
Are the following mentions coreferent?:
<m> buying </m> in Advanced Micro Devices Inc. shook up the personal computer industry by buying ATI Technologies Inc. for US $ 5.4-billion yesterday, opening up a new front in the battle with Intel Corp. to control the computer chip market. 
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<m> buys </m> in Advanced Micro Devices is acquiring Sea Micro today for $334 million to get into energy - efficient microservers. Sea Micro has been disruptive because it can pack a lot of computing power in a server rack that is about a sixth of the usual size. Sea Micro has been disruptive because it can pack a lot of computing power into a given amount of space and use a lot less electrical power. 