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AMD Phenom 8400 Triple- vs Intel Core2 Duo E7400

The AMD Phenom 8400 Triple-Core is newer than Intel Core2 Duo E7400 @ 2.80GHz also around 10% faster in multi-threaded (CPU Mark) testing, but Intel Core2 Duo E7400 @ 2.80GHz is around 27% faster in single-thread testing. However, AMD Phenom 8400 Triple-Core uses around 38% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 1432 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 Phenom 8400 Triple-Core×Intel Core2 Duo E7400 @ 2.80GHz+ ADD
Price Search Online Search Online
Socket TypeAM2+LGA775
CPU ClassDesktopDesktop
Clockspeed2.1 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)2 (Threads: 2)
CacheL1: 384KB, L2: 1.5MB, L3: 2MBL1: 128KB, L2: 3.0MB, L3: 0MB
TDP95W65W
Yearly Running Cost$17.34$11.86
Other
First Seen on ChartQ1 2009Q4 2008
# of Samples1051327
CPU Value0.021.4
Single Thread Rating(% diff. to max in group)819(-26.6%)11173(0.0%)
CPU Mark(% diff. to max in group)1164(0.0%)1047(-10.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 22nd of January 2025 - Higher results represent better performance
AMD Phenom 8400 Triple-Core
1,164
Intel Core2 Duo E7400 @ 2.80GHz
1,047
CPU Value (CPU Mark / $Price)
As of 22nd of January 2025 - Higher results represent better value
AMD Phenom 8400 Triple-Core
NA
Intel Core2 Duo E7400 @ 2.80GHz
21.4
CPU Single Thread Rating
As of 22nd of January 2025 - Higher results represent better performance
AMD Phenom 8400 Triple-Core
819
Intel Core2 Duo E7400 @ 2.80GHz
1,117
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 Phenom 8400 Triple-Core Intel Core2 Duo E7400 @ 2.80GHz
Max TDP95W65W
Power consumption per day (kWh)0.190.13
Running cost per day$0.048$0.033
Power consumption per year (kWh)69.347.5
Running cost per year$17.34$11.86
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.