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Intel Xeon Platinum 8458P processor, silver heat-spreader with gold contacts, LGA 4677 socket form factor

Intel

Intel PK8071305073301 Xeon Platinum 8458P 44-core 2.7 GHz server processor

SKU CH-K751-3R5J9 MPN PK8071305073301

44-core Xeon server processor with 88 threads, 82.5 MB L3 cache, and DDR5-4800 memory support

  • NameXeon Platinum 8458P
  • CPU Socket TypeLGA 4677
  • Core NameSapphire Rapids
  • # of Cores44-Core
  • # of Threads88
  • Operating Frequency2.7 GHz
  • 44 cores and 88 threads handle heavy parallel workloads
  • 7 GHz base and 3.8 GHz max turbo frequency deliver strong single-thread speed
  • 5 MB L3 cache keeps large data sets close to the cores
  • Eight-channel DDR5 up to 4800 MT/s supports up to 4 TB memory
  • PCIe 5.0 with 80 lanes enables high-bandwidth I/O expansion

44-core Xeon for single-socket servers

The Intel Xeon Platinum 8458P is a 44-core, 88-thread server processor built on 10 nm Sapphire Rapids silicon. It targets single-socket platforms that need high core density and large memory capacity for virtualisation, database and high-performance computing workloads.

82.5 MB L3 cache and DDR5-4800 bandwidth

Eight memory channels support up to 4 TB of DDR5 at 4800 MT/s with one DIMM per channel or 4400 MT/s with two. The 82.5 MB shared L3 cache feeds all 44 cores, reducing latency for memory-bound tasks while the 3.8 GHz max turbo frequency handles bursty single-thread demand.

LGA 4677 socket with 80 PCIe 5.0 lanes

The processor drops into an LGA 4677 socket and exposes 80 lanes of PCI Express 5.0 for fast storage, networking or accelerator cards. A 350 W thermal design power requires substantial cooling, which is not included. Scalability is limited to one socket, so dual-socket builds are not supported.

Points forts

  • 44 cores and 88 threads handle heavy parallel workloads
  • 7 GHz base and 3.8 GHz max turbo frequency deliver strong single-thread speed
  • 5 MB L3 cache keeps large data sets close to the cores
  • Eight-channel DDR5 up to 4800 MT/s supports up to 4 TB memory
  • PCIe 5.0 with 80 lanes enables high-bandwidth I/O expansion

Caractéristiques

BrandIntel
SeriesXeon
NameXeon Platinum 8458P
ModelPK8071305073301
CPU Socket TypeLGA 4677
Core NameSapphire Rapids
# of Cores44-Core
# of Threads88
Operating Frequency2.7 GHz
Max Turbo Frequency3.8 GHz
L3 Cache82.5MB
64-Bit SupportYes
Hyper-Threading SupportYes
Manufacturing Tech10 nm
Integrated Memory Controller SpeedUp to DDR5 4800 MT/s 1DPC
Up to DDR5 4400 MT/s 2DPC
Maximum Memory Capacity4TB
Memory Channel8 Channel
Virtualization Technology SupportYes
Scalability1S Only
PCI Express Revision5.0
Max # of PCI Express Lanes80
Thermal Design Power350W
Cooling DeviceCooling device not included - Processor Only
Poids d’expédition0.45 kg
Dimensions du colis178 × 127 × 76 mm

Questions sur cet article

Can I keep using my current DDR5 4800 MT/s RDIMMs with the 8-channel controller on this Xeon Platinum 8458P?

Yes, the integrated memory controller supports up to DDR5 4800 MT/s at 1 DPC and 4400 MT/s at 2 DPC across eight channels, so existing DDR5 4800 modules will run at their rated speed.

How do I verify the 44 cores and 88 threads are active after installing the processor?

Check the OS task manager or run lscpu; you should see 44 physical cores, 88 logical processors, a base frequency of 2.7 GHz and a maximum turbo of 3.8 GHz.

Does the box contain a heatsink or do I need to buy a 350 W cooler separately?

The processor is sold without a cooling device; you must source a compatible LGA 4677 cooler rated for at least 350 W TDP.

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