Intel Xeon E5-2658 v3 

Released July, 2014
  • 2.2 GHz
  • Duodeca core

These interconnects allow for faster core communication with a more direct link using dual rings with bi-directional interconnects.
by William-Harmon (Sep, 2014)
You can also see how well processors have scale up with added cores to the die.
by William-Harmon (Sep, 2014)

Features Key features of the Intel Xeon E5-2658 v3

clock speed

Xeon E5-2658 v3
2.2 GHz
Core i7 5820K
3.3 GHz

turbo clock speed

Xeon E5-2658 v3
2.9 GHz
Core i7 6700K
4.2 GHz
Core i7 5820K
3.6 GHz

L3 cache

Xeon E5-2658 v3
30 MB

overclocked clock speed (air)

Xeon E5-2658 v3
2.2 GHz
Core i7 6700K
4.64 GHz
Core i7 5820K
4.33 GHz

overclocked clock speed (water)

Xeon E5-2658 v3
2.2 GHz
Core i7 6700K
4.77 GHz
Core i7 5820K
4.53 GHz


Xeon E5-2658 v3

In The News From around the web


Eighteen-core Xeon E7 v3 Based on Haswell-EX in Q2'15

by Scott Michaud |
If that is not enough cores, then you can pick up an eight-socket motherboard and load it up with multiple of these.
While Ivy Bridge-EX was available with up to 15 physical cores per processor, double that with HyperThreading, Haswell-EX is increasing that to 18, or 36 simultaneous threads with HyperThreading.
This chart shows how an aggressor VM can start to degrade performance until cache monitoring detects this, partitions the cache, and restores packet performance.
The core will slow during the execution of the AVX instruction in order to maintain TDP limits, which may cause the frequency to drop.
The previous Ivy Bridge-EX flagship had 4.31 Billion transistors configured on a 541mm2 so its easy to tell that the Haswell-EP takes die size and transistor count to a new level.
The Xeon E5-2600 V3 lineup is going to be aimed at the HPC server and workstation market featuring 23 E5-2600 V3 SKUs including the flagship Xeon E5-2699 V3 which boasts 18 Cores, 36 threads, 45 MB of L3 cache and a high price of $4115 US.
Just like Ivy Bridge-EP before it, we will get multiple die variants of Xeon E5 2600 v3 family which will only be detailed once they launch next year.
The new Haswell architecture would further leverage the performance over the existing Ivy Bridge architecture based Xeon family delivering more performance with improved efficiency which is the key role of effectiveness in the enterprise and workstation scape.

Specifications Full list of technical specs


Clock speed 2.2 GHz
Turbo clock speed 2.9 GHz
Cores Duodeca core


Has a NX bit Yes
Supports trusted computing Yes
Has virtualization support Yes
Instruction set extensions
  1. AES
  2. AVX
  3. AVX 2.0
Supports dynamic frequency scaling Yes

power consumption

TDP 105W
Annual home energy cost 25.29 $/year
Annual commercial energy cost 91.98 $/year
Typical power consumption 85.31W


Architecture QPI
Data rate 76,800 MB/s
Transfer rate 9,600 MT/s
Clock speed 4,800 MHz


Architecture x86-64
Threads 24 threads
L3 cache 30 MB
L3 cache per core 2.5 MB/core
Manufacture process 22 nm
Max CPUs 2


Overclocked clock speed 2.2 GHz
Overclocked clock speed (Water) 2.2 GHz
Overclocked clock speed (Air) 2.2 GHz

integrated graphics

GPU None

memory controller

Memory controller Built-in
Memory type DDR
Channels Quad Channel
Supports ECC Yes
Maximum bandwidth 6,400 MB/s
Maximum memory size 786,432 MB
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