Radeon RX 6950 XT vs Radeon RX 7900 XT

Intro

Compare all that to the Radeon RX 7900 XT, which comes with core speeds of 1500 MHz on the GPU, and 2500 MHz on the 20480 MB of GDDR6 memory. It features 5376 SPUs as well as 336 Texture Address Units and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 7900 XT		300 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 35 Watts (12%)

Memory Bandwidth

The Radeon RX 7900 XT should theoretically be a lot faster than the Radeon RX 6950 XT in general. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon RX 6950 XT		589824 MB/sec
	Difference: 229376 (39%)

Texel Rate

The Radeon RX 6950 XT is quite a bit (more or less 22%) better at AF than the Radeon RX 7900 XT. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon RX 7900 XT		504000 Mtexels/sec
	Difference: 112000 (22%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 7900 XT is superior to the Radeon RX 6950 XT, though not by far. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon RX 6950 XT		246400 Mpixels/sec
	Difference: 41600 (17%)

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 information (measured in MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 max fill rate.