GeForce GTX Titan X vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which comes with a GPU core clock speed of 723 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce GTX Titan X		250 Watts
	Difference: 125 Watts (100%)

Memory Bandwidth

The GeForce GTX Titan X should in theory be much faster than the Radeon R9 M395X overall. (explain)

GeForce GTX Titan X		336000 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 176000 (110%)

Texel Rate

The GeForce GTX Titan X should be a lot (approximately 107%) more effective at texture filtering than the Radeon R9 M395X. (explain)

GeForce GTX Titan X		192000 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 99456 (107%)

Pixel Rate

The GeForce GTX Titan X will be quite a bit (approximately 315%) more effective at FSAA than the Radeon R9 M395X, and capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX Titan X		96000 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 72864 (315%)

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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.