CPUs

Intel Xeon E3-1235 vs Intel Xeon E5-1620 v3 Full Specs

4 Cores
8 Threads
3.2GHz
4 Cores
8 Threads
3.5GHz
TDP
95W
TDP
140W
Bandwidth
21.3GB/s
DDR3
Bandwidth
68.3GB/s
DDR4
iGPU
iGPU
-
··
259.2 GFLOPSFP32
··
-
Socket
Socket

4 Cores
4 Cores
8 Threads
8 Threads

Base Clock
3.2GHz
Base Clock
3.5GHz
Boost Clock
3.6GHz
Boost Clock
3.6GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
32KB
L2
256KB
L2
256KB
L3
8MB
L3
10MB

Type
DDR3
Type
DDR4
Max Memory
32GB
Max Memory
768GB
ECC
Yes
ECC
Yes
Channels
2
Channels
4
Bus Width
128-bit
Bus Width
256-bit
Speed
1333MT/s
Speed
2133MT/s
Bandwidth
21.3GB/s
Bandwidth
68.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
21.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
68.3GB/s

TDP
95W
TDP
140W
T-Case
72.6°C Max
T-Case
-

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 2.0 x16
8GB/sBandwidth
PCIe
PCIe 3.0 x40
39.4GB/sBandwidth

iGPU
iGPU
-
Shaders
96
Shaders
-
Boost Clock
1.35GHz
Boost Clock
-
··
259.2 GFLOPSFP32
··
-

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon 2011 branding
Branding
Xeon 2013 branding
Codename
Gladden
Sandy Bridge-HE-4Die
Sandy Bridge-4C-GT2Variant
Codename
Haswell-E
-
Haswell-E-LCCVariant
Market Segment
Server
Market Segment
Server
Release Date
Apr 3, 2011
Release Date
Sep 8, 2014

Foundry
Intel
Foundry
Intel
Fabrication Node
32nm
Fabrication Node
22nm
Die Size
216mm²
Die Size
354mm²
Transistor Count
1.2 Billion
Transistor Count
2.6 Billion
Transistor Density
5 MTr/mm²
Transistor Density
7 MTr/mm²