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Zen 4 is faster due to a greater IPC * clock frequency product. In IPC, the Apple CPUs continue to be much better than the Intel and AMD CPUs, which is the rea
by adrian_b 3y ago
Zen 4 is faster due to a greater IPC * clock frequency product.
In IPC, the Apple CPUs continue to be much better than the Intel and AMD CPUs, which is the reason that while the latter have greater absolute performance, the former have greater energy efficiency.
- zekica 3y agoMostly true, but IPC is not the only thing influencing power consumption - process node also plays a significant part, so Apple will be ahead as long as they use the newest nodes at TSMC. Apple's IPC mostly comes from their 8-wide instruction decoder that isn't possible in x86_64 because of variable instruction lengths.