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Hi,

 

What's the best CPU for an xpen rig (among the following two)?

 - i7 4770S 4cores/8threads. Passmark : 6836 (single thread: 2146).  (Intel HD4600)

 - i3 8100   4cores/4threads.  Passmark : 6129  (single thread: 2242). (Intel UHD630)

 

UserBenchmark.com considers the 8100 as 3% faster

 

Thank you very much in advance for your feedback.

 

Best,

-a-

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Technically more threads are better.  In reality the difference will be imperceptible.

 

However, the i3 has much newer silicon, which will benefit in 1) cooler operation and 2) better transcoding support, should you wish to do that.

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  • 4 weeks later...
On 5/11/2021 at 4:52 PM, flyride said:

Technically more threads are better.  In reality the difference will be imperceptible.

Would it make a difference if multiple clients are accessing the volume concurrently via a bond connection (4x 1GbE)?

Is this a use case where more threads would make a significant difference or not?

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Thanks :)

 

I'm also considering older Intel 3rd gen CPUs as alternatives (3470, 3770, 3770K). These don't support AVX2 (I know nothing about instructions sets).

Is this relevant/limiting in anyway in a NAS? Or are these mostly useful for gamers?

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Ivy Bridge processors are too old to run DS918+ (don't support FMA3) but AVX is irrelevant to NAS.  As long as you are happy with DS3615xs/DS3617xs (no transcoding) they are fine.

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16 hours ago, flyride said:

Ivy Bridge processors are too old to run DS918+ (don't support FMA3) but AVX is irrelevant to NAS.  As long as you are happy with DS3615xs/DS3617xs (no transcoding) they are fine.

Yes I forgot to mention that I would obviously using ds3617xs for intel 3rd gen-based Xpen rigs.

I am not totally aware of what features are different between ds3617xs and ds918+ (except for transcoding, which I have no use for)

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Posted (edited)

Maybe I should give you a better view of what I need to do and what hardware I have available. This way you might give me valuable advice:

 

I need 4 NASes:

 - 2 backup servers (will receive backups from another Synology NAS, LAN and/or WAN): Lots of disk space. Single GbE connection. Active only once a week.

 - 1 file server (will serve multiple LAN clients concurrently): Lots of disk space. Bond connection (4x GbE). Active daily.

 - 1 Wiki host / file server (will serve multiple LAN clients concurrently): 2 small SSDs in RAID1 for the wiki. a few HDDs in RAID5 for other files. Bond connection (4x GbE). Active daily. Wiki files will be accessed very frequently. Files on the HDDs will seldom be accessed.

 

Now, I have the following hardware available:

 - 1x Z68 Express-based motherboard (intel 3rd gen CPUs : several i5-3470 or 1x i7-3770 or 1x i7-3770k)

 - 1x Z77-based motherboard (intel 3rd gen CPUs : several i5-3470 or 1x i7-3770 or 1x i7-3770k)

 - 2x Z87-based motherboard (intel 4th gen CPUs : 1x i7-4770s or 2x i7-4770k or 2x i7-4790k)

 - 1x Z97-based motherboard (intel 4th gen CPUs : 1x i7-4770s or 2x i7-4770k or 2x i7-4790k)

 - 1x Z370-based motherboard (intel 8th gen CPU : 1x i3-8100)

 

CPUs in bold are 4cores/4threads only (others are 4c/8t)

 

I would like to use the lowest possible hardware for the NASes and save the better one for workstations. However, I need the wiki host NAS and the file server NAS to be as performant as possible (bottleneck being only the network, which I cannot upgrade).

 

Which hardware would you chose for each rig?

 

Thanks ;)

-a-

 

Edited by asheenlevrai
typo
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These are all so similar I am not sure it matters that much.  The likelihood of actually saturating a 4x bond with less than say 20 clients is very low.  Unless you can nail up a Gbe connection all day, it's not even worth the complexity of setting up a bonded connection.

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9 hours ago, flyride said:

These are all so similar I am not sure it matters that much. 

The likelihood of actually saturating a 4x bond with less than say 20 clients is very low.  Unless you can nail up a Gbe connection all day, it's not even worth the complexity of setting up a bonded connection.

Thanks :) that's good to hear.

The number of concurrent clients should be around 20-30.

I already have the NICs (PCIe2.0 x4, 4 ports) around and it seems to me that setting up a bonded connection in DSM is pretty straightforward, right?

 

Anyway, it good to know that I don't need to focus too much on what MB/CPU combo I will use for each of these rigs.

 

Thanks again :)

Best,

-a-

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