Radeon HD 7950 vs Radeon RX 6600

Intro

Compare that to the Radeon RX 6600, which has a GPU core clock speed of 1626 MHz, and 8192 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 1792 SPUs, 112 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon HD 7950		200 Watts
	Difference: 68 Watts (52%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 should be 5% faster than the Radeon RX 6600 in general, due to its greater data rate. (explain)

Radeon HD 7950		240000 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 6600 should be a lot (more or less 103%) faster with regards to texture filtering than the Radeon HD 7950. (explain)

Radeon RX 6600		182112 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 92512 (103%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6600 is the winner, by far. (explain)

Radeon RX 6600		104064 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 78464 (307%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock 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 better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also 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 bandwidth is, the lower the potential to reach the maximum fill rate.