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Intel Pentium 6405U vs i7-3520M

The Intel Pentium 6405U @ 2.40GHz is newer than Intel Core i7-3520M @ 2.90GHz, while Intel Core i7-3520M @ 2.90GHz is around 18% faster in multi-threaded (CPU Mark) testing, it is around 21% faster in single-thread testing. However, Intel Pentium 6405U @ 2.40GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 2485 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 6405U @ 2.40GHz×Intel Core i7-3520M @ 2.90GHz+ ADD
Price Search Online Search Online
Socket TypeFCBGA1528BGA1023
CPU ClassLaptopLaptop
Clockspeed2.4 GHz2.9 GHz
Turbo SpeedNot SupportedUp to 3.6 GHz
# of Physical Cores2 (Threads: 4)2 (Threads: 4)
CacheL1: 128KB, L2: 0.5MB, L3: 2MBL1: 128KB, L2: 0.5MB, L3: 4MB
TDP15W35W
Yearly Running Cost$2.74$6.39
OtherIntel UHD Graphics
First Seen on ChartQ2 2020Q2 2012
# of Samples722413
CPU Value14.623.5
Single Thread Rating(% diff. to max in group)1371(-21.2%)1740(0.0%)
CPU Mark(% diff. to max in group)2351(-18.0%)2867(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of December 2024 - Higher results represent better performance
Intel Pentium 6405U @ 2.40GHz
2,351
Intel Core i7-3520M @ 2.90GHz
2,867
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 22nd of December 2024 - Higher results represent better value
Intel Pentium 6405U @ 2.40GHz
14.6
Intel Core i7-3520M @ 2.90GHz
23.5
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 22nd of December 2024 - Higher results represent better performance
Intel Pentium 6405U @ 2.40GHz
1,371
Intel Core i7-3520M @ 2.90GHz
1,740
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 6405U @ 2.40GHz Intel Core i7-3520M @ 2.90GHz
Max TDP15W35W
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.