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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core i5-655K @ 3.20GHz vs Intel Pentium G3420 @ 3.20GHz vs Intel Core2 Quad Q9400 @ 2.66GHz

The values for the CPUs below are determined from thousands of PerformanceTest benchmark results and are updated daily.

  • 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 Pentium G3420 @ 3.20GHz×Intel Core2 Quad Q9400 @ 2.66GHz+ ADD
Price Search Online Search Online Search Online
Socket TypeLGA1156FCLGA1150LGA775
CPU ClassDesktopDesktopDesktop
Clockspeed3.2 GHz3.2 GHz2.7 GHz
Turbo SpeedUp to 3.5 GHzNot SupportedNot Supported
# of Physical Cores2 (Threads: 4)2 (Threads: 2)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 4MBL1: 128KB, L2: 0.5MB, L3: 3MBL1: 256KB, L2: 6.0MB, L3: 0MB
TDP73W54W95W
Yearly Running Cost$13.32$9.86$17.34
Other
First Seen on ChartQ2 2010Q3 2013Q4 2008
# of Samples465762441
CPU Value26.234.455.6
Single Thread Rating(% diff. to max in group)1446(-17.5%)1753(0.0%)1137(-35.1%)
CPU Mark(% diff. to max in group)2017(-4.6%)1933(-8.6%)2114(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 11th of May 2024 - Higher results represent better performance
Intel Core i5-655K @ 3.20GHz
2,017
Intel Pentium G3420 @ 3.20GHz
1,933
Intel Core2 Quad Q9400 @ 2.66GHz
2,114
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 11th of May 2024 - Higher results represent better value
Intel Core i5-655K @ 3.20GHz
26.2
Intel Pentium G3420 @ 3.20GHz
34.4
Intel Core2 Quad Q9400 @ 2.66GHz
55.6
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 11th of May 2024 - Higher results represent better performance
Intel Core i5-655K @ 3.20GHz
1,446
Intel Pentium G3420 @ 3.20GHz
1,753
Intel Core2 Quad Q9400 @ 2.66GHz
1,137
PassMark Software © 2008-2024

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
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 @ 3.20GHzIntel Pentium G3420 @ 3.20GHzIntel Core2 Quad Q9400 @ 2.66GHz
Max TDP73W54W95W
Power consumption per day (kWh)NANANA
Running cost per dayNANANA
Power consumption per year (kWh)NANANA
Running cost per yearNANANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.