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AMD Phenom II X4 B55 vs Intel i5-660

The AMD Phenom II X4 B55 is newer than Intel Core i5-660 @ 3.33GHz and is around 8% faster in multi-threaded (CPU Mark) testing. The AMD Phenom II X4 B55 is around -7% slower in single-thread testing. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 956 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 Phenom II X4 B55×Intel Core i5-660 @ 3.33GHz+ ADD
Price Search Online Search Online
Socket TypeAM2+/AM3LGA1156
CPU ClassDesktopDesktop
Clockspeed3.3 GHz3.3 GHz
Turbo SpeedNot SupportedUp to 3.6 GHz
# of Physical Cores4 (Threads: 4)2 (Threads: 4)
CacheL1: 512KB, L2: 2.0MB, L3: 6MBL1: 128KB, L2: 0.5MB, L3: 4MB
TDPNA273W
Yearly Running CostNA$13.32
Other
First Seen on ChartQ1 2010Q4 2009
# of Samples552404
CPU Rank32373361
CPU Value0.016.0
Single Thread Rating(% diff. to max in group)1330(-6.9%)1428(0.0%)
CPU Mark(% diff. to max in group)2594(0.0%)2397(-7.6%)
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 March 2026 - Higher results represent better performance
AMD Phenom II X4 B55
2,594
Intel Core i5-660 @ 3.33GHz
2,397
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 7th of March 2026 - Higher results represent better value
AMD Phenom II X4 B55
NA
Intel Core i5-660 @ 3.33GHz
16.0
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 7th of March 2026 - Higher results represent better performance
AMD Phenom II X4 B55
1,330
Intel Core i5-660 @ 3.33GHz
1,428
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 Phenom II X4 B55 Intel Core i5-660 @ 3.33GHz
Max TDPNA73W
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.