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Intel i5-4350U vs i5-3340M

The Intel Core i5-3340M @ 2.70GHz is newer than Intel Core i5-4350U @ 1.40GHz and is around 11% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core i5-4350U @ 1.40GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 1164 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 i5-4350U @ 1.40GHz×Intel Core i5-3340M @ 2.70GHz+ ADD
Price Search Online Search Online
Socket TypeBGA1168BGA1023
CPU ClassLaptopLaptop
Clockspeed1.4 GHz2.7 GHz
Turbo SpeedUp to 2.9 GHzUp to 3.4 GHz
# of Physical Cores2 (Threads: 4)2 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 3MBL1: 128KB, L2: 0.5MB, L3: 3MB
TDP15W35W
Yearly Running Cost$2.74$6.39
Other
First Seen on ChartQ1 2013Q1 2013
# of Samples41160
CPU Value0.025.7
Single Thread Rating(% diff. to max in group)1585(-4.3%)1656(0.0%)
CPU Mark(% diff. to max in group)2425(-10.1%)2696(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Core i5-4350U @ 1.40GHz
2,425
Intel Core i5-3340M @ 2.70GHz
2,696
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 24th of April 2025 - Higher results represent better value
Intel Core i5-4350U @ 1.40GHz
NA
Intel Core i5-3340M @ 2.70GHz
25.7
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Core i5-4350U @ 1.40GHz
1,585
Intel Core i5-3340M @ 2.70GHz
1,656
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 i5-4350U @ 1.40GHz Intel Core i5-3340M @ 2.70GHz
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.