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Intel U300 vs i5-8500B

The Intel U300 is newer than Intel Core i5-8500B @ 3.00GHz is around 22% faster in single-thread testing. Also, Intel U300 uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 291 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 U300×Intel Core i5-8500B @ 3.00GHz+ ADD
Price Search Online Search Online
Socket TypeFCBGA1744FCBGA1440
CPU ClassLaptopLaptop
ClockspeedNA23.0 GHz
Turbo SpeedUp to 4.4 GHzUp to 4.1 GHz
# of Physical Cores5 (Threads: 6)6 (Threads: 6)
CacheL1: 464KB, L2: 3.3MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 9MB
TDP15W65W
Yearly Running Cost$2.74$11.86
OtherIntel UHD Graphics for 13th Gen Intel ProcessorsIntel UHD Graphics 630
First Seen on ChartQ3 2023Q1 2019
# of Samples64227
CPU Rank17081683
CPU Value44.546.2
Single Thread Rating(% diff. to max in group)3096(0.0%)2535(-18.1%)
CPU Mark(% diff. to max in group)8597(-3.1%)8870(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 12th of February 2026 - Higher results represent better performance
Intel U300
8,597
Intel Core i5-8500B @ 3.00GHz
8,870
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 12th of February 2026 - Higher results represent better value
Intel U300
44.5
Intel Core i5-8500B @ 3.00GHz
46.2
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 12th of February 2026 - Higher results represent better performance
Intel U300
3,096
Intel Core i5-8500B @ 3.00GHz
2,535
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 U300 Intel Core i5-8500B @ 3.00GHz
Max TDP15W65W
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.