For the benefits of a 25MHz clock against 20MHz, and lower power consumption – less any risk associated with buying a product that is the subject of a legal dispute – you pay a handsome premium of $1 for the Advanced Micro Devices Inc Am386SXL Advanced Micro wants $89 a chip when you buy 1,000-up of the new part (CI No 1,706) where Intel Corp offers the 20MHz 80386SX at $88 a time in the same quantities.