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Galaxy kicked off its GeForce GTX 660 Ti lineup with three models, the GTX 660 Ti 2 GB, the GTX 660 Ti 2 GB GC (factory-overclocked), and the GTX 660 Ti 3GB GC. The 2 GB variants use Galaxy's cost-effective twin-fan cooling solution, combined with a custom-design PCB that draws power from 6+8 pin power connectors. The GC variant offers clock speeds of 1006 MHz core, 1084 MHz GPU Boost, and 6.00 GHz memory. It achieves 2 GB of memory across a 192-bit wide memory interface using eight 2 Gbit memory chips, in which four chips share two 32-bit wide paths.

Galaxy's 3 GB GeForce GTX 660 Ti GC comes with the same clock speeds as the 2 GB GC, 1006 MHz core, 1084 MHz GPU Boost, and 6.00 GHz memory, but uses the higher-grade dual-fan cooler which has been featured on GeForce GTX 670 and GTX 680 graphics cards by the company. It uses the same exact PCB as the GTX 680. It achieves 3 GB of memory using twelve 2 Gbit memory chips, two chips per 32-bit wide path. Based on the 28 nm GK104 silicon, the GeForce GTX 660 Ti packs 1344 CUDA cores, 112 TMUs, 24 ROPs, and a 192-bit wide GDDR5 memory interface.



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