GeForce RTX 3080 Ti vs Radeon R9 M395X

Intro

Compare all that to the Radeon R9 M395X, which comes with a core clock speed of 723 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 225 Watts (180%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 Ti should theoretically be a lot superior to the Radeon R9 M395X in general. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 774297 (484%)

Texel Rate

The GeForce RTX 3080 Ti should be much (more or less 372%) faster with regards to AF than the Radeon R9 M395X. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 344256 (372%)

Pixel Rate

The GeForce RTX 3080 Ti should be much (more or less 561%) better at full screen anti-aliasing than the Radeon R9 M395X, and also will be capable of handling higher resolutions better. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 129744 (561%)

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 max amount of information (in units of megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.