
Are the following mentions coreferent?:
<m> offers </m> in RBC Capital Markets downgraded ATI Technologies to sector perform from outperform after Advanced Micro Devices announced its intention to buy the Canadian graphics chip-maker for $ 5.4 billion. 
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<m> deal </m> in Advanced Micro Devices on Wednesday announced a deal to acquire startup SeaMicro, a maker of microservers and data center fabric technology, for $334 million. 