Radeon RX 6900 XT vs Radeon RX 6950 XT

Intro

Compare all that to the Radeon RX 6950 XT, which features a clock speed of 1925 MHz and a GDDR6 memory speed of 2250 MHz. It also makes use of a 256-bit bus, and makes use of a 7 nm design. It features 5120 SPUs, 320 Texture Address Units, and 128 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6900 XT		300 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 35 Watts (12%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6950 XT should perform a bit faster than the Radeon RX 6900 XT overall. (explain)

Radeon RX 6950 XT		589824 MB/sec
Radeon RX 6900 XT		524288 MB/sec
	Difference: 65536 (13%)

Texel Rate

The Radeon RX 6950 XT should be a small bit (about 5%) better at anisotropic filtering than the Radeon RX 6900 XT. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon RX 6900 XT		584000 Mtexels/sec
	Difference: 32000 (5%)

Pixel Rate

The Radeon RX 6950 XT will be just a bit (about 5%) more effective at full screen anti-aliasing than the Radeon RX 6900 XT, and will be able to handle higher resolutions more effectively. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon RX 6900 XT		233600 Mpixels/sec
	Difference: 12800 (5%)

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 over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the 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 most pixels that 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 amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to 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.