Nvidia Titan X vs Radeon HD 7790

Intro

Compare those specs to the Radeon HD 7790, which has core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 RAM. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Nvidia Titan X		250 Watts
	Difference: 165 Watts (194%)

Memory Bandwidth

Theoretically, the Nvidia Titan X should perform quite a bit faster than the Radeon HD 7790 in general. (explain)

Nvidia Titan X		491520 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 395520 (412%)

Texel Rate

The Nvidia Titan X is much (approximately 467%) better at texture filtering than the Radeon HD 7790. (explain)

Nvidia Titan X		317408 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 261408 (467%)

Pixel Rate

If running with a high resolution is important to you, then the Nvidia Titan X is superior to the Radeon HD 7790, and very much so. (explain)

Nvidia Titan X		136032 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 120032 (750%)

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 max amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 the video 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.