Radeon RX 6950 XT vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which has GPU core speed of 1500 MHz, and 20480 MB of GDDR6 RAM running at 2500 MHz through a 320-bit bus. It also is made up of 5376 SPUs, 336 TAUs, and 192 Raster Operation Units.

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

Theoretically speaking, the Radeon RX 7900 XT should be much 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 a lot (about 22%) better at texture filtering 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

The Radeon RX 7900 XT will be a bit (about 17%) more effective at FSAA than the Radeon RX 6950 XT, and should be capable of handling higher screen resolutions more effectively. (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: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 can be applied per second. This figure is worked out by multiplying the total number of 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 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 the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.