# How much is Discourse affected by a faster CPU?

**URL:** https://meta.discourse.org/t/how-much-is-discourse-affected-by-a-faster-cpu/58407
**Category:** Self-hosting
**Tags:** hosting
**Created:** [5. März 2017 um 11:11 UTC](https://meta.discourse.org/t/how-much-is-discourse-affected-by-a-faster-cpu/58407 "2017-03-05T11:11:37Z")
**Posts on this page:** 1
**Showing post:** 33

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### Author: ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [18. Januar 2019 um 04:33 UTC](https://meta.discourse.org/t/how-much-is-discourse-affected-by-a-faster-cpu/58407/33 "2019-01-18T04:33:46Z")

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Checking CPU scaling of the new box with `i7z` and `stress`. Reminder this is [the i7-8750H](https://ark.intel.com/products/134906/Intel-Core-i7-8750H-Processor-9M-Cache-up-to-4-10-GHz-) with 6 cores, 12 threads, 45W TDP.

Here’s one task hogging CPU with `stress --cpu 1`, we definitely see 4100 Mhz as promised:

 ![image](https://global.discourse-cdn.com/meta/original/3X/8/2/82a01fee23d895e59d63817bd5f5fe04a877ab09.png)

Starting with ~10w power consumption with `i7z` running but nothing else. Let’s exercise us some cores!

| | typical clock | watts |
| --- | --- | --- |
| `stress --cpu 1` | 4.1 Ghz | 30w |
| `stress --cpu 2` | 4.1 Ghz | 42w |
| `stress --cpu 3` | 4.0 Ghz | 53w |
| `stress --cpu 4` | 3.9 Ghz | 65w\* |
| `stress --cpu 5` | 3.7 Ghz | 65w\* |
| `stress --cpu 6` | 3.5 Ghz | 65w\* |
| `stress --cpu 12` | 3.3 Ghz | 65w\* |

\* It is likely more, you can really see the CPU speed limiters kick in because the watt meter will peak at 75w and then quickly dials it back down to _exactly_ 65w.

Running current-ish versions of `mprime` jacks this up to 75w though, and overall clock scales down to 3.1 Ghz .. those AVX2 extensions are 🔥

Power consumption seems to be about 8w totally idle at the Ubuntu login prompt. Not bad at all!

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