Microsoft buys a lot of GPUs from both Nvidia and AMD. But moving forward, Redmond's leaders want to shift the majority of its AI workloads from GPUs to its own homegrown accelerators. The software titan is rather late to the custom silicon party. While Amazon and Google have been building custom CPUs and AI accelerators for years, Microsoft only revealed its Maia AI accelerators in late 2023. Driving the transition is a focus on performance per dollar, which for a hyperscale cloud provider is a...