Radeon HD 7950 vs Radeon RX 6750 XT

Intro

Compare those specs to the Radeon RX 6750 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 2150 MHz. The GDDR6 memory runs at a frequency of 2250 MHz on this model. It features 2560 SPUs along with 160 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the Radeon RX 6750 XT should theoretically be much superior to the Radeon HD 7950 overall. (explain)

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

Texel Rate

The Radeon RX 6750 XT will be much (more or less 284%) more effective at AF than the Radeon HD 7950. (explain)

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

Pixel Rate

The Radeon RX 6750 XT should be a lot (more or less 438%) faster with regards to anti-aliasing than the Radeon HD 7950, and also should be able to handle higher resolutions more effectively. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon HD 7950		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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.