 should be just a bit faster than the Radeon RX 6600 in general. (explain)

Radeon HD 7970		264000 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 34624 (15%)

Texel Rate

The Radeon RX 6600 is a lot (more or less 54%) better at AF than the Radeon HD 7970. (explain)

Radeon RX 6600		182112 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 63712 (54%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6600 is a better choice, by a large margin. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 74464 (252%)

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 data (counted in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.