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CPU Benchmarks

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Intel Xeon E5640 vs AMD Opteron 3280

The AMD Opteron 3280 is newer than Intel Xeon E5640 @ 2.67GHz, while the multi-threaded (CPU Mark) is simliar, Intel Xeon E5640 @ 2.67GHz is around 13% faster in single-thread testing. However, Intel Xeon E5640 @ 2.67GHz uses around 21% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 66 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 E5640 @ 2.67GHz×AMD Opteron 3280+ ADD
Price Search Online Search Online
Socket TypeLGA1366AM3+
CPU ClassServerServer
Clockspeed2.7 GHz2.4 GHz
Turbo SpeedUp to 2.9 GHzUp to 2.7 GHz
# of Physical Cores4 (Threads: 8)8 (in 8 physical modules)
CacheL1: 256KB, L2: 1.0MB, L3: 12MBL1: 640KB, L2: 16.0MB, L3: 8MB
TDP80W65W
Yearly Running Cost$14.60$11.86
Other
First Seen on ChartQ2 2010Q3 2012
# of Samples5313
CPU Value55.551.7
Single Thread Rating(% diff. to max in group)1189(0.0%)1036(-12.9%)
CPU Mark(% diff. to max in group)3837(0.0%)3723(-3.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Xeon E5640 @ 2.67GHz
3,837
AMD Opteron 3280
3,723
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 6th of April 2025 - Higher results represent better value
Intel Xeon E5640 @ 2.67GHz
55.5
AMD Opteron 3280
51.7
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Xeon E5640 @ 2.67GHz
1,189
AMD Opteron 3280
1,036
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 E5640 @ 2.67GHz AMD Opteron 3280
Max TDP80W65W
Power consumption per day (kWh)0.160.13
Running cost per day$0.040$0.033
Power consumption per year (kWh)58.447.5
Running cost per year$14.60$11.86
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.