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Rectangular green PCB with gold contact pads and silver metal heat spreader marked Intel Xeon Gold 5420+

Intel

Intel PK8071305120600 Xeon Gold 5420+ 28-core server processor

SKU CH-3W23-QXNZ8 MPN PK8071305120600

28-core server CPU with 56 threads, 2.0 GHz base clock, 4.1 GHz max turbo, 52.5 MB L3 cache, DDR5-4400 support and 205 W TDP in LGA 4677 socket

  • NameXeon Gold 5420+
  • CPU Socket TypeLGA 4677
  • Core NameSapphire Rapids
  • # of Cores28-Core
  • # of Threads56
  • Operating Frequency2.0 GHz
  • 28 cores and 56 threads handle heavy parallel workloads
  • 0 GHz base with 4.1 GHz max turbo adapts to burst demands
  • 5 MB L3 cache keeps large data sets close to cores
  • DDR5 4400 support across 8 channels feeds memory bandwidth
  • 80 PCIe 5.0 lanes give high-speed I/O headroom

Xeon Gold 5420+ 28-core server processor

The Intel Xeon Gold 5420+ is a 28-core, 56-thread server CPU built on 10 nm Sapphire Rapids architecture. It operates at a 2.0 GHz base frequency with a 4.1 GHz maximum turbo speed and includes 52.5 MB of L3 cache. The processor fits the LGA 4677 socket and has a 205 W thermal design power.

Upgrade path from older Xeon platforms

This processor supports DDR5 4400 memory across eight channels with a maximum capacity of 4 TB. It provides 80 lanes of PCI Express 5.0 connectivity and supports two-socket scalability. The jump is worth it for workloads that need higher core counts, faster memory throughput and expanded I/O bandwidth compared to previous dual-socket generations.

Suited for dual-socket compute nodes

The 5420+ targets virtualisation hosts, database servers and high-performance compute clusters that benefit from 56 threads and large memory capacity. Buyers who need single-socket operation only, lower power envelopes or fewer than 28 cores should evaluate other SKUs in the Xeon Gold or Silver range.

Points forts

  • 28 cores and 56 threads handle heavy parallel workloads
  • 0 GHz base with 4.1 GHz max turbo adapts to burst demands
  • 5 MB L3 cache keeps large data sets close to cores
  • DDR5 4400 support across 8 channels feeds memory bandwidth
  • 80 PCIe 5.0 lanes give high-speed I/O headroom

Caractéristiques

BrandIntel
SeriesIntel Xeon Gold
NameXeon Gold 5420+
ModelPK8071305120600
CPU Socket TypeLGA 4677
Core NameSapphire Rapids
# of Cores28-Core
# of Threads56
Operating Frequency2.0 GHz
Max Turbo Frequency4.1 GHz
L3 Cache52.5MB
64-Bit SupportYes
Manufacturing Tech10 nm
Integrated Memory Controller SpeedDDR5 4400
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 Power205W
Cooling DeviceCooling device not included - Processor Only
Poids d’expédition0.45 kg
Dimensions du colis25 × 25 × 25 mm

Questions sur cet article

Will this LGA 4677 socket processor fit my server board?

The CPU uses the LGA 4677 socket and has a 205 W TDP, so the motherboard must provide that socket and a cooling solution rated for at least 205 W.

What is the correct way to install this CPU and what step is often missed?

Align the notches on the processor with the socket keys, lower it gently, then secure the retention mechanism; the step often missed is applying fresh thermal paste before mounting the heatsink.

When will I need to replace the thermal paste on this 28-core processor?

Thermal paste should be replaced whenever the heatsink is removed or if temperatures rise above normal; under typical server loads it lasts several years before reapplication is needed.

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