On 2023-07-20 10:55, Ryan Petris wrote:
> The CPU's cheap because it's old and no one wants them anymore -- it's
> of the same generation as 6000 series intel processors (i.e. skylake).
> It also uses a server socket, so the only motherboards you're going to
> be able to find are server motherboards. Those are going to be
> expensive and/or have other quirks, such as requiring a vendor
> specific heatsink, or a vendor-specific power supply, or take 5
> minutes to start up, etc.
>
> You'd be better off spending money on a last-gen cpu and motherboard,
> for instance here's a combination that is relatively cheap:
>
> $174 for an i5-12400, which according to cpubenchmark.net is nearly
> 30% faster than the Xeon you linked (score of 19501 vs 15146, much
> faster single-core score as well):
> https://www.amazon.com/Intel-i5-12400-Desktop-Processor-Cache/dp/B09NMPD8V2/
>
> $139 for a compatible motherboard:
> https://www.amazon.com/GIGABYTE-B760M-DS3H-AX-Motherboard/dp/B0BSP61QZC/
>
> I also wouldn't pay so much attention to the number of "threads" you
> think you'll need; you can run many VMs with a total number of virtual
> processors that is much more than what you actually have, and as long
> as you're not trying to go whole hog on every machine at the same time
> you'll be fine, and even if you do, you'll still be better off with a
> faster processor with a few fewer threads than an older slower cpu
> with more.
---
Several months ago I did some research on what a vCPU is. I could not
find an exact answer. What I came away thinking was a vCPU is equal to
a thread. From what you are saying it sounds like a vCPU is a shared
resource, so there may be more vCPUs than actual threads? Is there a
way I can determine the number of vCPUs a CPU will provide?
---
>
> On Thu, Jul 20, 2023, at 10:26 AM, Keith Smith via PLUG-discuss wrote:
>
>> Hi,
>>
>> I was surfing the Inter Web when I happened upon a Xeon server CPU.
>> It
>>
>> is marked at $32.49 at Newegg. It has 12 cores and 24 threads and
>> has a
>>
>> good benchmark score.
>>
>>
> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+Silver+4116+%40+2.10GHz&id=3179
>>
>> https://www.newegg.com/p/274-000A-007K2?Description=Xeon
>>
>> In the future at some point I would like to build something with 20
>> plus
>>
>> or minus cores and 40 threads more or less for Proxmox. This would
>> be
>>
>> over kills because I only need 1 or 2 VMs active at one time...
>> maybe 3
>>
>> in an extreme situation.
>>
>> This 12 core/24 thread CPU with 64Gb of Ram and a 1Tb SSD would
>> really
>>
>> be more resources than I would ever need. Off the top of my head
>> this
>>
>> means I might be able to build a decent Proxmox server for $500 -
>> $600.
>>
>> I do not need fancy video except for one VM that might be running
>> Win 10
>>
>> or 11... I assume a server grade CPU would handle Win 10 and 11?
>>
>> Am I on the right track?
>>
>> Thank You For Your Feedback!!
>>
>> Keith
>>
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