GeForce RTX 3080 Ti vs Radeon RX Vega 64

Intro

Compare that to the Radeon RX Vega 64, which features clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 memory. It features 4096 SPUs as well as 256 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 64		295 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 55 Watts (19%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 Ti should perform a lot faster than the Radeon RX Vega 64 in general. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon RX Vega 64		495411 MB/sec
	Difference: 438886 (89%)

Texel Rate

The GeForce RTX 3080 Ti should be much (more or less 37%) more effective at AF than the Radeon RX Vega 64. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon RX Vega 64		319232 Mtexels/sec
	Difference: 117568 (37%)

Pixel Rate

The GeForce RTX 3080 Ti is much (approximately 92%) better at AA than the Radeon RX Vega 64, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon RX Vega 64		79808 Mpixels/sec
	Difference: 73072 (92%)

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 (measured in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.