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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i7-840QM vs i5-2450M

The Intel Core i5-2450M @ 2.50GHz is newer than Intel Core i7-840QM @ 1.87GHz also around 6% faster in multi-threaded (CPU Mark) testing, it is around 11% faster in single-thread testing. However, Intel Core i7-840QM @ 1.87GHz 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 4815 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 i7-840QM @ 1.87GHz×Intel Core i5-2450M @ 2.50GHz+ ADD
Price Search Online Search Online
Socket TypePGA988ABGA1023
CPU ClassLaptopLaptop
Clockspeed1.9 GHz2.5 GHz
Turbo SpeedUp to 3.2 GHzUp to 3.1 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 ChartQ3 2010Q4 2011
# of Samples2384577
CPU Value23.028.1
Single Thread Rating(% diff. to max in group)1138(-11.5%)1286(0.0%)
CPU Mark(% diff. to max in group)1952(-6.2%)2082(0.0%)
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 i7-840QM @ 1.87GHz
1,952
Intel Core i5-2450M @ 2.50GHz
2,082
CPU Value (CPU Mark / $Price)
As of 8th of January 2025 - Higher results represent better value
Intel Core i7-840QM @ 1.87GHz
23.0
Intel Core i5-2450M @ 2.50GHz
28.1
CPU Single Thread Rating
As of 8th of January 2025 - Higher results represent better performance
Intel Core i7-840QM @ 1.87GHz
1,138
Intel Core i5-2450M @ 2.50GHz
1,286
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 i7-840QM @ 1.87GHz Intel Core i5-2450M @ 2.50GHz
Max TDP45W35W
Power consumption per day (kWh)0.090.07
Running cost per day$0.022$0.018
Power consumption per year (kWh)32.925.6
Running cost per year$8.21$6.39
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.