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Intel Xeon L5420 vs Xeon W3520

The Intel Xeon W3520 @ 2.67GHz is newer than Intel Xeon L5420 @ 2.50GHz also around 27% faster in multi-threaded (CPU Mark) testing, it is around 13% faster in single-thread testing. However, Intel Xeon L5420 @ 2.50GHz uses substantially less power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 746 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 L5420 @ 2.50GHz×Intel Xeon W3520 @ 2.67GHz+ ADD
Price Search Online Search Online
Socket TypeLGA771LGA1366
CPU ClassServerServer
Clockspeed2.5 GHz2.7 GHz
Turbo SpeedNot SupportedUp to 2.9 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 8)
CacheL1: 256KB, L2: 12.0MB, L3: 0MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP50W130W
Yearly Running Cost$9.13$23.73
Other
First Seen on ChartQ1 2009Q1 2009
# of Samples224522
CPU Value77.949.6
Single Thread Rating(% diff. to max in group)1100(-13.1%)1266(0.0%)
CPU Mark(% diff. to max in group)2143(-26.8%)2928(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 14th of March 2025 - Higher results represent better performance
Intel Xeon L5420 @ 2.50GHz
2,143
Intel Xeon W3520 @ 2.67GHz
2,928
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 14th of March 2025 - Higher results represent better value
Intel Xeon L5420 @ 2.50GHz
77.9
Intel Xeon W3520 @ 2.67GHz
49.6
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 14th of March 2025 - Higher results represent better performance
Intel Xeon L5420 @ 2.50GHz
1,100
Intel Xeon W3520 @ 2.67GHz
1,266
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 L5420 @ 2.50GHz Intel Xeon W3520 @ 2.67GHz
Max TDP50W130W
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.