CPUs

Intel Xeon E5-4648 v3 vs AMD EPYC 3351 Full Specs

12 Cores
24 Threads
1.7GHz
12 Cores
24 Threads
1.9GHz
TDP
105W
TDP
80W
Bandwidth
59.7GB/s
DDR4
Bandwidth
85.3GB/s
DDR4
Socket
Socket

12 Cores
12 Cores
24 Threads
24 Threads

Base Clock
1.7GHz
Base Clock
1.9GHz
Boost Clock
2.2GHz
Boost Clock
3GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
64KB
L1d
32KB
L1d
32KB
L2
256KB
L2
512KB
L3
30MB
L3
32MB

Type
DDR4
Type
DDR4
Max Memory
768GB
Max Memory
64GB
ECC
Yes
ECC
Yes
Channels
4
Channels
4
Bus Width
256-bit
Bus Width
256-bit
Speed
1866MT/s
Speed
2666MT/s
Bandwidth
59.7GB/s
Bandwidth
85.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
59.7GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
85.3GB/s

TDP
105W
TDP
80W
cTDP-down
-
cTDP-down
60W
Max Operating Temp
-
Max Operating Temp
105°C Max

Bus Type
QPI
Bus Type
PCIe
Bus Config
16-bit
Bus Config
4 lanes
Bus Speed
8GT/s
Bus Speed
8GT/s
Bus Bandwidth
16GB/s
Bus Bandwidth
4GB/s

PCIe
PCIe 3.0 x40
39.4GB/sBandwidth
PCIe
PCIe 3.0 x64
63GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon 2015 branding
Branding
EPYC 2017 branding
Codename
Haswell-EN
-
Haswell-E-MCCVariant
Codename
Snowy Owl
ZeppelinDie
Snowy Owl 16CVariant
Market Segment
Embedded
Market Segment
Embedded
Release Date
Jun 1, 2015
Release Date
Feb 1, 2018

Foundry
Intel
Foundry
GlobalFoundries
Fabrication Node
22nm
Fabrication Node
14LP
Die Size
492mm²
Die Size
426mm²
Transistor Count
3.8 Billion
Transistor Count
9.6 Billion
Transistor Density
8 MTr/mm²
Transistor Density
23 MTr/mm²