AMD EPYC 9745

Processor

CPU cores: 128
CPU threads: 256
Maximum boost clock: 3.7 GHz
Thermal design power: 400 W

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Processing & platform

CPU cores: 128
CPU threads: 256
Base clock: 2.4 GHz
Maximum boost clock: 3.7 GHz
L3 cache: 256 MB
Socket / package: SP5

Cache hierarchy

L1 / per core
Level
L1
Scope
per core
Size
0.078125 MB
L2 / per core
Level
L2
Scope
per core
Size
1 MB
L3 / total
Level
L3
Scope
total
Size
256 MB

Compatible sockets

Memory & storage

Memory channels: 12

Supported memory

DDR5-6400
Technology
DDR5
Transfer rate
6,400 MT/s

CPU memory support

DDR5
Variant / details
Up to 6400 MT/s
Technology
DDR5
Transfer rate
6,400 MT/s
Per-socket memory bandwidth
Variant / details
614 GB/s

Power specifications

Thermal design power: 400 W

CPU power specifications

Configurable TDP 320–400 W
Maximum rating
400 W
Minimum rating
320 W
Power specification
Configurable TDP
Variant / details
320-400W

System configuration

Detailed specifications

Specifications · 11 fields

Maximum turbo frequency

3.7^* GHz

Scope and conditions

native_context

Clock scope: Maximum turbo declaration; not measured or sustained all-core frequency^*

Codename

Turin^*

Processor model

EPYC 9745^*

Full processor designation

AMD EPYC 9745 128-Core Processor^*

Processor family

AMD EPYC^*

Launch year

precision: year^*
text: 2024^*

Declared memory capacity

6^* TB

Scope and conditions

native_context

Capacity unit base: Not independently established^*

CPU cores

128^*

L3 cache

256^* MB

Scope and conditions

native_context

Capacity unit base: Not independently established^*

Thermal design power declaration

400^* W

CPU threads

256^*

* Provisional data