GeForce GTX 660 vs Nvidia Titan X

Intro

Compare those specifications to the Nvidia Titan X, which makes use of a 16 nm design. nVidia has set the core frequency at 1417 MHz. The GDDR5X memory works at a speed of 1251 MHz on this model. It features 3584 SPUs as well as 224 Texture Address Units and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Nvidia Titan X		250 Watts
	Difference: 110 Watts (79%)

Memory Bandwidth

As far as performance goes, the Nvidia Titan X should in theory be much superior to the GeForce GTX 660 overall. (explain)

Nvidia Titan X		491520 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 347328 (241%)

Texel Rate

The Nvidia Titan X is a lot (about 305%) better at texture filtering than the GeForce GTX 660. (explain)

Nvidia Titan X		317408 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 239008 (305%)

Pixel Rate

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

Nvidia Titan X		136032 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 112512 (478%)

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 information (counted in MB per second) that can be transported over 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 it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the 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 maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.