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Intel Xeon Max 9480 server processor in LGA 4677 socket package

Intel

Intel Xeon Max 9480 PK8071305223000 56-core 1.9 GHz server processor

SKU CH-PC4Q-K45JZ MPN PK8071305223000

56-core server processor with 112 threads, 112.5 MB L3 cache, 3.5 GHz max turbo, DDR5-4800 support up to 4 TB, 80 PCIe 5.0 lanes, 350 W TDP, LGA 4677 socket

  • NameXeon Max 9480
  • CPU Socket TypeLGA 4677
  • Core NameSapphire Rapids
  • # of Cores56-Core
  • # of Threads112
  • Operating Frequency1.9 GHz
  • 56 cores and 112 threads handle heavy parallel workloads
  • 9 GHz base with 3.5 GHz max turbo frequency adapts to demand
  • 5 MB L3 cache keeps large datasets close to the cores
  • Eight-channel DDR5 controller supports up to 4 TB of memory
  • PCIe 5.0 with 80 lanes provides high-speed I/O bandwidth

56-core Xeon Max 9480 for dense compute

The Intel Xeon Max 9480 delivers 56 cores and 112 threads at a 1.9 GHz base frequency with a 3.5 GHz max turbo. It fits the LGA 4677 socket and supports up to 4 TB of DDR5 memory across eight channels. The 10 nm Sapphire Rapids architecture includes Intel AMX, AVX-512 and AVX2 instruction sets for heavy parallel workloads.

Upgrade from lower-core Xeon

Moving to this single-socket 56-core part replaces older multi-socket deployments when thread density and memory bandwidth per socket are the bottleneck. The jump is worth it when software licensing scales per socket and the 80 PCIe 5.0 lanes can consolidate accelerator cards. It is not for buyers who need more than two-socket scaling or who require a lower thermal envelope.

Sustained load behaviour with 350 W TDP

Under continuous multi-threaded work the processor runs at its 350 W thermal design power, so cooling must dissipate that heat without throttling. The 112.5 MB L3 cache helps keep cores fed during long AVX-512 or AMX runs, while DDR5 4800 MT/s single-DPC and 4400 MT/s dual-DPC memory rates sustain bandwidth. No cooling device is included.

Highlights

  • 56 cores and 112 threads handle heavy parallel workloads
  • 9 GHz base with 3.5 GHz max turbo frequency adapts to demand
  • 5 MB L3 cache keeps large datasets close to the cores
  • Eight-channel DDR5 controller supports up to 4 TB of memory
  • PCIe 5.0 with 80 lanes provides high-speed I/O bandwidth

Specifications

BrandIntel
SeriesIntel Xeon Max
NameXeon Max 9480
ModelPK8071305223000
CPU Socket TypeLGA 4677
Core NameSapphire Rapids
# of Cores56-Core
# of Threads112
Operating Frequency1.9 GHz
Max Turbo Frequency3.5 GHz
L3 Cache112.5MB
64-Bit 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
Scalability2S
PCI Express Revision5.0
Max # of PCI Express Lanes80
Multimedia InstructionIntel AMX, Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512
Thermal Design Power350W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.23 kg
Package size127 × 102 × 13 mm

Questions about this item

What socket and cooling clearance does the LGA 4677 package require?

The processor fits an LGA 4677 socket and has a 350 W thermal design; the board must provide a matching socket and a cooler rated for at least 350 W with the correct mounting pattern.

Which installation step is most often missed when seating this CPU?

Installers frequently forget to load the DDR5 memory into all eight channels before first boot; the integrated controller needs a full 8-channel population to initialise correctly.

What component will need replacement first under continuous 350 W load?

The thermal interface material between the heat spreader and the cooler typically degrades before the silicon, so plan to re-paste every 12 to 18 months in 24/7 operation.

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