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Intel i7-820QM vs i5-520M

The Intel Core i5-520M @ 2.40GHz is newer than Intel Core i7-820QM @ 1.73GHz, while the multi-threaded (CPU Mark) is simliar, Intel Core i5-520M @ 2.40GHz is around 7% faster in single-thread testing. However, Intel Core i7-820QM @ 1.73GHz uses around 25% more power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 3486 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 i7-820QM @ 1.73GHz×Intel Core i5-520M @ 2.40GHz+ ADD
Price Search Online Search Online
Socket TypePGA988ABGA1288
CPU ClassLaptopLaptop
Clockspeed1.7 GHz2.4 GHz
Turbo SpeedUp to 3.1 GHzUp to 2.9 GHz
# of Physical Cores4 (Threads: 8)2 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 128KB, L2: 0.5MB, L3: 3MB
TDP45W35W
Yearly Running Cost$8.21$6.39
Other
First Seen on ChartQ4 2009Q1 2010
# of Samples4323054
CPU Value13.817.2
Single Thread Rating(% diff. to max in group)1017(-7.0%)1093(0.0%)
CPU Mark(% diff. to max in group)1781(0.0%)1723(-3.3%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 8th of January 2025 - Higher results represent better performance
Intel Core i7-820QM @ 1.73GHz
1,781
Intel Core i5-520M @ 2.40GHz
1,723
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 8th of January 2025 - Higher results represent better value
Intel Core i7-820QM @ 1.73GHz
13.8
Intel Core i5-520M @ 2.40GHz
17.2
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 8th of January 2025 - Higher results represent better performance
Intel Core i7-820QM @ 1.73GHz
1,017
Intel Core i5-520M @ 2.40GHz
1,093
PassMark Software © 2008-2025
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 i7-820QM @ 1.73GHz Intel Core i5-520M @ 2.40GHz
Max TDP45W35W
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.