Home Comparison Opteron 1381 vs Intel Xeon E5649

Opteron 1381 vs Intel Xeon E5649

Opteron 1381
VS
Intel Xeon E5649
AMD Opteron 1381
Intel Xeon E5649
We compared two server CPUs: Opteron 1381 with 4 cores 2.5GHz and Intel Xeon E5649 with 6 cores 2.533GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Opteron 1381 's Advantages
Higher specification of memory (1333 vs 3)
Intel Xeon E5649 's Advantages
Released 1 years and 8 months late
Higher base frequency (2.533GHz vs 2.5GHz)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)
Lower TDP (80W vs 115W)

Score

Opteron 1381
VS
Intel Xeon E5649

General Parameters

Jun 2009
Release Date
Feb 2011
AMD
Manufacturer
Intel
Server
Type
Server
Suzuka
Core Architecture
Westmere-EP
AMD Socket AM3
Socket
Intel Socket 1366
On certain motherboards (Chipset feature)
Integrated Graphics
N/A
Opteron(Suzuka)
Generation
Xeon (Westmere-EP)

Package

0.758 billions
Transistor Count
1.17 billions
45 nm
Manufacturing Process
32 nm
115 W
Power Consumption
80 W
GlobalFoundries
Foundry
Intel
258 mm²
Die Size
239 mm²

CPU Performance

2.5 GHz
Performance Core Base Frequency
2.533 GHz
0
Performance Core Turbo Frequency
2.8 GHz
4
Total Core Count
6
4
Total Thread Count
12
200 MHz
Bus Frequency
133 MHz
12.5
Multiplier
19.0
128 KB per core
L1 Cache
64 K per core
512 KB per core
L2 Cache
256 K per core
6 MB shared
L3 Cache
12 MB shared
No
Unlocked Multiplier
No
1
SMP
2

Memory Parameters

DDR3-1333
Memory Types
DDR3
2
Max Memory Channels
3
Yes
ECC Memory Support
Yes

Miscellaneous

2
PCIe Version
2

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