GeForce RTX 3080 Ti vs Radeon RX Vega 56

Intro

Compare that to the Radeon RX Vega 56, which features GPU core speed of 1156 MHz, and 8192 MB of HBM2 RAM running at 1600 MHz through a 2048-bit bus. It also features 3584 SPUs, 224 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56		210 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 140 Watts (67%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 Ti should in theory be quite a bit superior to the Radeon RX Vega 56 in general. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon RX Vega 56		419430 MB/sec
	Difference: 514867 (123%)

Texel Rate

The GeForce RTX 3080 Ti should be much (more or less 69%) better at AF than the Radeon RX Vega 56. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon RX Vega 56		258944 Mtexels/sec
	Difference: 177856 (69%)

Pixel Rate

The GeForce RTX 3080 Ti is a lot (approximately 107%) better at anti-aliasing than the Radeon RX Vega 56, and should be able to handle higher screen resolutions better. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon RX Vega 56		73984 Mpixels/sec
	Difference: 78896 (107%)

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 maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.