Nvidia Titan Xp vs Radeon R9 M390X

Intro

Compare those specifications to the Radeon R9 M390X, which features core speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
Nvidia Titan Xp		250 Watts
	Difference: 125 Watts (100%)

Memory Bandwidth

Performance-wise, the Nvidia Titan Xp should theoretically be a lot superior to the Radeon R9 M390X in general. (explain)

Nvidia Titan Xp		560845 MB/sec
Radeon R9 M390X		160000 MB/sec
	Difference: 400845 (251%)

Texel Rate

The Nvidia Titan Xp will be a lot (approximately 310%) better at texture filtering than the Radeon R9 M390X. (explain)

Nvidia Titan Xp		379680 Mtexels/sec
Radeon R9 M390X		92544 Mtexels/sec
	Difference: 287136 (310%)

Pixel Rate

If running with a high resolution is important to you, then the Nvidia Titan Xp is superior to the Radeon R9 M390X, and very much so. (explain)

Nvidia Titan Xp		151872 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 128736 (556%)

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 (measured in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If 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 can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.