Intel Xeon E5620 2.4GHz Quad-Core LGA1366 Server Processor

Server CPU for Dual-Socket LGA1366 Platforms

The Intel Xeon E5620 is a four-core server processor for dual-socket LGA1366 mainboards. It runs at 2.40 GHz base and reaches 2.66 GHz under Turbo Boost 1.0. Hyper-Threading exposes eight threads, and 12 MB of SmartCache sits shared across the cores.

Two QPI ports carry 5.86 GT/s links, so paired chips exchange data without crossing the chipset. A three-channel DDR3 controller accepts 800 and 1066 MT/s registered modules with ECC, addressing up to 288 GB per socket pair. Peak memory bandwidth reaches 25.6 GB/s.

Thermal design power is 80 W against a 77.6 °C case limit, which suits 1U and 2U chassis with standard active heatsinks. Virtualisation covers VT-x, VT-d and EPT, and AES-NI runs encryption in hardware. The 32 nm Westmere-EP die drops into the FCLGA1366 socket with a 42.5 x 45 mm package.

Key Features

• Four Cores, Eight Threads
  Hyper-Threading doubles the thread count for virtual machines and concurrent database sessions.

• Turbo Boost 1.0
  Clock rises to 2.66 GHz when thermal headroom allows, lifting single-thread throughput.

• Dual QPI Interconnect

  • Two 5.86 GT/s links between paired sockets
  • Direct cache coherency without a front-side bus
  • Supports two-socket configurations per board

• Three-Channel ECC Memory
  Registered DDR3 at 800 or 1066 MT/s scales to 288 GB with error correction enabled.

• Hardware Virtualisation
  VT-x, VT-d and extended page tables pass devices through to guests with low overhead.

• AES-NI Acceleration
  The instruction set offloads cipher operations from software to the core pipeline.

Specifications

What’s in the Box

• Processor in FCLGA1366 package

• Protective clamshell

Why Choose This Server Chip

• Two-socket boards gain eight physical cores and sixteen threads from a matched pair.

• Registered ECC memory support keeps large database instances stable under load.

• The 80 W envelope allows dense rack builds without upgrading cooling hardware.

• VT-d passthrough lets hypervisors hand NICs and HBAs to individual guests.

• AES-NI cuts the CPU cost of encrypted storage and TLS termination.

• Existing LGA1366 infrastructure accepts the chip without a platform change.

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