Intel Xeon W3565 vs Intel 2x Xeon E5520

Intel Xeon W3565 $562
Intel 2x Xeon E5520 $373
4 Cores
8 Threads
3.2GHz Clock
8 Cores
16 Threads
2.26GHz Clock
Socket
LGA 1366
Socket
LGA 1366
iGPU
No GPU
- -
iGPU
No GPU
- -
GB6S 485
12%
GB6S 365
9%
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
Bloomfield
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-
-
-
-
-
-
-
Codename
Nehalem-EP
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-
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Gainestown
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-
-
-
Market Segment
Workstation
Market Segment
Server
Release Date
11/1/2009
Release Date
3/30/2009
Foundry
Intel
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-
-
Foundry
Intel
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-
-
Node
45nm
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-
-
Node
45nm
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-
-
Die Size
263 mm²
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-
-
Die Size
263 mm²
-
-
-
Transistor Count
731 Million
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-
-
Transistor Count
731 Million
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-
-
4 Cores
-
-
-
8 Cores
-
-
-
8 Threads
-
-
-
16 Threads
-
-
-
-
3.2GHz
3.4GHz Boost
24x Multiplier
-
2.26GHz
2.46GHz Boost
17x Multiplier
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-
-
-
-
-
-
-
-
-
-
-
Overclocking
Locked
Voltage
0.8V Min
1.23V Max
Overclocking
Locked
Voltage
0.75V Min
1.35V Max
Type
QPI
Type
QPI
Clock
2400MHz
Clock
2930MHz
Data Rate
Double
Data Rate
Double
Transfer Rate
4.8GT/s
Transfer Rate
5.9GT/s
Width
16Bit
Width
16Bit
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-
-
-
Bandwidth
9.6GB/s
Bandwidth
11.72GB/s
Bi-directional
19.2GB/s
Bi-directional
23.44GB/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
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-
-
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-
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-
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-
Channels
3
Channels
3
Max Memory
24GB
Max Memory
144GB
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
130W
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-
-
TDP
80W
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-
-
Temp
-
-
Temp
-
72°C TCase
Included Cooler
Not Included
Included Cooler
Not Included
No PCIe
No PCIe
No GPU
-
-
- -
No GPU
-
-
- -
No NPU
-
No NPU
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-
-
-
-
-
-
-
-
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No Cellular
No Cellular
Change Comparison