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AMD Athlon 64 X2 Dual 6400+ vs Intel Core2 Duo E7400

The Intel Core2 Duo E7400 @ 2.80GHz is newer than AMD Athlon 64 X2 Dual Core 6400+ and has comparable multi-threaded (CPU Mark) and single-thread rating. However, Intel Core2 Duo E7400 @ 2.80GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 1559 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 Athlon 64 X2 Dual Core 6400+×Intel Core2 Duo E7400 @ 2.80GHz+ ADD
Price Search Online Search Online
Socket TypeAM2LGA775
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 2.0MB, L1: 128KB, L2: 3.0MB, L3: 0MB
TDP125W65W
Yearly Running Cost$22.81$11.86
Other
First Seen on ChartQ4 2008Q4 2008
# of Samples2381321
CPU Value4.021.1
Single Thread Rating(% diff. to max in group)11413(0.0%)11113(-2.6%)
CPU Mark(% diff. to max in group)998(-3.6%)1035(0.0%)
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 1st of December 2024 - Higher results represent better performance
AMD Athlon 64 X2 Dual Core 6400+
998
Intel Core2 Duo E7400 @ 2.80GHz
1,035
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 1st of December 2024 - Higher results represent better value
AMD Athlon 64 X2 Dual Core 6400+
4.0
Intel Core2 Duo E7400 @ 2.80GHz
21.1
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 1st of December 2024 - Higher results represent better performance
AMD Athlon 64 X2 Dual Core 6400+
1,141
Intel Core2 Duo E7400 @ 2.80GHz
1,111
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 Athlon 64 X2 Dual Core 6400+ Intel Core2 Duo E7400 @ 2.80GHz
Max TDP125W65W
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.