Intel 2x Xeon E5520 vs Intel Xeon W3520

Intel 2x Xeon E5520 $373
Intel Xeon W3520 $284
8 Cores
16 Threads
2.26GHz Clock
4 Cores
8 Threads
2.66GHz Clock
Socket
LGA 1366
Socket
LGA 1366
iGPU
No GPU
- -
iGPU
No GPU
- -
GB6S 365
9%
GB6S 410
10%
GB6M 2,285
9%
CB23S N/A
0%
CB23S N/A
0%
CB23M N/A
0%
CB23M N/A
0%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Nehalem
Architecture
Nehalem
Family
Xeon
Family
Xeon
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Nehalem-EP
-
-
-
Gainestown
-
-
-
-
Codename
Bloomfield
-
-
-
-
-
-
-
-
Market Segment
Server
Market Segment
Workstation
Release Date
3/30/2009
Release Date
3/30/2009
Foundry
Intel
-
-
-
Foundry
Intel
-
-
-
Node
45nm
-
-
-
Node
45nm
-
-
-
Die Size
263 mm²
-
-
-
Die Size
263 mm²
-
-
-
Transistor Count
731 Million
-
-
-
Transistor Count
731 Million
-
-
-
8 Cores
-
-
-
4 Cores
-
-
-
16 Threads
-
-
-
8 Threads
-
-
-
-
2.26GHz
2.46GHz Boost
17x Multiplier
-
2.66GHz
2.86GHz Boost
20x Multiplier
-
-
-
-
-
-
-
-
-
-
-
-
Overclocking
Locked
Voltage
0.75V Min
1.35V Max
Overclocking
Locked
Voltage
0.8V Min
1.38V Max
Type
QPI
Type
QPI
Clock
2930MHz
Clock
2400MHz
Data Rate
Double
Data Rate
Double
Transfer Rate
5.9GT/s
Transfer Rate
4.8GT/s
Width
16Bit
Width
16Bit
-
-
-
-
Bandwidth
11.72GB/s
Bandwidth
9.6GB/s
Bi-directional
23.44GB/s
Bi-directional
19.2GB/s
L0 Instruction
-
-
L0 Instruction
-
-
L0 Data
-
-
L0 Data
-
-
L1 Instruction
32KB/Core
4-way set associative
-
-
-
-
L1 Instruction
32KB/Core
4-way set associative
-
-
-
-
L1 Data
32KB/Core
8-way set associative
-
-
-
-
L1 Data
32KB/Core
8-way set associative
-
-
-
-
L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
L3
-
8MB Shared
-
16-way set associative
-
-
-
-
-
L3
-
8MB Shared
-
16-way set associative
-
-
-
-
-
-
-
-
-
-
-
-
-
Channels
3
Channels
3
Max Memory
144GB
Max Memory
24GB
ECC
Supported
ECC
Supported
Bus Width/Channel
64Bit
Bus Width
192Bit
Bus Width/Channel
64Bit
Bus Width
192Bit
Clock
533MHz
Transfer Rate
1066MT/s
Clock
533MHz
Transfer Rate
1066MT/s
Bandwidth/Channel
8.5GB/s
Bandwidth
25.6GB/s
Bandwidth/Channel
8.5GB/s
Bandwidth
25.6GB/s
TDP
80W
-
-
-
TDP
130W
-
-
-
Temp
-
72°C TCase
Temp
-
68°C TCase
Included Cooler
Not Included
Included Cooler
Not Included
No PCIe
No PCIe
No GPU
-
-
- -
No GPU
-
-
- -
No NPU
-
No NPU
-
-
-
-
-
-
-
-
-
-
-
No Cellular
No Cellular
Change Comparison