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Nvidia has quietly released the GeForce GTX 660 graphics card for the OEM market. Like its GTX 660 Ti sibling introduced last week, the GTX 660 OEM is based on the same GK104 core but with 6 SMX units enabled for a total of 1152 CUDA cores and 96 texture units. That’s down slightly from 1344 CUDA cores and 112 texture units on the retail GTX 660 Ti.
Frequencies are also knocked down to 823MHz core, with an 888MHz boost clock, and 5,800MHz memory. The card will come in 1.5GB and 3GB GDDR5 configurations and feature a 192-bit memory bus, offering a maximum bandwidth of 134GB/s versus the 660 Ti’s 144GB/s.
All things considered AnandTech estimates the GTX 660 OEM should provide around 75% of the performance of the GTX 660 Ti. Along with the lower performance comes a lower TDP of 130W as well, enabling Nvidia to release this card with a single 6-pin PCIe connector. The same standard dual-slot form factor is maintained as is the four-display output configuration including a pair of dual-link DVI-I connectors, a single HDMI 1.4a port, and a DisplayPort 1.2 socket. HDMI 1.4 and DP 1.2 are both supported.
Like other members of the Kepler family, the GTX 660 OEM card supports OpenGL 4.3, DirectX 11, 3D Vision, PhysX, GPU Boost and Adaptive VSync, and both TXAA and FXAA.
A retail version of the GTX 660 as well as a lower-spec GTX 650 are reportedly scheduled for release in September and will help Nvidia compete in the $200 - $250 price bracket.
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