Overclocking
Overclocking a Kepler-based card is done by increasing the available power to the card (Power Target) and then increasing the clock offsets for both core and memory. Should you so wish, to push it further, the explicit GPU voltage can also be increased. We simply increased the Power Target to the maximum 122 per cent and inched up clocks.
The overclock isn't as impressive as on some GTX 680s - the available Power Target is lower, for starters - but should still avail a healthy dollop of extra performance, especially when the elevated GPU Boost kicks in.
That extra oomph overcomes any architecture-related shortfalls the GTX 670 has when compared to GTX 680. It's sensible to assume partners will launch GTX 670 OC models that replicate the performance of a stock GTX 680. Which would you then choose, huh?
