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Intel Xeon 5150 vs Xeon E5520

The Intel Xeon E5520 @ 2.27GHz is newer than Intel Xeon 5150 @ 2.66GHz and is significantly faster in multi-threaded (CPU Mark) testing, it is around 6% faster in single-thread testing. However, Intel Xeon E5520 @ 2.27GHz uses around 21% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 236 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 5150 @ 2.66GHz×Intel Xeon E5520 @ 2.27GHz+ ADD
Price Search Online Search Online
Socket TypeLGA771LGA1366
CPU ClassServerServer
Clockspeed2.7 GHz2.3 GHz
Turbo SpeedNot SupportedUp to 2.5 GHz
# of Physical Cores2 (Threads: 2)4 (Threads: 8)
CacheL1: 128KB, L2: 4.0MB, L3: 0MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP65W80W
Yearly Running Cost$11.86$14.60
Other
First Seen on ChartQ1 2009Q1 2009
# of Samples46190
CPU Value28.493.9
Single Thread Rating(% diff. to max in group)9943(-5.9%)1056(0.0%)
CPU Mark(% diff. to max in group)880(-65.3%)2533(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 20th of April 2025 - Higher results represent better performance
Intel Xeon 5150 @ 2.66GHz
880
Intel Xeon E5520 @ 2.27GHz
2,533
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 20th of April 2025 - Higher results represent better value
Intel Xeon 5150 @ 2.66GHz
28.4
Intel Xeon E5520 @ 2.27GHz
93.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 20th of April 2025 - Higher results represent better performance
Intel Xeon 5150 @ 2.66GHz
994
Intel Xeon E5520 @ 2.27GHz
1,056
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 5150 @ 2.66GHz Intel Xeon E5520 @ 2.27GHz
Max TDP65W80W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.