GeForce GTX 660 vs GeForce GTX Titan X

Intro

Compare those specs to the GeForce GTX Titan X, which uses a 28 nm design. nVidia has clocked the core frequency at 1000 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this specific model. It features 3072 SPUs along with 192 Texture Address Units and 96 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX Titan X		17879 points
GeForce GTX 660		5063 points
	Difference: 12816 (253%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the GeForce GTX Titan X should theoretically be a lot superior to the GeForce GTX 660 overall. (explain)

GeForce GTX Titan X		336000 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 191808 (133%)

Texel Rate

The GeForce GTX Titan X is much (approximately 145%) faster with regards to AF than the GeForce GTX 660. (explain)

GeForce GTX Titan X		192000 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 113600 (145%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX Titan X is the winner, by far. (explain)

GeForce GTX Titan X		96000 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 72480 (308%)

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 information (in units of MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.