GeForce RTX 3080 Ti vs Radeon R9 M395X

Intro

Compare all of that to the Radeon R9 M395X, which comes with GPU clock speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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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

As far as performance goes, the GeForce RTX 3080 Ti should in theory be much superior to the Radeon R9 M395X overall. (explain)

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

Texel Rate

The GeForce RTX 3080 Ti is a lot (about 372%) more effective at texture filtering 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 will be a lot (approximately 561%) better at FSAA than the Radeon R9 M395X, and will be able to handle higher screen resolutions more effectively. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.