Server CPU

[techlists at phpcoderusa.com]

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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