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Intel Core2 Duo T9900 vs Core2 Duo E8135

The Intel Core2 Duo T9900 @ 3.06GHz is newer than Intel Core2 Duo E8135 @ 2.66GHz also around 6% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, Intel Core2 Duo E8135 @ 2.66GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 296 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 T9900 @ 3.06GHz×Intel Core2 Duo E8135 @ 2.66GHz+ ADD
Price Search Online Search Online
Socket TypeBGA479,PGA478Socket P
CPU ClassLaptopLaptop
Clockspeed3.1 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 128KB, L2: 6.0MB, L3: 0MBL1: 128KB, L2: 6.0MB, L3: 0MB
TDP35WNA2
Yearly Running Cost$6.39NA
Other
First Seen on ChartQ3 2009Q1 2009
# of Samples27422
CPU Value3.00.0
Single Thread Rating(% diff. to max in group)1185(0.0%)11273(-5.0%)
CPU Mark(% diff. to max in group)1189(0.0%)1112(-6.5%)
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 26th of December 2024 - Higher results represent better performance
Intel Core2 Duo T9900 @ 3.06GHz
1,189
Intel Core2 Duo E8135 @ 2.66GHz
1,112
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 26th of December 2024 - Higher results represent better value
Intel Core2 Duo T9900 @ 3.06GHz
3.0
Intel Core2 Duo E8135 @ 2.66GHz
NA
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 26th of December 2024 - Higher results represent better performance
Intel Core2 Duo T9900 @ 3.06GHz
1,185
Intel Core2 Duo E8135 @ 2.66GHz
1,127
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 Core2 Duo T9900 @ 3.06GHz Intel Core2 Duo E8135 @ 2.66GHz
Max TDP35WNA
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.