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Silver rectangular server processor with gold contact pads and green substrate

HPE

HPE Xeon Silver 4208 2.10 GHz 8-Core 85W P02491-B21 server processor

SKU CH-APGM-J9HRR MPN P02491-B21

8-core Cascade Lake server CPU with 16 threads, 11 MB L3 cache and 85 W TDP for LGA 3647 platforms

  • Product nameXeon Silver 4208
  • CPU cores8-Core
  • CPU socketLGA 3647
  • Maximum turbo clock3.2 GHz
  • TDP rating85 W
  • Processor codenameCascade Lake
  • 8-core Cascade Lake architecture handles multi-threaded workloads efficiently
  • 16 threads with Hyper-Threading boost virtualization and container density
  • 11 MB L3 cache reduces latency for data-intensive applications
  • 6-channel DDR4 2400 memory controller maximizes bandwidth for large datasets
  • 85 W TDP balances performance with power-constrained server environments

Server Processor for ProLiant DL380 Gen10

The HPE Xeon Silver 4208 is an 8-core, 16-thread server processor built on 14 nm Cascade Lake architecture. It operates at a 2.10 GHz base frequency with a maximum turbo frequency of 3.20 GHz. The kit is designed for the LGA 3647 socket in HPE ProLiant DL380 Gen10 systems.

85W Thermal Design Power

With a thermal design power of 85W, the processor maintains a moderate power envelope for dense server deployments. The 14 nm manufacturing process supports efficient thermal characteristics under typical workloads. Six-channel DDR4 2400 memory control distributes memory traffic without excessive controller power draw.

Sustained Load Behaviour

Under sustained load the 11MB L3 cache and 48 PCI Express 3.0 lanes help maintain throughput for virtualised and multi-threaded applications. Hyper-Threading across 16 threads keeps execution units fed during prolonged compute tasks. The 85W limit constrains peak turbo duration, so clock speeds settle to levels the platform cooling can sustain continuously.

How it compares

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

Price $674.99
Cheaper than about 68% of the 621 comparable items (median $1,561.99).
CPU cores 8-Core
Lower than about 90% of the 386 comparable items (median 24).
Maximum turbo clock 3.2 GHz
Lower than about 91% of the 327 comparable items (median 3.9 GHz).

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Specifications

Product
Brand nameHPE
Product lineIntel Xeon Silver
Model nameP02491-B21
Product nameXeon Silver 4208
Performance
Working frequency2.1 GHz
Processor
CPU cores8-Core
CPU socketLGA 3647
Maximum turbo clock3.2 GHz
TDP rating85 W
Processor codenameCascade Lake
CPU threads16
Level 3 cache11 MB
64-bit capableYes
Hyper-ThreadingYes
Process node14 nm
Virtualization supportYes
Maximum PCIe lanes48
Memory
Supported memory speedDDR4 2400
Channel configuration6 Channel
Ports & slots
PCIe generation3.0
Size & build
Shipping weight1.27 kg
Package size292 × 191 × 175 mm

Questions about this item

How is the LGA 3647 processor installed in a ProLiant DL380 Gen10 and what step is often missed?

Align the triangle markers on the CPU and socket, lower the load plate, then torque the four captive screws in a cross pattern to the specified value; skipping the cross-pattern tightening is the common error.

What maintenance or replacement will the Xeon Silver 4208 need during its service life?

The processor itself has no user-serviceable parts; plan to replace thermal paste and inspect the heatsink retention mechanism whenever the cooler is removed for cleaning or upgrade.

What limit appears first when the 85W TDP chip runs sustained workloads at 2.10 GHz base frequency?

The 85W thermal design power becomes the binding constraint; the cooling solution must dissipate that heat continuously to prevent throttling before turbo limits are reached.

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