Help - CPU choice for proxmox
- Thread starter punkboost
- Start date
Both are well tested. I think most homelabbers are either using NUCs for low power or V2/V3/V4 Xeons for bang for the buck. But yeah, they are quite old and EoL, so not that reliable anymore and not great for production because of possible data loss and downtime.
Old(er) server CPUs are always fine with Proxmox, so choose the fastest one you can afford. I can't say the same about the motherboard, which usually fails much earlier that the CPU. I have seen posts on this forum about issues with Dell and HP and BIOS versions and disk controllers...
In addition to that: You have to consider if you want fast single core performance, or a multiload of parallel processing. E5-2699V4 is a beast, but only with respect to cores. If you're virtualized application cannot take advantage of that, go with higher frequency. We always go for highest frequency and two processors due to the used virtualized software.
The v3 xeon uses ddr3, hence might be a lot more affordable. I don't have current prices in mind but when comparing v3/v4 back in the days one of the main differences was the used men technology.
For average workloads (e.g. no heavy number crunching) I decided for myself that v4 was not worth it as the gap was not big enough over all.
Long story short: imho you should compare whole system (TCO) not only the processor.
For average workloads (e.g. no heavy number crunching) I decided for myself that v4 was not worth it as the gap was not big enough over all.
Long story short: imho you should compare whole system (TCO) not only the processor.
When looking at german scond hand market prices on ebay, those Xeon v3 servers are still way cheaper. And v3s are using 22nm process, v4 the 14nm process Intel just get rid of recently. So with the v4 you get more cores for the same TDP.
Nope.
all FCLGA2011-3 socket CPUs use DDR4 memory, including haswell. check ark if you have doubt
they're more "affordable" cause they're older.In general, there are no "better" or "worse" cpus- they all have reason to have existed in the first place and that has to do with matching capacity/cost to use case.
They're all fully compatible with Proxmox. if you describe your workload/usecase, more useful recommendations may follow.
I could swear that the systems we have measured were v3 and ddr3 but you are right. Ark is the source of truth...all FCLGA2011-3 socket CPUs use DDR4 memory, including haswell. check ark if you have doubt
However it seems there are ddr3 capable versions.
https://www.servethehome.com/asrock-rack-releases-intel-xeon-e5-2600-v3-motherboards-ddr3/
Even more a reason to look very precisely what to purchase
it does not matter which cpu you choose, proxmox is fine with all of them
but if you won't need all of the cpu power, i would replace them with lower power versions , which could save you a LOT from your energy bill.
2630lv3 are darn cheap and even the more expensive ones should pay of quite fast...
https://www.piospartslap.de/Intel-X...MB-SmartCache-18-GHz-8-Core-FCLGA2011-3-SR209
https://www.piospartslap.de/Intel-X...B-SmartCache-18-GHz-12-Core-FCLGA2011-3-SR1Y1
https://www.piospartslap.de/Intel-X...MB-Cache-170GHz-14-Core-FCLGA2011-3-P-N-SR2N8
but if you won't need all of the cpu power, i would replace them with lower power versions , which could save you a LOT from your energy bill.
2630lv3 are darn cheap and even the more expensive ones should pay of quite fast...
https://www.piospartslap.de/Intel-X...MB-SmartCache-18-GHz-8-Core-FCLGA2011-3-SR209
https://www.piospartslap.de/Intel-X...B-SmartCache-18-GHz-12-Core-FCLGA2011-3-SR1Y1
https://www.piospartslap.de/Intel-X...MB-Cache-170GHz-14-Core-FCLGA2011-3-P-N-SR2N8