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AMD A8-3870K APU vs Intel i3-3240

The Intel Core i3-3240 @ 3.40GHz is newer than AMD A8-3870K APU is around 45% faster in single-thread testing. Also, Intel Core i3-3240 @ 3.40GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 2714 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.

×AMD A8-3870K APU×Intel Core i3-3240 @ 3.40GHz+ ADD
Price Search Online Search Online
Socket TypeFM1LGA1155
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.4 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)2 (Threads: 4)
CacheL1: 512KB, L2: 4.0MB, L1: 128KB, L2: 0.5MB, L3: 3MB
TDP100W55W
Yearly Running Cost$18.25$10.04
Other
First Seen on ChartQ4 2011Q1 2012
# of Samples6132101
CPU Rank33793392
CPU Value10.157.4
Single Thread Rating(% diff. to max in group)1221(-31.1%)1774(0.0%)
CPU Mark(% diff. to max in group)2370(0.0%)2353(-0.7%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 8th of March 2026 - Higher results represent better performance
AMD A8-3870K APU
2,370
Intel Core i3-3240 @ 3.40GHz
2,353
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 8th of March 2026 - Higher results represent better value
AMD A8-3870K APU
10.1
Intel Core i3-3240 @ 3.40GHz
57.4
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 8th of March 2026 - Higher results represent better performance
AMD A8-3870K APU
1,221
Intel Core i3-3240 @ 3.40GHz
1,774
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.
AMD A8-3870K APU Intel Core i3-3240 @ 3.40GHz
Max TDP100W55W
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.