GeForce GTX 660 Ti vs Geforce GTX 670

Intro

The GeForce GTX 660 Ti makes use of a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 RAM is set to run at a frequency of 1500 MHz on this model. It features 1344 SPUs along with 112 Texture Address Units and 24 ROPs.

Compare that to the Geforce GTX 670, which features a clock frequency of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is made up of 1344 SPUs, 112 Texture Address Units, and 32 ROPs.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 660 Ti Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Geforce GTX 670 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 660 Ti	Geforce GTX 670
Manufacturer	nVidia	nVidia
Year	August 2012	May 2012
Code Name	GK104	GK104
Fab Process	28 nm	28 nm
Bus	PCIe 3.0 x16	PCIe 3.0 x16
Memory	2048 MB	2048 MB
Core Speed	915 MHz	915 MHz
Shader Speed	915 MHz	915 MHz
Memory Speed	1500 MHz (6000 MHz effective)	1500 MHz (6000 MHz effective)
Unified Shaders	1344	1344
Texture Mapping Units	112	112
Render Output Units	24	32
Bus Type	GDDR5	GDDR5
Bus Width	192-bit	256-bit
DirectX Version	DirectX 11.1	DirectX 11.1
OpenGL Version	OpenGL 4.3	OpenGL 4.2
Power (Max TDP)	150 watts	170 watts
Shader Model	5.0	5.0
Bandwidth	144000 MB/sec	192000 MB/sec
Texel Rate	102480 Mtexels/sec	102480 Mtexels/sec
Pixel Rate	21960 Mpixels/sec	29280 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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