Radeon RX 6800 vs Radeon RX 6950 XT

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800		250 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 85 Watts (34%)

Memory Bandwidth

The Radeon RX 6950 XT should theoretically be a bit faster than the Radeon RX 6800 in general. (explain)

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

Texel Rate

The Radeon RX 6950 XT should be much (approximately 51%) more effective at AF than the Radeon RX 6800. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon RX 6800		408000 Mtexels/sec
	Difference: 208000 (51%)

Pixel Rate

The Radeon RX 6950 XT is quite a bit (about 51%) faster with regards to FSAA than the Radeon RX 6800, and also should be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon RX 6800		163200 Mpixels/sec
	Difference: 83200 (51%)

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 largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 are applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.