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AMD EPYC 7451 vs EPYC 7543

The AMD EPYC 7543 is newer than AMD EPYC 7451 and is significantly faster in multi-threaded (CPU Mark) testing, it is around 18% faster in single-thread testing. However, AMD EPYC 7543 uses around 29% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 16 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 EPYC 7451×AMD EPYC 7543+ ADD
Price Search Online Search Online
Socket TypeSP3SP3
CPU ClassServerServer
Clockspeed2.3 GHz2.8 GHz
Turbo SpeedUp to 3.2 GHzUp to 3.7 GHz
# of Physical Cores24 (Threads: 48)32 (Threads: 64)
CacheL1: 2,304KB, L2: 12.0MB, L3: 64MBL1: 2,048KB, L2: 16.0MB, L3: 256MB
TDP180W240W
Yearly Running Cost$32.85$43.80
Other
First Seen on ChartQ1 2018Q2 2021
# of Samples610
CPU Value14.516.2
Single Thread Rating(% diff. to max in group)1955(-18.3%)2394(0.0%)
CPU Mark(% diff. to max in group)25863(-57.5%)60901(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of December 2024 - Higher results represent better performance
AMD EPYC 7451
25,863
AMD EPYC 7543
60,901
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 22nd of December 2024 - Higher results represent better value
AMD EPYC 7451
14.5
AMD EPYC 7543
16.2
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 22nd of December 2024 - Higher results represent better performance
AMD EPYC 7451
1,955
AMD EPYC 7543
2,394
PassMark Software © 2008-2024
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 EPYC 7451 AMD EPYC 7543
Max TDP180W240W
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.