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AMD Opteron 6238 vs Intel Xeon E5-2643 v3

The Intel Xeon E5-2643 v3 @ 3.40GHz is newer than AMD Opteron 6238 and is significantly faster in multi-threaded (CPU Mark) testing. It is also significantly faster in single-thread testing. Also, Intel Xeon E5-2643 v3 @ 3.40GHz uses around 16% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 83 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 6238×Intel Xeon E5-2643 v3 @ 3.40GHz+ ADD
Price Search Online Search Online
Socket TypeSocket G34LGA2011-v3
CPU ClassServerServer
Clockspeed2.6 GHz3.4 GHz
Turbo SpeedUp to 3.2 GHzUp to 3.7 GHz
# of Physical Cores12 (in 6 physical modules)6 (Threads: 12)
CacheL1: 960KB, L2: 24.0MB, L3: 12MBL1: 384KB, L2: 1.5MB, L3: 20MB
TDP115W135W
Yearly Running Cost$20.99$24.64
Other
First Seen on ChartQ4 2014Q1 2015
# of Samples281
CPU Rank22461577
CPU Value12.844.3
Single Thread Rating(% diff. to max in group)1157(-43.0%)2032(0.0%)
CPU Mark(% diff. to max in group)5625(-44.8%)10190(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 13th of March 2026 - Higher results represent better performance
AMD Opteron 6238
5,625
Intel Xeon E5-2643 v3 @ 3.40GHz
10,190
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 13th of March 2026 - Higher results represent better value
AMD Opteron 6238
12.8
Intel Xeon E5-2643 v3 @ 3.40GHz
44.3
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 13th of March 2026 - Higher results represent better performance
AMD Opteron 6238
1,157
Intel Xeon E5-2643 v3 @ 3.40GHz
2,032
PassMark Software © 2008-2026
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 6238 Intel Xeon E5-2643 v3 @ 3.40GHz
Max TDP115W135W
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.