NVIDIA GeForce GTX 660 Graphics Processing Unit for desktop market segment is built on Kepler architecture, and was released in September 2012. The GPU is manufactured on 28 nm technology. The card operates at 980 MHz, and can be boosted up to 1.033 GHz. It also features 960 CUDA cores, 80 texture units, together with 20 ROPs. The GeForce GTX 660 comes with 2 GB of GDDR5 memory. Because the memory is GHz, and utilizes 192 bit bus, the effective memory bandwidth is 144.2 GB/s. The GPU supports PCI Express 3.0 interface, and uses 2 slots on the motherboard. The maximum power draw of this model is 140 Watt. For better NVIDIA GeForce GTX 660 gaming and 3D graphics performance, it can be used with up to 3 other GPUs in SLI mode. kindly visit our shop at tomboya street old nation house 1st floor turn on your right side come shop A38:opp fire station near Khoja roundabout.