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Intel Xeon X5492 vs AMD Opteron X3421 APU

The AMD Opteron X3421 APU is newer than Intel Xeon X5492 @ 3.40GHz and is around 13% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. 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 55 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 X5492 @ 3.40GHz×AMD Opteron X3421 APU+ ADD
Price Search Online Search Online
Socket TypeLGA771NA2
CPU ClassServerServer
Clockspeed3.4 GHz2.1 GHz
Turbo SpeedNot SupportedUp to 3.4 GHz
# of Physical Cores4 (Threads: 4)4 (in 4 physical modules)
CacheL1: 256KB, L2: 12.0MB, L3: 0MBL1: 512KB, L2: 4.0MB,
TDP150W35W
Yearly Running Cost$27.38$6.39
Other
First Seen on ChartQ1 2008Q2 2017
# of Samples2926
CPU Value2.10.0
Single Thread Rating(% diff. to max in group)1464(-1.2%)1481(0.0%)
CPU Mark(% diff. to max in group)2912(-11.7%)3299(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
2 - Information not available. Do you know? Notify Us.

CPU Mark Rating
As of 28th of April 2025 - Higher results represent better performance
Intel Xeon X5492 @ 3.40GHz
2,912
AMD Opteron X3421 APU
3,299
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 28th of April 2025 - Higher results represent better value
Intel Xeon X5492 @ 3.40GHz
2.1
AMD Opteron X3421 APU
NA
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 28th of April 2025 - Higher results represent better performance
Intel Xeon X5492 @ 3.40GHz
1,464
AMD Opteron X3421 APU
1,481
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 X5492 @ 3.40GHz AMD Opteron X3421 APU
Max TDP150W35W
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.