Advanced Micro Devices AMD-Q shares tumbled 8 per cent on Wednesday after the company’s AI chip revenue failed to meet analysts’ high expectations, underscoring its struggle to grab market share from well-entrenched market leader Nvidia NVDA-Q. The company’s fourth-quarter data center revenue, which reflects demand for its AI processors, jumped 69 per cent to $3.9-billion, missing the consensus estimate of $4.15-billion. “AMD may still be taking market share from Intel in the central processing unit (CPU) side of things, but it remains a long way behind Nvidia and is struggling to catch up when it comes to graphics processing units...