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Intel Xeon E5-1603 v4 vs AMD Opteron X3421 APU

The AMD Opteron X3421 APU is newer than Intel Xeon E5-1603 v4 @ 2.80GHz and is around -30% slower in multi-threaded (CPU Mark) testing. The AMD Opteron X3421 APU is around -19% slower in single-thread testing. Also, AMD Opteron X3421 APU uses substantially less power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 62 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 E5-1603 v4 @ 2.80GHz×AMD Opteron X3421 APU+ ADD
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Socket TypeFCLGA2011-3NA2
CPU ClassServerServer
Clockspeed2.8 GHz2.1 GHz
Turbo SpeedNot SupportedUp to 3.4 GHz
# of Physical Cores4 (Threads: 4)4 (in 4 physical modules)
CacheL1: 256KB, L2: 1.0MB, L3: 10MBL1: 512KB, L2: 4.0MB,
TDP140W35W
Yearly Running Cost$25.55$6.39
Other
First Seen on ChartQ1 2017Q2 2017
# of Samples3329
CPU Rank24312869
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)1752(0.0%)1418(-19.1%)
CPU Mark(% diff. to max in group)4710(0.0%)3306(-29.8%)
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CPU Mark Rating
As of 16th of February 2026 - Higher results represent better performance
Intel Xeon E5-1603 v4 @ 2.80GHz
4,710
AMD Opteron X3421 APU
3,306
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 16th of February 2026 - Higher results represent better performance
Intel Xeon E5-1603 v4 @ 2.80GHz
1,752
AMD Opteron X3421 APU
1,418
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.
Intel Xeon E5-1603 v4 @ 2.80GHz AMD Opteron X3421 APU
Max TDP140W35W
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.