alonsolarowe writes: The newly-released Nvidia GeForce GTX 670 carries the exact same Kepler GK104 GPU as the $500 GTX 680, but with one out of eight SMX clusters disabled, barely lower core speeds, and SLI limited to three-way. With two dual-link DVI, an HDMI, and a DisplayPort connector, the GTX 670 can contend with AMD's Eyefinity. Unfortunately, that X79 issue preventing PCIe 3.0 on the GTX 680 also affects the 670, so the PCIe bus still only runs at PCIe 2.0 transfer rates. Even so, the GTX 670 performs better than the AMD Radeon HD 7950 which carries an equal MSRP of $400, and is on par with the AMD Radeon HD 7970 which costs $80 more. Versus Nvidia'a own $500 GTX 680, the 670 comes up short. Fortunately for thrifty enthusiasts, a quick on air overclock can close the distance for free. In terms of efficiency, the GTX 670 uses only slightly more power than the Radeon HD 7950, while it clobbers the 7970. Assuming Nvidia can meet demand, the GeForce GTX 670 could be the best value in high-end graphics cards today.