Nvidia Titan X vs Radeon R9 M385X

Intro

Compare that to the Radeon R9 M385X, which uses a 28 nm design. AMD has clocked the core speed at 1100 MHz. The GDDR5 RAM works at a speed of 1500 MHz on this particular model. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Nvidia Titan X should in theory be much better than the Radeon R9 M385X in general. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 395520 (412%)

Texel Rate

The Nvidia Titan X will be quite a bit (about 415%) more effective at texture filtering than the Radeon R9 M385X. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 255808 (415%)

Pixel Rate

The Nvidia Titan X will be much (about 673%) better at AA than the Radeon R9 M385X, and also capable of handling higher resolutions more effectively. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 118432 (673%)

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 one second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one 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. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.