Intent on delivering the message that the PowerPC chip is a mass market contender, Motorola Inc today plans to hang price tags of $280 each for the 50MHz 601 and $374 each for the 66MHz 601 in 20,000-up quantities. Its pricing severely undercuts the last known price points Intel Corp was considering for the Pentium chips: $995 for the 60MHz and $1,200 for the 66MHz, though $795 and $995 are now forecast. The 601s that Motorola intends shipping in high volume in the third quarter will be fabricated by IBM Corp under the tie-up with Motorola and Apple Computer Inc.