Intel Xeon E5 2666 v3 vs Opteron 6281
We compared two server CPUs: Intel Xeon E5 2666 v3 with 10 cores 2.9GHz and Opteron 6281 with 16 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5 2666 v3 's Advantages
Released 2 years and 6 months late
Higher specification of memory (2133 vs 1600)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2.5GHz)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Opteron 6281 's Advantages
Lower TDP (130W vs 135W)
Score
General Parameters
Nov 2014
Release Date
May 2012
Intel
Manufacturer
AMD
Server
Type
Server
Haswell-EP
Core Architecture
Interlagos
Intel Socket 2011-3
Socket
AMD Socket G34
N/A
Integrated Graphics
N/A
Xeon E5 (Haswell-EP)
Generation
Opteron (Interlagos)
Package
2.6 billions
Transistor Count
2.4 billions
22 nm
Manufacturing Process
32 nm
135 W
Power Consumption
130 W
Intel
Foundry
GlobalFoundries
356 mm²
Die Size
2x315 mm²
CPU Performance
2.9 GHz
Performance Core Base Frequency
2.5 GHz
3.5 GHz
Performance Core Turbo Frequency
3.2 GHz
10
Total Core Count
16
20
Total Thread Count
16
100 MHz
Bus Frequency
200 MHz
29.0
Multiplier
12.5
64 K per core
L1 Cache
768 KB
256 K per core
L2 Cache
2 MB per module
25 MB shared
L3 Cache
8 MB per die
No
Unlocked Multiplier
No
2
SMP
4
Memory Parameters
DDR4-2133,DDR3-2133
Memory Types
DDR3-1600
4
Max Memory Channels
4
Yes
ECC Memory Support
Yes
Miscellaneous
3
PCIe Version
2
40
PCIe Lanes
-
