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Intel Xeon L5638 vs Xeon E3-1275

The Intel Xeon E3-1275 @ 3.40GHz is newer than Intel Xeon L5638 @ 2.00GHz also around 33% faster in multi-threaded (CPU Mark) testing and is significantly faster in single-thread testing. However, Intel Xeon E3-1275 @ 3.40GHz uses around 45% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 136 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 L5638 @ 2.00GHz×Intel Xeon E3-1275 @ 3.40GHz+ ADD
Price Search Online $160 - BUY
Socket TypeLGA1366LGA1155
CPU ClassServerServer
Clockspeed2.0 GHz3.4 GHz
Turbo SpeedUp to 2.4 GHzUp to 3.8 GHz
# of Physical Cores6 (Threads: 12)4 (Threads: 8)
CacheL1: 512KB, L2: 2.0MB, L3: 12MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP60W95W
Yearly Running Cost$10.95$17.34
Other
First Seen on ChartQ2 2011Q2 2011
# of Samples14122
CPU Value53.034.5
Single Thread Rating(% diff. to max in group)862(-51.4%)1773(0.0%)
CPU Mark(% diff. to max in group)3707(-32.8%)5516(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 24th of November 2024 - Higher results represent better performance
Intel Xeon L5638 @ 2.00GHz
3,707
Intel Xeon E3-1275 @ 3.40GHz
5,516
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 24th of November 2024 - Higher results represent better value
Intel Xeon L5638 @ 2.00GHz
53.0
Intel Xeon E3-1275 @ 3.40GHz
34.5
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 24th of November 2024 - Higher results represent better performance
Intel Xeon L5638 @ 2.00GHz
862
Intel Xeon E3-1275 @ 3.40GHz
1,773
PassMark Software © 2008-2024
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 L5638 @ 2.00GHz Intel Xeon E3-1275 @ 3.40GHz
Max TDP60W95W
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.