Samsung considering using Hynix memory for extra Galaxy S4 stock

The company makes DRAM chips, and has Apple as its biggest customer.

Supply has tightened over the last year in the DRAM market, and prices have reflected such a move.

Samsung is the world's biggest DRAM maker, and the company uses its own chips for its popular Galaxy smartphones. Samsung expects to have so many S4 available for sale, however, that it has looked into other companies due to diminishing supply.

Analysts believe Samsung can sell 10 million GS4 per month, surpassing its predecessors by a large margin.