CPUs

Intel Xeon Gold 6138 vs AMD EPYC 9255 Full Specs

20 Cores
40 Threads
2GHz
24 Cores
48 Threads
3.25GHz
TDP
125W
TDP
200W
Bandwidth
128GB/s
DDR4
Bandwidth
576GB/s
DDR5
Socket
Socket

20 Cores
24 Cores
40 Threads
48 Threads

Base Clock
2GHz
Base Clock
3.25GHz
Boost Clock
3.7GHz
Boost Clock
4.3GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
48KB
L2
1MB
L2
1MB
L3
27.5MB
L3
128MB

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
125W
TDP
200W
cTDP-down
-
cTDP-down
200W
cTDP-up
-
cTDP-up
240W
T-Case
86°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 Gold 2017 branding
Branding
EPYC 2017 branding
Codename
Skylake-SP
-
Skylake-SP-XCCVariant
Codename
Turin
EldoraDie
Turin 4CCDVariant
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
N4X
N6IO
Die Size
698mm²
-
Die Size
282mm²
388mm²IO
Transistor Count
11.9 Billion
-
Transistor Count
33.3 Billion
11 BillionIO
Transistor Density
17 MTr/mm²
-
Transistor Density
118 MTr/mm²
28 MTr/mm²IO