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Some Intel CPUs have a scalability feature such as i7-4790:

Scalability: 1S Only

There is no explanation about what this is. Could somebody explain it to me?

Cristian Ciupitu
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MOON
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  • See https://serverfault.com/questions/787313/intel-xeon-processors-difference-between-2s-4s-and-s2s-s4s-scalability – Alexis Wilke Aug 17 '19 at 00:51

1 Answers1

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I suspect the Scalability: "1S" means it only supports single socket setups. So you cannot create a system with two sockets and fill only one until you need your system to scale up to handle more load and then to accomplish that, simply add a second processor. You can do that with Xeon processors though, for example E5-2440 v2 has "2S Only".

Cristian Ciupitu
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TheUser1024
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    Does '2S only' mean you can only use the processors in sets of (0 or two). not 1? – Gizmo Apr 14 '16 at 18:18
  • @Gizmo Yes, although 0 will probably not work very well... :-) However, the postfix "S" means "Socket". "S2S" would mean scalable 1 or 2 CPUs on a motherboard. [See here for details](https://serverfault.com/questions/787313/intel-xeon-processors-difference-between-2s-4s-and-s2s-s4s-scalability). – Alexis Wilke Aug 17 '19 at 00:53