Intel Xeon Platinum 8156

Xeon Platinum 8156

AMD EPYC 9645

EPYC 9645

Intel Xeon Platinum 8156 vs AMD EPYC 9645 Full Specs

4 Cores
8 Threads
3.6GHz
96 Cores
192 Threads
2.3GHz
TDP
105W
TDP
320W
Bandwidth
128GB/s
DDR4
Bandwidth
576GB/s
DDR5
Socket
Socket

Xeon Platinum 8156Xeon Platinum 8156
x1
EPYC 9645EPYC 9645-
-

4 Cores
96 Cores
8 Threads
192 Threads

Base Clock
3.6GHz
Base Clock
2.3GHz
Boost Clock
3.7GHz
Boost Clock
3.7GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
48KB
L2
1MB
L2
1MB
L3
16.5MB
L3
256MB

Type
DDR4
Type
DDR5
Max Memory
768GB
Max Memory
6.14TB
ECC
Yes
ECC
Yes
Channels
6
Channels
12
Bus Width
384-bit
Bus Width
768-bit
Speed
2666MT/s
Speed
6000MT/s
Bandwidth
128GB/s
Bandwidth
576GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
128GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
576GB/s

TDP
105W
TDP
320W
cTDP-down
-
cTDP-down
320W
cTDP-up
-
cTDP-up
400W
T-Case
71°C Max
T-Case
-
Included Cooler
0
Included Cooler
0

Bus Type
UPI
Bus Type
PCIe
Bus Config
16-bit
Bus Config
8 lanes
Bus Speed
10.4GT/s
Bus Speed
32GT/s
Bus Bandwidth
20.8GB/s
Bus Bandwidth
32GB/s

PCIe
PCIe 3.0 x48
47.3GB/sBandwidth
PCIe
PCIe 5.0 x128
504.1GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon Platinum 2017 branding
Branding
EPYC 2017 branding
Codename
Skylake-SP
Skylake-SP-HCCVariant
Codename
Turin Dense
Turin Dense 8CCDVariant
Market Segment
Server
Market Segment
Server
Release Date
Jul 11, 2017
Release Date
Oct 10, 2024

Foundry
Intel
Foundry
TSMC
Other Foundries
-
Other Foundries
TSMCIO
Fabrication Node
14nm
-
Fabrication Node
N3E
N6IO
Die Size
484mm²
-
Die Size
-
388mm²IO
Transistor Count
8.3B
-
Transistor Count
-
11BIO
Transistor Density
17 MTr/mm²
-
Transistor Density
-
28 MTr/mm²IO