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Intel i3-8121U vs i5-7442EQ

The Intel Core i5-7442EQ @ 2.10GHz is newer than Intel Core i3-8121U @ 2.20GHz and is around 13% faster in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core i5-7442EQ @ 2.10GHz uses around 50% more power. All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 39 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 i3-8121U @ 2.20GHz×Intel Core i5-7442EQ @ 2.10GHz+ ADD
Price Search Online Search Online
Socket TypeNA2FCBGA1440
CPU ClassLaptopLaptop
Clockspeed2.2 GHz2.1 GHz
Turbo SpeedUp to 3.2 GHzUp to 2.9 GHz
# of Physical Cores2 (Threads: 4)4 (Threads: 4)
CacheL1: 128KB, L2: 0.5MB, L3: 4MBL1: 256KB, L2: 1.0MB, L3: 6MB
TDP15W25W
Yearly Running Cost$2.74$4.56
OtherIntel HD Graphics 630
First Seen on ChartQ4 2018Q1 2019
# of Samples363
CPU Rank25322402
CPU Value14.719.3
Single Thread Rating(% diff. to max in group)1896(0.0%)1819(-4.0%)
CPU Mark(% diff. to max in group)4271(-11.6%)4834(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
2 - Information not available. Do you know? Notify Us.

CPU Mark Rating
As of 7th of February 2026 - Higher results represent better performance
Intel Core i3-8121U @ 2.20GHz
4,271
Intel Core i5-7442EQ @ 2.10GHz
4,834
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 7th of February 2026 - Higher results represent better value
Intel Core i3-8121U @ 2.20GHz
14.7
Intel Core i5-7442EQ @ 2.10GHz
19.3
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 7th of February 2026 - Higher results represent better performance
Intel Core i3-8121U @ 2.20GHz
1,896
Intel Core i5-7442EQ @ 2.10GHz
1,819
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 i3-8121U @ 2.20GHz Intel Core i5-7442EQ @ 2.10GHz
Max TDP15W25W
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.