CPU Performance Comparison

Performance of selected CPUs can be found below. The values for the CPU are determined from thousands of PerformanceTest benchmark results and is updated daily.

	AMD Phenom II X4 B55	Intel Core i5-661 @ 3.33GHz
Price	Search Online	$99.99¹
Socket Type	AM2+/AM3	LGA1156
CPU Class	Desktop	Desktop
Clockspeed	3.3 GHz	3.3 GHz
Turbo Speed	Not Supported	Up to 3.6 GHz
# of Physical Cores	4	2 (2 logical cores per physical)
Max TDP	NA²	87W
Yearly Running Cost	NA	$15.88
First Seen on Chart	Q1 2010	Q1 2010
# of Samples	505	144
Single Thread Rating	1111	1337
CPU Mark	3855	3186

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 21st of July 2019 - Higher results represent better performance
AMD Phenom II X4 B55	3,855
Intel Core i5-661 @ 3.33GHz	3,186
Intel Core i9-9900K @ 3.60GHz	20,222
AMD Ryzen 7 2700X	16,973
Intel Core i7-8700K @ 3.70GHz	15,960
Intel Core i7-8700 @ 3.20GHz	15,160
AMD Ryzen 7 1700X	14,680
PassMark Software © 2008-2019

CPU Value (CPU Mark / $Price)
As of 21st of July 2019 - Higher results represent better value
AMD Phenom II X4 B55	NA
Intel Core i5-661 @ 3.33GHz	31.86
Intel Core i9-9900K @ 3.60GHz	41.70
AMD Ryzen 7 2700X	67.38
Intel Core i7-8700K @ 3.70GHz	45.60
Intel Core i7-8700 @ 3.20GHz	55.51
AMD Ryzen 7 1700X	89.52
PassMark Software © 2008-2019

CPU Single Thread Rating
As of 21st of July 2019 - Higher results represent better performance
AMD Phenom II X4 B55	1,111
Intel Core i5-661 @ 3.33GHz	1,337
Intel Core i9-9900K @ 3.60GHz	2,898
AMD Ryzen 7 2700X	2,192
Intel Core i7-8700K @ 3.70GHz	2,701
Intel Core i7-8700 @ 3.20GHz	2,630
AMD Ryzen 7 1700X	1,881
PassMark Software © 2008-2019

Show other common CPUs in charts

Estimated Energy Usage Cost

Estimated Energy Adjustable Values
Average hours of use per day
Average CPU Utilization (0-100%)¹
Power 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.

	AMD Phenom II X4 B55	Intel Core i5-661 @ 3.33GHz
Max TDP	NA	87W
Power consumption per day (kWh)	abc	abc
Running cost per day	abc	abc
Power consumption per year (kWh)	abc	abc
Running cost per year	abc	abc

Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.

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