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Intel Xeon E3-1265L vs Xeon W3580

The Intel Xeon E3-1265L @ 2.40GHz is newer than Intel Xeon W3580 @ 3.33GHz also around 7% faster in multi-threaded (CPU Mark) testing, but Intel Xeon W3580 @ 3.33GHz is around 8% faster in single-thread testing. However, Intel Xeon E3-1265L @ 2.40GHz uses substantially less 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 E3-1265L @ 2.40GHz×Intel Xeon W3580 @ 3.33GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1155LGA1366
CPU ClassServerServer
Clockspeed2.4 GHz3.3 GHz
Turbo SpeedUp to 3.3 GHzUp to 3.6 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP45W130W
Yearly Running Cost$8.21$23.73
Other
First Seen on ChartQ3 2015Q4 2009
# of Samples2085
CPU Value14.517.0
Single Thread Rating(% diff. to max in group)1436(-7.7%)1556(0.0%)
CPU Mark(% diff. to max in group)3912(0.0%)3638(-7.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 26th of February 2025 - Higher results represent better performance
Intel Xeon E3-1265L @ 2.40GHz
3,912
Intel Xeon W3580 @ 3.33GHz
3,638
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 26th of February 2025 - Higher results represent better value
Intel Xeon E3-1265L @ 2.40GHz
14.5
Intel Xeon W3580 @ 3.33GHz
17.0
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 26th of February 2025 - Higher results represent better performance
Intel Xeon E3-1265L @ 2.40GHz
1,436
Intel Xeon W3580 @ 3.33GHz
1,556
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 E3-1265L @ 2.40GHz Intel Xeon W3580 @ 3.33GHz
Max TDP45W130W
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.