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Intel Xeon E5603 vs Xeon W3580

The Intel Xeon E5603 @ 1.60GHz is newer than Intel Xeon W3580 @ 3.33GHz and is around -47% slower in multi-threaded (CPU Mark) testing. However, it is significantly slower in single-thread testing. Also, Intel Xeon W3580 @ 3.33GHz 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 105 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 E5603 @ 1.60GHz×Intel Xeon W3580 @ 3.33GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1366LGA1366
CPU ClassServerServer
Clockspeed1.6 GHz3.3 GHz
Turbo SpeedNot SupportedUp to 3.6 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 8)
CacheL1: 512KB, L2: 2.0MB, L1: 256KB, L2: 1.0MB, L3: 8MB
TDP80W130W
Yearly Running Cost$14.60$23.73
Other
First Seen on ChartQ2 2011Q4 2009
# of Samples2085
CPU Rank36042712
CPU Value21.717.0
Single Thread Rating(% diff. to max in group)712(-54.2%)1556(0.0%)
CPU Mark(% diff. to max in group)1935(-46.8%)3638(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 23rd of January 2026 - Higher results represent better performance
Intel Xeon E5603 @ 1.60GHz
1,935
Intel Xeon W3580 @ 3.33GHz
3,638
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 23rd of January 2026 - Higher results represent better value
Intel Xeon E5603 @ 1.60GHz
21.7
Intel Xeon W3580 @ 3.33GHz
17.0
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 23rd of January 2026 - Higher results represent better performance
Intel Xeon E5603 @ 1.60GHz
712
Intel Xeon W3580 @ 3.33GHz
1,556
PassMark Software © 2008-2026
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 E5603 @ 1.60GHz Intel Xeon W3580 @ 3.33GHz
Max TDP80W130W
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.