Intel Xeon E5462 vs Intel 2x Xeon E5620

Intel Xeon E5462 $797
Intel 2x Xeon E5620 $387
4 Cores
4 Threads
2.8GHz Clock
8 Cores
16 Threads
2.4GHz Clock
Socket
LGA 771
Socket
LGA 1366
iGPU
No GPU
- -
iGPU
No GPU
- -
GB6S 325
8%
GB6S 355
9%
GB6M 915
3%
GB6M 2,915
11%
CB23S N/A
0%
CB23S N/A
0%
CB23M N/A
0%
CB23M N/A
0%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Penryn
Architecture
Westmere
Family
Xeon
Family
Xeon
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Harpertown
-
-
-
-
-
-
-
-
Codename
Westmere-EP
-
-
-
-
-
-
-
-
Market Segment
Server
Market Segment
Server
Release Date
11/11/2007
Release Date
3/16/2010
Foundry
Intel
-
-
-
Foundry
Intel
-
-
-
Node
45nm
-
-
-
Node
32nm
-
-
-
Die Size
2x 107 mm²
-
-
-
Die Size
240 mm²
-
-
-
Transistor Count
2x 410 Million
-
-
-
Transistor Count
1.2 Billion
-
-
-
4 Cores
-
-
-
8 Cores
-
-
-
4 Threads
-
-
-
16 Threads
-
-
-
-
2.8GHz
-
7x Multiplier
-
2.4GHz
2.6GHz Boost
18x Multiplier
-
-
-
-
-
-
-
-
-
-
-
-
Overclocking
Locked
Voltage
0.85V Min
1.35V Max
Overclocking
Locked
Voltage
0.75V Min
1.35V Max
Type
FSB
Type
QPI
Clock
400MHz
Clock
2930MHz
Data Rate
Quad
Data Rate
Double
Transfer Rate
1.6GT/s
Transfer Rate
5.9GT/s
Width
64Bit
Width
16Bit
-
-
-
-
Bandwidth
12.8GB/s
Bandwidth
11.72GB/s
-
-
Bi-directional
23.44GB/s
L0 Instruction
-
-
L0 Instruction
-
-
L0 Data
-
-
L0 Data
-
-
L1 Instruction
32KB/Core
8-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
-
-
12MB Shared
16-way set associative
-
-
-
-
-
-
-
-
L2
256KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
L3
-
12MB Shared
-
16-way set associative
-
-
-
-
-
-
-
-
-
-
-
-
-
No Memory Controller
Channels
3
Max Memory
288GB
ECC
Supported
Bus Width/Channel
64Bit
Bus Width
192Bit
Clock
533MHz
Transfer Rate
1066MT/s
Bandwidth/Channel
8.5GB/s
Bandwidth
25.6GB/s
TDP
80W
-
-
-
TDP
80W
-
-
-
Temp
-
67°C TCase
Temp
-
78°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