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CPU Benchmarks

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Intel Xeon X3440 vs Xeon E5440

The Intel Xeon X3440 @ 2.53GHz is newer than Intel Xeon E5440 @ 2.83GHz also around 14% faster in multi-threaded (CPU Mark) testing, but Intel Xeon E5440 @ 2.83GHz is around 7% faster in single-thread testing. However, Intel Xeon X3440 @ 2.53GHz uses around 17% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 689 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Xeon X3440 @ 2.53GHz×Intel Xeon E5440 @ 2.83GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1156LGA771
CPU ClassServerServer
Clockspeed2.5 GHz2.8 GHz
Turbo SpeedUp to 2.9 GHzNot Supported
# of Physical Cores4 (Threads: 8)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 12.0MB, L3: 0MB
TDP95W80W
Yearly Running Cost$17.34$14.60
Other
First Seen on ChartQ4 2009Q1 2009
# of Samples163526
CPU Value64.562.8
Single Thread Rating(% diff. to max in group)1142(-7.1%)1229(0.0%)
CPU Mark(% diff. to max in group)2773(0.0%)2386(-13.9%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Xeon X3440 @ 2.53GHz
2,773
Intel Xeon E5440 @ 2.83GHz
2,386
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 6th of April 2025 - Higher results represent better value
Intel Xeon X3440 @ 2.53GHz
64.5
Intel Xeon E5440 @ 2.83GHz
62.8
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Xeon X3440 @ 2.53GHz
1,142
Intel Xeon E5440 @ 2.83GHz
1,229
PassMark Software © 2008-2025
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Xeon X3440 @ 2.53GHz Intel Xeon E5440 @ 2.83GHz
Max TDP95W80W
Power consumption per day (kWh)0.190.16
Running cost per day$0.048$0.040
Power consumption per year (kWh)69.358.4
Running cost per year$17.34$14.60
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.