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Intel i5-661 vs AMD Phenom II X4 820

The Intel Core i5-661 @ 3.33GHz is newer than AMD Phenom II X4 820 also around 15% faster in multi-threaded (CPU Mark) testing, it is around 22% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 420 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 i5-661 @ 3.33GHz×AMD Phenom II X4 820+ ADD
Price Search Online Search Online
Socket TypeLGA1156AM3
CPU ClassDesktopDesktop
Clockspeed3.3 GHz2.8 GHz
Turbo SpeedUp to 3.6 GHzNot Supported
# of Physical Cores2 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 4MBL1: 512KB, L2: 2.0MB, L3: 4MB
TDP87W95W
Yearly Running Cost$15.88$17.34
Other
First Seen on ChartQ1 2010Q4 2009
# of Samples191229
CPU Value30.933.8
Single Thread Rating(% diff. to max in group)1446(0.0%)1121(-22.5%)
CPU Mark(% diff. to max in group)2469(0.0%)2096(-15.1%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 21st of August 2024 - Higher results represent better performance
Intel Core i5-661 @ 3.33GHz
2,469
AMD Phenom II X4 820
2,096
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 21st of August 2024 - Higher results represent better value
Intel Core i5-661 @ 3.33GHz
30.9
AMD Phenom II X4 820
33.8
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of August 2024 - Higher results represent better performance
Intel Core i5-661 @ 3.33GHz
1,446
AMD Phenom II X4 820
1,121
PassMark Software © 2008-2024
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 i5-661 @ 3.33GHz AMD Phenom II X4 820
Max TDP87W95W
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.