Xeon LGA771 vs LGA1366, Are 2 Quad Core of say 2.6 Ghz = 1 Quad Core of 3 Ghz

Posted on 2009-04-19
Last Modified: 2013-12-10

I am building a server and need advice on which processor to purchase. I have a few questions:

1. Are there any performance and speed issues between the Xeon LGA771 and LGA1366 Processors?

2. Is 1 x LGA771 Quad Core 3 Ghz Processor faster than 2 x LGA1366 Quad Core 2.2 Ghz Processor?
(1 Nos. x Intel E5450 3.0 Ghz > 2 Nos. x E5520 2.26 Ghz) Please Note: The above config costs the same.

I will install Windows Server 2003, Exchange 2007,Other Small Applications like I.e. Accounting Software, Scanner Routing, Fax Routing. This Server will also be the domain controller.

I Intend to Install Windows Server 2008 in the future and would like the system to be future ready atleast for say 3 years.
---- I Expect the system to give fast responses when opening applications and excute the tasks rapidly-----

Please advise.
Question by:rohit1712
    1 Comment
    LVL 70

    Accepted Solution

    A dual CPU E5520 system scores 10,451 on PassMark's CPUMark (an excellent measure of CPU "horsepower").   An E5450 scores 4759.  [A dual E5450 scores 9200]

    In other words, it isn't even close :-)    The Socket 1366 CPU's are use the newer Core i7 architecture -- a substantial improvement over the current Core architecture based CPUs.   ONE E5520 would outperform an E5450 :-)


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    How your wiki can always stay up-to-date

    Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
    - Increase transparency
    - Onboard new hires faster
    - Access from mobile/offline

    Suggested Solutions

    A little history Back in 1997 when I built my first custom computer using the revolutionary Gateway website I didn’t have much to choose from except for the CPU. The race between computer manufacturers was held back by processor manufacturers. They…
    Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
    Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

    761 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    7 Experts available now in Live!

    Get 1:1 Help Now