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I think it's far more likely that it's driven by the fact that most CPUs are sold in laptops; and P/E core split lets them have better battery life. Those desi
by klausa 2y ago
I think it's far more likely that it's driven by the fact that most CPUs are sold in laptops; and P/E core split lets them have better battery life.
Those design decisions then bubble up to server space, not the other way around.
- paol 2y agoBut the decision to make server chips entirely of E cores must come from some customers demanding core count density above all else. I'm suggesting where that demand comes from.
- chipdart 2y ago> (...) must come from some customers demanding core count density above all else. I don't think you realize that that's not a niche, whimsical requirement that you can only explain with conspiracy theories. For decades, all hosting providers have been paying a premium to have more computational power with a smaller size and power footprint. This is not a AWS whim. All cloud providers want this, and have been paying a premium for this. If anything, AWS had the budget to roll out their own CPUs. How long ago did AMD launched its Bulldozer line?
- greenicon 2y agoModern CPUs are mostly limited by their energy budget/heat and smaller cores are more efficient. Also, if you have a workload scaling to, say, 8 cores chances are good that it also scales to 20+, allowing the usage of many small cores. Hence, having a few fast and then several smaller, more efficient cores should be also useful for workstations and servers.