GeForce GTX 660 vs Nvidia Titan X

Intro

Compare those specifications to the Nvidia Titan X, which features core speeds of 1417 MHz on the GPU, and 1251 MHz on the 12288 MB of GDDR5X RAM. It features 3584 SPUs along with 224 Texture Address Units and 96 ROPs.

Display Graphs

Hide Graphs

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

In theory, the Nvidia Titan X should be 241% faster than the GeForce GTX 660 in general, due to its higher bandwidth. (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%) more effective 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 using lots of anti-aliasing is important to you, then the Nvidia Titan X is superior to the GeForce GTX 660, and very much so. (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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one 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 this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the 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 the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.