Radeon RX 6800 XT vs Radeon RX 6950 XT

Intro

Compare those specifications to the Radeon RX 6950 XT, which has a clock speed of 1925 MHz and a GDDR6 memory speed of 2250 MHz. It also makes use of 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 RX 6800 XT		300 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 35 Watts (12%)

Memory Bandwidth

The Radeon RX 6950 XT, in theory, should be just a bit faster than the Radeon RX 6800 XT overall. (explain)

Radeon RX 6950 XT		589824 MB/sec
Radeon RX 6800 XT		524288 MB/sec
	Difference: 65536 (13%)

Texel Rate

The Radeon RX 6950 XT will be just a bit (more or less 17%) better at anisotropic filtering than the Radeon RX 6800 XT. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon RX 6800 XT		525600 Mtexels/sec
	Difference: 90400 (17%)

Pixel Rate

The Radeon RX 6950 XT will be just a bit (about 5%) faster with regards to full screen anti-aliasing than the Radeon RX 6800 XT, and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon RX 6800 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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.