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CPU Benchmarks

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Intel Xeon E5420 vs Xeon W5580

The Intel Xeon W5580 @ 3.20GHz is newer than Intel Xeon E5420 @ 2.50GHz and is significantly faster in multi-threaded (CPU Mark) testing. The Intel Xeon W5580 @ 3.20GHz is around 41% faster in single-thread testing. Also, Intel Xeon W5580 @ 3.20GHz uses around 48% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 268 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 E5420 @ 2.50GHz×Intel Xeon W5580 @ 3.20GHz+ ADD
Price Search Online Search Online
Socket TypeLGA771LGA1366
CPU ClassServerServer
Clockspeed2.5 GHz3.2 GHz
Turbo SpeedNot SupportedUp to 3.5 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 8)
CacheL1: 256KB, L2: 12.0MB, L3: 0MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP80W130W
Yearly Running Cost$14.60$23.73
Other
First Seen on ChartQ1 2009Q1 2009
# of Samples23434
CPU Value8.15.9
Single Thread Rating(% diff. to max in group)1060(-29.1%)1496(0.0%)
CPU Mark(% diff. to max in group)2022(-40.7%)3407(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Xeon E5420 @ 2.50GHz
2,022
Intel Xeon W5580 @ 3.20GHz
3,407
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 24th of April 2025 - Higher results represent better value
Intel Xeon E5420 @ 2.50GHz
8.1
Intel Xeon W5580 @ 3.20GHz
5.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Xeon E5420 @ 2.50GHz
1,060
Intel Xeon W5580 @ 3.20GHz
1,496
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 E5420 @ 2.50GHz Intel Xeon W5580 @ 3.20GHz
Max TDP80W130W
Power consumption per day (kWh)0.160.26
Running cost per day$0.040$0.065
Power consumption per year (kWh)58.494.9
Running cost per year$14.60$23.73
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.