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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Xeon E3-1280 vs Xeon X5687

The Intel Xeon E3-1280 @ 3.50GHz is newer than Intel Xeon X5687 @ 3.60GHz is around 9% faster in single-thread testing. Also, Intel Xeon X5687 @ 3.60GHz uses around 31% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 237 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 E3-1280 @ 3.50GHz×Intel Xeon X5687 @ 3.60GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1155LGA1366
CPU ClassServerServer
Clockspeed3.5 GHz3.6 GHz
Turbo SpeedUp to 3.9 GHzUp to 3.9 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L1: 256KB, L2: 1.0MB, L3: 12MB
TDP95W130W
Yearly Running Cost$17.34$23.73
Other
First Seen on ChartQ2 2011Q2 2011
# of Samples92145
CPU Value11.328.4
Single Thread Rating(% diff. to max in group)1783(0.0%)1643(-7.9%)
CPU Mark(% diff. to max in group)5612(0.0%)5386(-4.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 18th of November 2025 - Higher results represent better performance
Intel Xeon E3-1280 @ 3.50GHz
5,612
Intel Xeon X5687 @ 3.60GHz
5,386
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 18th of November 2025 - Higher results represent better value
Intel Xeon E3-1280 @ 3.50GHz
11.3
Intel Xeon X5687 @ 3.60GHz
28.4
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 18th of November 2025 - Higher results represent better performance
Intel Xeon E3-1280 @ 3.50GHz
1,783
Intel Xeon X5687 @ 3.60GHz
1,643
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 E3-1280 @ 3.50GHz Intel Xeon X5687 @ 3.60GHz
Max TDP95W130W
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.