Historically, the bottleneck in all CPU's -- has been the speed at which data can be transferred from/to main memory. A large on-board CPU cache -- solves that

Historically, the bottleneck in all CPU's -- has been the speed at which data can be transferred from/to main memory. A large on-board CPU cache -- solves that for smaller programs whose code and data can entirely fit into that cache. But for larger programs whose code and data do not fit entirely into a CPU's cache -- the bottleneck is "how fast does it read/write from main memory?". Here, for the Qualcomm Snapdragon X Elite -- we are given a figure for that, of 136GB/sec. Is it really that fast? Well, future benchmarking to confirm that number will have to take place. But if it really is that fast -- then that would be pretty respectable for a 2023 consumer CPU...