GeForce RTX 3080 vs Radeon RX 6950 XT

Intro

Compare that to the Radeon RX 6950 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 1925 MHz. The GDDR6 memory is set to run at a speed of 2250 MHz on this particular model. It features 5120 SPUs along with 320 Texture Address Units and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080		320 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 15 Watts (5%)

Memory Bandwidth

In theory, the GeForce RTX 3080 is 32% quicker than the Radeon RX 6950 XT overall, due to its higher bandwidth. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon RX 6950 XT		589824 MB/sec
	Difference: 188723 (32%)

Texel Rate

The Radeon RX 6950 XT will be quite a bit (about 57%) faster with regards to texture filtering than the GeForce RTX 3080. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
GeForce RTX 3080		391680 Mtexels/sec
	Difference: 224320 (57%)

Pixel Rate

The Radeon RX 6950 XT will be a lot (about 78%) faster with regards to anti-aliasing than the GeForce RTX 3080, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
GeForce RTX 3080		138240 Mpixels/sec
	Difference: 108160 (78%)

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 megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.