AMD EPYC 9655 96 Cores 192 Threads 400 W TDP 2.6 GHz Frequency 4.5 GHz Boost Turin Codename Socket SP5 Original price was: $12,999.00.Current price is: $11,852.00.
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AMD EPYC 9575F 64 Cores 128 Threads 400 W TDP 3.3 GHz Frequency 5 GHz Boost Turin Codename Socket SP5 Original price was: $12,999.00.Current price is: $11,791.00.

AMD EPYC 9645 96 Cores 192 Threads 320 W TDP 2.3 GHz Frequency 3.7 GHz Boost Turin Codename Socket SP5

AMD EPYC 9645 96 Cores 192 Threads 320 W TDP 2.3 GHz Frequency 3.7 GHz Boost Turin Codename Socket SP5

Original price was: $11,999.00.Current price is: $11,048.00.

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Features & Compatibility

The AMD EPYC 9645 is a server/workstation processor with 96 cores, launched in October 2024, at an MSRP of $11048. It is part of the EPYC lineup, using the Zen 5c (Turin) architecture with Socket SP5. Thanks to AMD Simultaneous Multithreading (SMT) the core-count is effectively doubled, to 192 threads. To further increase overall system performance, up to two EPYC 9645 CPUs can work together in a multi-processor (SMP) configuration. EPYC 9645 has 256 MB of L3 cache and operates at 2.3 GHz by default, but can boost up to 3.7 GHz, depending on the workload. AMD is making the EPYC 9645 on a 3 nm production node, the transistor count is unknown. The silicon die of the chip is not fabricated at AMD, but at the foundry of TSMC. The multiplier is locked on EPYC 9645, which limits its overclocking potential.
With a TDP of 320 W, the EPYC 9645 is extremely power hungry, which means you need top-notch cooling. AMD’s processor supports DDR5 memory with a twelve-channel interface. The highest officially supported memory speed is 6000 MT/s, but with overclocking (and the right memory modules) you can go even higher. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption. For communication with other components in the machine, EPYC 9645 uses a PCI-Express Gen 5 connection. This processor lacks integrated graphics, you might need a graphics card.
Hardware virtualization is available on the EPYC 9645, which greatly improves virtual machine performance. Programs using Advanced Vector Extensions (AVX) can run on this processor, boosting performance for calculation-heavy applications. Besides AVX, AMD has added support for the newer AVX2 and AVX-512 instructions, too.

Physical

Socket: AMD Socket SP5
Foundry: TSMC
Process Size: 3 nm
Package: FC-LGA6096
I/O Process Size: 6 nm

Processor

Market: Server/Workstation
Production Status: Active
Release Date: Oct 10th, 2024
Launch Price: $11048
Part#: 100-000001461

Performance

Frequency: 2.3 GHz
Turbo Clock: up to 3.7 GHz
Base Clock: 100 MHz
Multiplier: 23.0x
Multiplier Unlocked: No
TDP: 320 W
Configurable TDP: 320-400 W

Architecture

Codename: Turin
Generation: EPYC
(Zen 5c (Turin))
Memory Support: DDR5
Rated Speed: 6000 MT/s
2DPC Rated Speed: 4400 MT/s
Memory Bus: Twelve-channel
ECC Memory: Yes
PCI-Express: Gen 5, 128 Lanes
(CPU only)
CXL: Gen 2.0

Core Config

# of Cores: 96
# of Threads: 192
SMP # CPUs: 2
Integrated Graphics: N/A

Cache

Cache L1: 80 KB (per core)
Cache L2: 1 MB (per core)
Cache L3: 256 MB (shared)

Features

  • MMX
  • SSE
  • SSE2
  • SSE3
  • SSSE3
  • SSE4A
  • SSE4.1
  • SSE4.2
  • AES
  • AVX
  • AVX2
  • AVX-512
  • AVX-VNNI
  • VNNI/VEX
  • BMI1
  • BMI2
  • BFloat16
  • SHA
  • F16C
  • FMA3
  • AMD64
  • EVP
  • AMD-V
  • SMAP
  • SMEP
  • X2AVIC
  • AIBRS
  • SEV-SNP
  • 5-level NPT
  • SMT
  • Precision Boost 2

Notes

CXL 2.0 supports Type 3 devices which can provide significant increases to system attached DRAM capacity. SEV-SNP security features extend to Type 3 devices.

AMD’s “Turin” CPUs can be configured for DDR5 6400 MT/s with 1 DIMM per channel (1DPC) in specific scenarios, but 6000 MT/s is the official supported rating for the SP5 platform with firmware updates provided.

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