Radeon HD 7950 vs Radeon RX 6600

Intro

Compare those specifications to the Radeon RX 6600, which features GPU clock speed of 1626 MHz, and 8192 MB of GDDR6 RAM set to run at 1750 MHz through a 128-bit bus. It also features 1792 Stream Processors, 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 HD 7950		200 Watts
	Difference: 68 Watts (52%)

Memory Bandwidth

The Radeon HD 7950 should in theory be a small bit faster than the Radeon RX 6600 overall. (explain)

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

Texel Rate

The Radeon RX 6600 is quite a bit (more or less 103%) more effective at AF than the Radeon HD 7950. (explain)

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

Pixel Rate

The Radeon RX 6600 will be much (more or less 307%) more effective at full screen anti-aliasing than the Radeon HD 7950, and should be able to handle higher resolutions while still performing well. (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 max amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 texture map elements (texels) that are applied in one second. This figure 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.