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.

	Intel Core i7-6800K @ 3.40GHz	Intel Core i7-6700K @ 4.00GHz
Price	$458¹	$446.79¹
Socket Type	LGA2011-v3	LGA1151
CPU Class	Desktop	Desktop
Clockspeed	3.4 GHz	4.0 GHz
Turbo Speed	Up to 3.8 GHz	Up to 4.2 GHz
# of Physical Cores	6 (2 logical cores per physical)	4 (2 logical cores per physical)
Max TDP	140W	95W
Yearly Running Cost	$25.55	$17.34
First Seen on Chart	Q2 2016	Q2 2015
# of Samples	1233	11429
Single Thread Rating	2064	2353
CPU Mark	13582	11109

¹ - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 20th of March 2019 - Higher results represent better performance
Intel Core i7-6800K @ 3.40GHz	13,582
Intel Core i7-6700K @ 4.00GHz	11,109
AMD Ryzen 7 2700X	16,990
Intel Core i7-8700K @ 3.70GHz	15,968
Intel Core i7-8700 @ 3.20GHz	15,141
AMD Ryzen 7 1700	13,754
AMD Ryzen 5 2600	13,551
PassMark Software © 2008-2019

CPU Value (CPU Mark / $Price)
As of 20th of March 2019 - Higher results represent better value
Intel Core i7-6800K @ 3.40GHz	29.66
Intel Core i7-6700K @ 4.00GHz	24.87
AMD Ryzen 7 2700X	54.81
Intel Core i7-8700K @ 3.70GHz	42.02
Intel Core i7-8700 @ 3.20GHz	48.07
AMD Ryzen 7 1700	85.97
AMD Ryzen 5 2600	82.13
PassMark Software © 2008-2019

CPU Single Thread Rating
As of 20th of March 2019 - Higher results represent better performance
Intel Core i7-6800K @ 3.40GHz	2,064
Intel Core i7-6700K @ 4.00GHz	2,353
AMD Ryzen 7 2700X	2,194
Intel Core i7-8700K @ 3.70GHz	2,703
Intel Core i7-8700 @ 3.20GHz	2,630
AMD Ryzen 7 1700	1,775
AMD Ryzen 5 2600	2,007
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.

	Intel Core i7-6800K @ 3.40GHz	Intel Core i7-6700K @ 4.00GHz
Max TDP	140W	95W
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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