GeForce RTX 3080 vs Radeon RX 6950 XT

Intro

Compare that to the Radeon RX 6950 XT, which has GPU core speed of 1925 MHz, and 16384 MB of GDDR6 RAM running at 2250 MHz through a 256-bit bus. It also is made up of 5120 SPUs, 320 Texture Address Units, and 128 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce RTX 3080 should perform a lot faster than the Radeon RX 6950 XT in general. (explain)

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

Texel Rate

The Radeon RX 6950 XT should be quite a bit (more or less 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

If using a high screen resolution is important to you, then the Radeon RX 6950 XT is the winner, and very much so. (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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount 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 ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.