
Are the following mentions coreferent?:
<m> chip market </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> market </m> in The question for many is where that leaves Nvidia Corp. ( nasdaq : NVDA - news - people ), now the sole independent graphics chip maker addressing each of the computing, mobile communications and display markets. 