Nvidia Titan X vs Radeon R9 290X

Intro

Compare that to the Radeon R9 290X, which has a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 512-bit bus, and makes use of a 28 nm design. It features 2816 SPUs, 176 TAUs, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan X		250 Watts
Radeon R9 290X		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

The Nvidia Titan X should in theory perform quite a bit faster than the Radeon R9 290X in general. (explain)

Nvidia Titan X		491520 MB/sec
Radeon R9 290X		320000 MB/sec
	Difference: 171520 (54%)

Texel Rate

The Nvidia Titan X will be quite a bit (about 125%) better at texture filtering than the Radeon R9 290X. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon R9 290X		140800 Mtexels/sec
	Difference: 176608 (125%)

Pixel Rate

If running with a high resolution is important to you, then the Nvidia Titan X is the winner, by a large margin. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon R9 290X		51200 Mpixels/sec
	Difference: 84832 (166%)

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 data (measured in MB per second) that can be transferred past the external memory interface within 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, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.