Radeon HD 7950 vs Radeon RX 6950 XT

Intro

Compare those specs to the Radeon RX 6950 XT, which comes with a core clock frequency of 1925 MHz and a GDDR6 memory speed of 2250 MHz. It also features a 256-bit memory bus, and uses a 7 nm design. It features 5120 SPUs, 320 TAUs, and 128 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950		200 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 135 Watts (68%)

Memory Bandwidth

Performance-wise, the Radeon RX 6950 XT should in theory be much better than the Radeon HD 7950 overall. (explain)

Radeon RX 6950 XT		589824 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 349824 (146%)

Texel Rate

The Radeon RX 6950 XT should be a lot (approximately 588%) more effective at texture filtering than the Radeon HD 7950. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 526400 (588%)

Pixel Rate

The Radeon RX 6950 XT will be much (more or less 863%) faster with regards to AA than the Radeon HD 7950, and should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 220800 (863%)

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 information (measured in megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.