X5650 Intel Xeon 6-Core 2.66GHz 6.40GT/s QPI 12MB L3 Cache Processor Review

X5650 Intel Xeon 6-Core 2.66GHz 6.40GT/s QPI 12MB L3 Cache Processor Review

Posted by Faisal Ismail on Jan 2, 2023 05:54:19

Technical Overview

Intel XeonX5650 is part of the Xeon lineup and is built with Nehalem architecture and memory controllers. This Intel Xeon X5650 2.6GHz Processor is designed specifically for servers and workstations with a 32nm production node that uses 1170 million transistors.

X5650 Technical Overview

The X5650 is a high-performing server processor capable of handling several complex tasks simultaneously. This processor comprises hyper-threading technology that has doubled the thread count to 12, followed by 6 cores and LGA 1366 sockets. The performance of these systems can further be enhanced with up to two Xeon X5650 PCs that can work together in a multiprocessor SMP configuration. Furthermore, this processor can operate at around 2.66 GHz, which can boost up to 3.66 GHz depending on the workload. However, this processor consumes a great deal of power with a TDP of 95W. The multiplier is locked on Intel X5650, limiting its overclocking potential. Moreover, this Xeon Processor supports DDR3 memory that supports triple channel interface, i.e., DDR3-800, DDR3-1066, and DDR3-1333.

Additionally, the 2.66GHz processor supports several advanced features, such as ECC memory, that help with mission-critical and complex programs while minimizing the probability of data corruption. Further, this Intel Xeon CPU uses a PCI-Express Gen 2 connection. But this processor lacks integrated graphics, so you may be required to add a graphics card. The performance is impressive and surpasses most Ivy Bridge-based desktop CPUs, but it comes at an extremely high price.


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  • C200 M2 High-Density Rack-Mount Server
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  • C250 M2 Extended-Memory Rack-Mount Server

Advanced Features:

  • Enhanced SpeedStep technology
  • Hyper-Threading Technology
  • Demand Based Switching
  • Execute Disable Bit capability
  • Intel Virtualization Technology
  • Intel Turbo Boost Technology
  • Intel 64 Technology
  • Intel Trusted Execution Technology
  • Enhanced Halt State (C1E)
  • streaming SIMD extensions 4.2.

X5650 Intel Xeon 6-Core CPU


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Part No.


Processor Type



Xeon Processor

Technical Information

Core Model Type/ProcNo.


Processor Code Name

Westmere EP

Core Stepping


Manufacturing Technology

32 nm

CPU ID String


# of Cores


# of Threads


Clock Speed

2.66 GHz

L3 Cache Size

12 MB

Front Side Bus / QuickPath Interconnect

6.40 GT/s QPI

Thermal Power

95 Watts

VID Voltage Range


CPU Socket Type

LGA 1366

Product Condition


About Intel

Intel is a multinational corporation that deals in the research and development of integrated circuits and produces semiconductors. Intel was founded in 1968 by Gordon Moore, Robert Noyce, and Arthur Rock. Intel is one of the largest and highest-valued companies in the world. Intel is headquartered in Santa Clara, California. Intel is one of the world's largest and highest-valued semiconductor chip makers. Intel also makes motherboard chipsets, flash memory, graphics cards, embedded processors, and other devices related to communications and computing.

Talk To Experts at Servers4less

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