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Intel

Intel Xeon W7-3465X 28-core 2.5 GHz server processor PK8071305081700

SKU CH-6BTW-3W86C MPN PK8071305081700

28-core Xeon server CPU reaching 4.80 GHz with 75 MB L3 cache, 8-channel DDR5-4800 support and 112 PCIe 5.0 lanes

  • Product nameXeon W7-3465X
  • CPU cores28-Core
  • CPU socketLGA 4677
  • Maximum turbo clock4.8 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.8
  • TDP ratingProcessor Base Power: 300 W Maximum Turbo Power: 360 W
  • Processor codenameSapphire Rapids
  • 28 cores and 56 threads handle heavy parallel workloads
  • 80 GHz max turbo frequency accelerates single-thread bursts
  • 75 MB L3 cache reduces latency for large data sets
  • Eight-channel DDR5 4800 controller supports up to 4 TB memory
  • 112 PCI Express 5.0 lanes provide high-bandwidth I/O expansion

28-core Xeon for multi-threaded workloads

The Intel Xeon W7-3465X is a 28-core, 56-thread server processor built for workstations that run heavily parallel applications. It operates at a 2.5 GHz base frequency and can reach 4.80 GHz with Intel Turbo Boost Max Technology 3.0. The 75 MB L3 cache and 7 nm manufacturing help sustain throughput across many simultaneous threads. Buyers who need only lightly threaded performance or lower core counts will not benefit from this design.

DDR5-4800 eight-channel memory and PCIe 5.0 limits

The integrated memory controller supports DDR5 at 4800 MT/s across eight channels for a maximum capacity of 4 TB. Memory bandwidth scales with populated channels; partially filled configurations reduce peak throughput. The CPU provides 112 lanes of PCI Express 5.0 for GPUs, storage and networking add-in cards. Platforms that cannot supply eight memory channels or that limit PCIe lane allocation will constrain the processor’s I/O potential.

Verify LGA 4677 socket.

This processor requires a motherboard with an LGA 4677 socket and a workstation-class chipset that enables the full eight-channel memory and 112-lane PCIe topology. The cooling solution must dissipate a 300 W base power and up to 360 W under maximum turbo. The physical package measures 3.1 by 2.2 inches, so the cooler mounting pattern and case clearance must accommodate those dimensions. Systems without adequate VRM phases or firmware support for Sapphire Rapids will not boot.

How it compares

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

Price $2,587.99
Pricier than about 68% of the 621 comparable items (median $1,561.99).
CPU cores 28-Core
Higher than about 55% of the 386 comparable items (median 24).
Maximum turbo clock 4.8 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.8 GHz Intel Turbo Boost Technology 2.0 Frequency: 4.6 GHz
Higher than about 90% 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 lineIntel Xeon W
Model namePK8071305081700
Product nameXeon W7-3465X
Performance
Working frequency2.5 GHz
Processor
CPU cores28-Core
CPU socketLGA 4677
Maximum turbo clock4.8 GHz
Intel Turbo Boost Max Technology 3.0 Frequency: 4.8 GHz
Intel Turbo Boost Technology 2.0 Frequency: 4.6 GHz
TDP ratingProcessor Base Power: 300 W
Maximum Turbo Power: 360 W
Processor codenameSapphire Rapids
CPU threads56
Level 3 cache75 MB
64-bit capableYes
Hyper-ThreadingYes
Process node7 nm
Virtualization supportYes
Maximum PCIe lanes112
Memory
Supported memory speedDDR5 4800
Max supported memory4 TB
Channel configuration8 Channel
Ports & slots
PCIe generation5.0
Size & build
Shipping weight1.14 kg
Package size195 × 147 × 130 mm

Questions about this item

Should I choose the 28-core 2.5 GHz model or a higher-core alternative?

This SKU is a single 28-core, 56-thread part with 75 MB L3 cache and a 4.80 GHz max turbo; no other core counts or clock speeds are offered under this model number.

What does the 4.80 GHz max turbo mean once the chip is installed?

Under Intel Turbo Boost Max Technology 3.0, one or two favoured cores can reach 4.80 GHz for short bursts while the 300 W base power and 360 W maximum turbo power limits and the 75 °C thermal specification govern sustained operation.

How does the PCIe 5.0 interface with 112 lanes cap real-world expansion?

The processor exposes up to 112 PCIe 5.0 lanes, so multiple x16 GPUs, x8 storage controllers or x4 NICs can run simultaneously at full 5.0 bandwidth without lane sharing.

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