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CPU Benchmarks

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Intel Core2 Duo E6540 vs AMD Athlon 64 X2 Dual 6400+

The Intel Core2 Duo E6540 @ 2.33GHz is newer than AMD Athlon 64 X2 Dual Core 6400+, while AMD Athlon 64 X2 Dual Core 6400+ is around 18% faster in multi-threaded (CPU Mark) testing, it is around 14% faster in single-thread testing. However, Intel Core2 Duo E6540 @ 2.33GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 248 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 Core2 Duo E6540 @ 2.33GHz×AMD Athlon 64 X2 Dual Core 6400++ ADD
Price Search Online Search Online
Socket TypeLGA775AM2
CPU ClassDesktopDesktop
Clockspeed2.3 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 128KB, L2: 4.0MB, L3: 0MBL1: 256KB, L2: 2.0MB,
TDP65W125W
Yearly Running Cost$11.86$22.81
Other
First Seen on ChartQ2 2009Q4 2008
# of Samples9239
CPU Value0.03.9
Single Thread Rating(% diff. to max in group)9693(-14.3%)11313(0.0%)
CPU Mark(% diff. to max in group)808(-17.7%)982(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 2nd of April 2025 - Higher results represent better performance
Intel Core2 Duo E6540 @ 2.33GHz
808
AMD Athlon 64 X2 Dual Core 6400+
982
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 2nd of April 2025 - Higher results represent better value
Intel Core2 Duo E6540 @ 2.33GHz
NA
AMD Athlon 64 X2 Dual Core 6400+
3.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 2nd of April 2025 - Higher results represent better performance
Intel Core2 Duo E6540 @ 2.33GHz
969
AMD Athlon 64 X2 Dual Core 6400+
1,131
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 Core2 Duo E6540 @ 2.33GHz AMD Athlon 64 X2 Dual Core 6400+
Max TDP65W125W
Power consumption per day (kWh)0.130.25
Running cost per day$0.033$0.063
Power consumption per year (kWh)47.591.3
Running cost per year$11.86$22.81
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.