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Intel Xeon E3-1276 v3 vs Xeon E3-1240 v5

The Intel Xeon E3-1240 v5 @ 3.50GHz is newer than Intel Xeon E3-1276 v3 @ 3.60GHz and is around 10% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 426 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 E3-1276 v3 @ 3.60GHz×Intel Xeon E3-1240 v5 @ 3.50GHz+ ADD
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Socket TypeFCLGA1150FCLGA1151
CPU ClassServerServer
Clockspeed3.6 GHz3.5 GHz
Turbo SpeedUp to 4.0 GHzUp to 3.9 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP84W80W
Yearly Running Cost$15.33$14.60
Other
First Seen on ChartQ2 2014Q4 2015
# of Samples84342
CPU Value12.810.3
Single Thread Rating(% diff. to max in group)2288(0.0%)2283(-0.2%)
CPU Mark(% diff. to max in group)7543(-8.7%)8260(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 10th of November 2025 - Higher results represent better performance
Intel Xeon E3-1276 v3 @ 3.60GHz
7,543
Intel Xeon E3-1240 v5 @ 3.50GHz
8,260
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 10th of November 2025 - Higher results represent better value
Intel Xeon E3-1276 v3 @ 3.60GHz
12.8
Intel Xeon E3-1240 v5 @ 3.50GHz
10.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 10th of November 2025 - Higher results represent better performance
Intel Xeon E3-1276 v3 @ 3.60GHz
2,288
Intel Xeon E3-1240 v5 @ 3.50GHz
2,283
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 E3-1276 v3 @ 3.60GHz Intel Xeon E3-1240 v5 @ 3.50GHz
Max TDP84W80W
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.