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AMD Opteron 3280 vs Intel Xeon E5640

The AMD Opteron 3280 is newer than Intel Xeon E5640 @ 2.67GHz however both CPUs have comparable multi-threaded (CPU Mark) and single-thread rating. Also, 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 69 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.

×AMD Opteron 3280×Intel Xeon E5640 @ 2.67GHz+ ADD
Price Search Online Search Online
Socket TypeAM3+LGA1366
CPU ClassServerServer
Clockspeed2.4 GHz2.7 GHz
Turbo SpeedUp to 2.7 GHzUp to 2.9 GHz
# of Physical Cores8 (in 8 physical modules)4 (Threads: 8)
CacheL1: 640KB, L2: 16.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 12MB
TDP65W80W
Yearly Running Cost$11.86$14.60
Other
First Seen on ChartQ3 2012Q2 2010
# of Samples1653
CPU Value52.555.5
Single Thread Rating(% diff. to max in group)1062(-10.7%)1189(0.0%)
CPU Mark(% diff. to max in group)3783(-1.4%)3837(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 15th of May 2025 - Higher results represent better performance
AMD Opteron 3280
3,783
Intel Xeon E5640 @ 2.67GHz
3,837
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 15th of May 2025 - Higher results represent better value
AMD Opteron 3280
52.5
Intel Xeon E5640 @ 2.67GHz
55.5
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 15th of May 2025 - Higher results represent better performance
AMD Opteron 3280
1,062
Intel Xeon E5640 @ 2.67GHz
1,189
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.
AMD Opteron 3280 Intel Xeon E5640 @ 2.67GHz
Max TDP65W80W
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.