Apple could be preparing the launch of new iMac models

The new iMac models would be equipped with Haswell chips from Intel.

According to AppleInsider, U.S. retailers are offering significant discounts for custom-configured iMacs and the units available in their inventory have decreased significantly.

Best Buy, Amazon and MacMall have offer discounts for the four standard iMac retail configurations somewhere between $100 and $150.

iMacs powered by Haswell chips could be launched by late August, according to the latest rumors.