CPUs

Intel Xeon E5-1607 v3 vs Intel Xeon E5-1681 v3 Full Specs

4 Cores
8 Threads
3.1GHz
10 Cores
20 Threads
2.9GHz
TDP
140W
TDP
135W
Bandwidth
59.7GB/s
DDR3
Bandwidth
68.3GB/s
DDR4
iGPU
0
iGPU
0
Socket
Socket

Xeon E5-1607 v3Xeon E5-1607 v31,045
x1
Xeon E5-1681 v3Xeon E5-1681 v31,250
x1.20

4 Cores
10 Cores
8 Threads
20 Threads

Base Clock
3.1GHz
Base Clock
2.9GHz
Boost Clock
3.1GHz
Boost Clock
3.5GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
32KB
L2
256KB
L2
256KB
L3
10MB
L3
25MB

Type
DDR3
Type
DDR4
Max Memory
768GB
Max Memory
768GB
ECC
Yes
ECC
Yes
Channels
4
Channels
4
Bus Width
256-bit
Bus Width
256-bit
Speed
1866MT/s
Speed
2133MT/s
Bandwidth
59.7GB/s
Bandwidth
68.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
59.7GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
68.3GB/s

TDP
140W
TDP
135W

Bus Type
DMI
Bus Type
DMI
Bus Config
4 lanes
Bus Config
4 lanes
Bus Speed
5GT/s
Bus Speed
5GT/s
Bus Bandwidth
2.5GB/s
Bus Bandwidth
2.5GB/s

PCIe
PCIe 3.0 x40
39.4GB/sBandwidth
PCIe
PCIe 3.0 x40
39.4GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon 2013 branding
Branding
Xeon 2013 branding
Codename
Haswell-E
Haswell-E-LCCVariant
Codename
Haswell-EN
Haswell-E-MCCVariant
Market Segment
Server
Market Segment
Server
Release Date
Sep 8, 2014
Release Date
Sep 8, 2014

Foundry
Intel
Foundry
Intel
Fabrication Node
22nm
Fabrication Node
22nm
Die Size
354mm²
Die Size
492mm²
Transistor Count
2.6 Billion
Transistor Count
3.8 Billion
Transistor Density
7 MTr/mm²
Transistor Density
8 MTr/mm²

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