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Intel i7-3555LE vs i3-3120M

The Intel Core i7-3555LE @ 2.50GHz is newer than Intel Core i3-3120M @ 2.50GHz and is around 31% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core i3-3120M @ 2.50GHz 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 1479 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 Core i7-3555LE @ 2.50GHz×Intel Core i3-3120M @ 2.50GHz+ ADD
Price Search Online Search Online
Socket TypeBGA1023PGA988
CPU ClassLaptopLaptop
Clockspeed2.5 GHz2.5 GHz
Turbo SpeedUp to 3.2 GHzNot Supported
# of Physical Cores2 (Threads: 4)2 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 4MBL1: 128KB, L2: 0.5MB, L3: 3MB
TDP25W35W
Yearly Running Cost$4.56$6.39
Other
First Seen on ChartQ2 2012Q1 2012
# of Samples81471
CPU Rank34703830
CPU Value0.015.6
Single Thread Rating(% diff. to max in group)1336(0.0%)1273(-4.7%)
CPU Mark(% diff. to max in group)2238(0.0%)1713(-23.5%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 5th of March 2026 - Higher results represent better performance
Intel Core i7-3555LE @ 2.50GHz
2,238
Intel Core i3-3120M @ 2.50GHz
1,713
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 5th of March 2026 - Higher results represent better value
Intel Core i7-3555LE @ 2.50GHz
NA
Intel Core i3-3120M @ 2.50GHz
15.6
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 5th of March 2026 - Higher results represent better performance
Intel Core i7-3555LE @ 2.50GHz
1,336
Intel Core i3-3120M @ 2.50GHz
1,273
PassMark Software © 2008-2026
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 Core i7-3555LE @ 2.50GHz Intel Core i3-3120M @ 2.50GHz
Max TDP25W35W
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.