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CPU Benchmarks

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Intel Core2 Duo SL9400 vs Core2 Duo P8400

The Intel Core2 Duo SL9400 @ 1.86GHz is newer than Intel Core2 Duo P8400 @ 2.26GHz, while Intel Core2 Duo P8400 @ 2.26GHz is around 11% faster in multi-threaded (CPU Mark) testing, it is around 15% faster in single-thread testing. However, Intel Core2 Duo P8400 @ 2.26GHz uses around 38% more power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 1458 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 SL9400 @ 1.86GHz×Intel Core2 Duo P8400 @ 2.26GHz+ ADD
Price Search Online Search Online
Socket TypeBGA956BGA479
CPU ClassLaptopLaptop
Clockspeed1.9 GHz2.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 128KB, L2: 6.0MB, L3: 0MBL1: 128KB, L2: 3.0MB, L3: 0MB
TDP17W25W
Yearly Running Cost$3.10$4.56
Other
First Seen on ChartQ1 2009Q4 2008
# of Samples1811277
CPU Value3.02.9
Single Thread Rating(% diff. to max in group)7863(-14.6%)9203(0.0%)
CPU Mark(% diff. to max in group)759(-11.1%)854(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 8th of January 2025 - Higher results represent better performance
Intel Core2 Duo SL9400 @ 1.86GHz
759
Intel Core2 Duo P8400 @ 2.26GHz
854
CPU Value (CPU Mark / $Price)
As of 8th of January 2025 - Higher results represent better value
Intel Core2 Duo SL9400 @ 1.86GHz
3.0
Intel Core2 Duo P8400 @ 2.26GHz
2.9
CPU Single Thread Rating
As of 8th of January 2025 - Higher results represent better performance
Intel Core2 Duo SL9400 @ 1.86GHz
786
Intel Core2 Duo P8400 @ 2.26GHz
920
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 SL9400 @ 1.86GHz Intel Core2 Duo P8400 @ 2.26GHz
Max TDP17W25W
Power consumption per day (kWh)0.030.05
Running cost per day$0.009$0.013
Power consumption per year (kWh)12.418.3
Running cost per year$3.10$4.56
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.