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Intel Pentium Dual T2390 vs Core2 Duo P8400

The Intel Pentium Dual T2390 @ 1.86GHz is newer than Intel Core2 Duo P8400 @ 2.26GHz, while Intel Core2 Duo P8400 @ 2.26GHz is around 12% faster in multi-threaded (CPU Mark) testing, it is around 23% faster in single-thread testing. However, Intel Pentium Dual T2390 @ 1.86GHz uses around 33% more power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 1273 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 Pentium Dual T2390 @ 1.86GHz×Intel Core2 Duo P8400 @ 2.26GHz+ ADD
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Socket TypePPGA478BGA479
CPU ClassLaptopLaptop
Clockspeed1.9 GHz2.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheNA2L1: 128KB, L2: 3.0MB, L3: 0MB
TDP35W25W
Yearly Running Cost$6.39$4.56
Other
First Seen on ChartQ3 2022Q4 2008
# of Samples11272
CPU Value0.02.9
Single Thread Rating(% diff. to max in group)712(-22.6%)9203(0.0%)
CPU Mark(% diff. to max in group)745(-12.3%)849(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
2 - Information not available. Do you know? Notify Us.
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 24th of November 2024 - Higher results represent better performance
Intel Pentium Dual T2390 @ 1.86GHz
745
Intel Core2 Duo P8400 @ 2.26GHz
849
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 24th of November 2024 - Higher results represent better value
Intel Pentium Dual T2390 @ 1.86GHz
NA
Intel Core2 Duo P8400 @ 2.26GHz
2.9
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 24th of November 2024 - Higher results represent better performance
Intel Pentium Dual T2390 @ 1.86GHz
712
Intel Core2 Duo P8400 @ 2.26GHz
920
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.
Intel Pentium Dual T2390 @ 1.86GHz Intel Core2 Duo P8400 @ 2.26GHz
Max TDP35W25W
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.