Radeon HD 7950 3GB vs Radeon RX 6600 XT

Intro

Compare those specifications to the Radeon RX 6600 XT, which has GPU core speed of 1968 MHz, and 8192 MB of GDDR6 memory set to run at 2000 MHz through a 128-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 40 Watts (25%)

Memory Bandwidth

The Radeon RX 6600 XT should theoretically be just a bit faster than the Radeon HD 7950 3GB in general. (explain)

Radeon RX 6600 XT		262144 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 22144 (9%)

Texel Rate

The Radeon RX 6600 XT is quite a bit (more or less 181%) more effective at texture filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 162304 (181%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6600 XT is superior to the Radeon HD 7950 3GB, and very much so. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 100352 (392%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.