Overclock.net banner
Cancel
Create thread New Forums

Questions about Xeon E5 V3 on X99 Mobo(5820K VS E5-1660 V3)

Jump to Latest
1 - 20 of 53 Posts
J

JustinZanyo

· Registered
Joined
·
68 Posts
Discussion starter · #1 ·
I Just purchased an ASUS X99A 3.1 mobo and 4x4G DDR4 2400 non-ECC RAM
Now I have some options for CPU
Option 1. 5820K:
6C/12T with 20M L3 cache and 28-lane, can be overclocked to 4+Ghz

Option 2. Xeon E5-1660 V3 ES L0 stepping
8C/16T with 35M L3 cache and 40-lane(base clock 2.9G, Turbo 3.2G)

The questions are
1. Can I use non-ECC memory on Xeon E5 V3?
2. Can I overclock Xeon E5 1660V3? Are they unlocked? (both multipliers and bclk oc are fine with me)
3. For this weird E5-1660 V3 which has 20-way 35M L3 Cache (Retail one has 20-way 20M L3), can this CPU really use all 35M L3? Or those extra 15M are just idle and useless.

Edit
This ES chip does not identify itself as an E5-1660V3, but I find the specifications here.
http://www.cpu-world.com/sspec/QE/QEYA.html
I have no idea what QEYA means

e5-1660.jpg 303k .jpg file
 

Attachments

#3 ·
I'm curious... why are those your two options and are they the same price? Usually there would be a 5960x option.

If they are the same price, I would take the e5-1660 v3 regardless if its unlocked or can utilize all the cache (I bet it can since it's an Engineering Sample).
 
#5 ·
Quote:
Originally Posted by BinaryDemon View Post

I'm curious... why are those your two options and are they the same price? Usually there would be a 5960x option.

If they are the same price, I would take the e5-1660 v3 regardless if its unlocked or can utilize all the cache (I bet it can since it's an Engineering Sample).
Click to expand...
Quote:
Originally Posted by iinversion View Post

The Xeon will also likely overclock better. I'd grab Xeon no doubt.
Click to expand...
He's looking at the ES on Ebay for either 480 or 498. As long as it overclocks and uses all 40 PCIE lanes... I'd take the 1660. 5820k's should be reserved for MATX or M ITX builds honestly.
 
Discussion starter · #6 ·
Quote:
Originally Posted by BinaryDemon View Post

I'm curious... why are those your two options and are they the same price? Usually there would be a 5960x option.

If they are the same price, I would take the e5-1660 v3 regardless if its unlocked or can utilize all the cache (I bet it can since it's an Engineering Sample).
Click to expand...
Yes, I can grab either at almost the same price.
 
#8 ·
Quote:
Originally Posted by JustinZanyo View Post

Are you sure that ES Xeon can also be overclocked? (I mean huge overclock, not those 105mhz bclk small increase.
Click to expand...
The 1660s should be multiplier unlocked... see this

 
Discussion starter · #10 ·
Quote:
Originally Posted by MunneY View Post

The 1660s should be multiplier unlocked... see this

Click to expand...
This is a QS version of 1660 v3
QS is a special type of ES. Usually QS are sent to the press to do test and review.

I am looking at a normal ES which does not even identify itself as an 1660 V3

E5-V3 68k .jpg file
 

Attachments

#11 ·
Quote:
Originally Posted by JustinZanyo View Post

This is a QS version of 1660 v3
QS is a special type of ES. Usually QS are sent to the press to do test and review.

I am looking at a normal ES which does not even identify itself as an 1660 V3

E5-V3 68k .jpg file
Click to expand...
Bro... I'm just using it to show you that a E5-1660 is multi unlocked...

You ask a question, I answered it.

You asked again. I showed you proof.

ES, QS, Retail, doesn't matter.
 
Discussion starter · #12 ·
Quote:
Originally Posted by MunneY View Post

Bro... I'm just using it to show you that a E5-1660 is multi unlocked...

You ask a question, I answered it.

You asked again. I showed you proof.

ES, QS, Retail, doesn't matter.
Click to expand...
Sorry for my being rude.
I just want to buy an Xeon that can be overclocked, but right now it seems to be a hit or miss. Some says that 1660v3 are locked while some can oc them.
 
#13 ·
Quote:
Originally Posted by JustinZanyo View Post

Sorry for my being rude.
I just want to buy an Xeon that can be overclocked, but right now it seems to be a hit or miss. Some says that 1660v3 are locked while some can oc them.
Click to expand...
Who is saying they can be locked? Show me?
 
#16 ·
Quote:
Originally Posted by JustinZanyo View Post

The seller told me that I could not OC them
Click to expand...
Well the good thing about ebay is the fact that if you buy it and its not what you want... then you can send it back :-D

Seriously... Just try it... if it doesn't work. I might buy it from you
 
Discussion starter · #17 ·
Quote:
Originally Posted by MunneY View Post

Well the good thing about ebay is the fact that if you buy it and its not what you want... then you can send it back :-D

Seriously... Just try it... if it doesn't work. I might buy it from you
Click to expand...
Bad news is that after I did some research. It is actually an ES of E5-2667 V3, 2 series E5 can not be OC.
The seller was trying to deceive me. Eventually he told me the truth.
frown.gif
 
1 - 20 of 53 Posts
About this Discussion
52 Replies
16 Participants
Last post:
D-EJ915
Overclock.net
posts
28M
members
562K
Since
2004
The premier forum for overclocking experts and enthusiasts. Discuss hardware optimization, custom builds, benchmarking, cooling solutions, and pushing the boundaries of computing performance. From beginner guides to extreme overclocking, join our technical community to master system tuning.
Full Forum Listing
Explore Our Forums
Intel CPUs Hardware News NVIDIA PC Gaming Water Cooling