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Intel i5-655K vs i5-661

The Intel Core i5-655K @ 3.20GHz is newer than Intel Core i5-661 @ 3.33GHz and is around -15% slower in multi-threaded (CPU Mark) testing. However the CPUs have comparable single-thread rating. Also, Intel Core i5-661 @ 3.33GHz uses around 18% more power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 257 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 i5-655K @ 3.20GHz×Intel Core i5-661 @ 3.33GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1156LGA1156
CPU ClassDesktopDesktop
Clockspeed3.2 GHz3.3 GHz
Turbo SpeedUp to 3.5 GHzUp to 3.6 GHz
# of Physical Cores2 (Threads: 4)2 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 4MBL1: 256KB, L2: 1.0MB, L3: 4MB
TDP73W87W
Yearly Running Cost$13.32$15.88
Other
First Seen on ChartQ2 2010Q1 2010
# of Samples46211
CPU Value26.229.8
Single Thread Rating(% diff. to max in group)1446(0.0%)1382(-4.4%)
CPU Mark(% diff. to max in group)2017(-15.5%)2387(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of December 2025 - Higher results represent better performance
Intel Core i5-655K @ 3.20GHz
2,017
Intel Core i5-661 @ 3.33GHz
2,387
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 6th of December 2025 - Higher results represent better value
Intel Core i5-655K @ 3.20GHz
26.2
Intel Core i5-661 @ 3.33GHz
29.8
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 6th of December 2025 - Higher results represent better performance
Intel Core i5-655K @ 3.20GHz
1,446
Intel Core i5-661 @ 3.33GHz
1,382
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 i5-655K @ 3.20GHz Intel Core i5-661 @ 3.33GHz
Max TDP73W87W
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.