Nvidia Titan Xp vs Radeon R9 M395X

Intro

Compare all that to the Radeon R9 M395X, which uses a 28 nm design. AMD has set the core speed at 723 MHz. The GDDR5 RAM is set to run at a frequency of 1250 MHz on this specific card. 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 M395X		125 Watts
Nvidia Titan Xp		250 Watts
	Difference: 125 Watts (100%)

Memory Bandwidth

Theoretically speaking, the Nvidia Titan Xp will be 251% faster than the Radeon R9 M395X overall, due to its greater data rate. (explain)

Nvidia Titan Xp		560845 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 400845 (251%)

Texel Rate

The Nvidia Titan Xp will be much (more or less 310%) more effective at texture filtering than the Radeon R9 M395X. (explain)

Nvidia Titan Xp		379680 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 287136 (310%)

Pixel Rate

The Nvidia Titan Xp should be quite a bit (about 556%) faster with regards to anti-aliasing than the Radeon R9 M395X, and also should be capable of handling higher resolutions more effectively. (explain)

Nvidia Titan Xp		151872 Mpixels/sec
Radeon R9 M395X		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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.