Gigabyte GA-Z77-D3H Motherboard – packs a punch at £80

At the beginning of May we reviewed the Gigabyte Z77X-UD5H which delivered great performance at a modest price point around £160. Today we are looking at the budget GA-Z77-D3H which retails in the UK for only £80.
At half the price is this useless for the overclockers on a tight budget, or can it be pushed past 4ghz? What about 4.5ghz? We partner the board up with a Core i7 3770k and a Thermaltake Frio Extreme cooler.