GeForce RTX 2080 vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which comes with a core clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 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 2080		215 Watts
	Difference: 90 Watts (72%)

Memory Bandwidth

In theory, the GeForce RTX 2080 should be 187% quicker than the Radeon R9 M395X in general, because of its higher bandwidth. (explain)

GeForce RTX 2080		458752 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 298752 (187%)

Texel Rate

The GeForce RTX 2080 is a lot (approximately 201%) better at anisotropic filtering than the Radeon R9 M395X. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 186216 (201%)

Pixel Rate

The GeForce RTX 2080 is much (more or less 319%) more effective at FSAA than the Radeon R9 M395X, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 73824 (319%)

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 (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, the result should 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.