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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

  • Product nameXeon Platinum 8458P
  • CPU cores44-Core
  • CPU socketLGA 4677
  • Maximum turbo clock3.8 GHz
  • TDP rating350 W
  • Processor codenameSapphire Rapids
  • 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.

How it compares

Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.

Price $6,659.99
Pricier than about 90% of the 621 comparable items (median $1,561.99).
CPU cores 44-Core
Higher than about 75% of the 386 comparable items (median 24).
Maximum turbo clock 3.8 GHz
Lower than about 55% of the 327 comparable items (median 3.9 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineXeon
Model namePK8071305073301
Product nameXeon Platinum 8458P
Performance
Working frequency2.7 GHz
Processor
CPU cores44-Core
CPU socketLGA 4677
Maximum turbo clock3.8 GHz
TDP rating350 W
Processor codenameSapphire Rapids
CPU threads88
Level 3 cache82.5 MB
64-bit capableYes
Hyper-ThreadingYes
Process node10 nm
Virtualization supportYes
CPU socket scalability1S Only
Maximum PCIe lanes80
Memory
Supported memory speedUp to DDR5 4800 MT/s 1DPC
Up to DDR5 4400 MT/s 2DPC
Max supported memory4 TB
Channel configuration8 Channel
Ports & slots
PCIe generation5.0
Size & build
Shipping weight0.45 kg
Package size178 × 127 × 76 mm
In the box
Included coolerNot included - Processor Only

Questions about this item

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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