Is it risky to overclock GPU memory by 1 GHz? - Quora
AMD has apparently stopped stocking GPUs in EU, and due to EU laws offer a refund since a replacement is not "available". They point to buy from the global (USA) store of
How to Overclock Your GPU (Graphics Card) in 6 Steps | AVG
A power-performance balanced network-on-chip for mixed CPU-GPU systems - ScienceDirect