Radeon HD 7950 3GB vs Radeon RX 6750 XT

Intro

Compare all of that to the Radeon RX 6750 XT, which comes with GPU clock speed of 2150 MHz, and 12288 MB of GDDR6 memory set to run at 2250 MHz through a 192-bit bus. It also is comprised of 2560 Stream Processors, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950 3GB		200 Watts
Radeon RX 6750 XT		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6750 XT should in theory be a lot superior to the Radeon HD 7950 3GB in general. (explain)

Radeon RX 6750 XT		442368 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 202368 (84%)

Texel Rate

The Radeon RX 6750 XT is quite a bit (about 284%) more effective at anisotropic filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 254400 (284%)

Pixel Rate

The Radeon RX 6750 XT should be quite a bit (about 438%) more effective at AA than the Radeon HD 7950 3GB, and also should be able to handle higher resolutions better. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 112000 (438%)

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 (measured in MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock 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 per second.

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