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 Xeon E5645 @ 2.40GHz	Intel Xeon X5660 @ 2.80GHz
Price	$107.98¹	$24.24¹
Socket Type	LGA1366	LGA1366
CPU Class	Server	Server
Clockspeed	2.4 GHz	2.8 GHz
Turbo Speed	Up to 2.7 GHz	Up to 3.2 GHz
# of Physical Cores	6 (2 logical cores per physical)	6 (2 logical cores per physical)
Max TDP	80W	95W
Yearly Running Cost	$14.60	$17.34
First Seen on Chart	Q2 2011	Q2 2010
# of Samples	49	127
Single Thread Rating	1097	1275
CPU Mark	6424	7569

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

CPU Mark Rating
As of 22nd of August 2019 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz	6,424
Intel Xeon X5660 @ 2.80GHz	7,569
Intel Core i9-9900K @ 3.60GHz	20,223
AMD Ryzen 7 2700X	16,960
Intel Core i7-8700K @ 3.70GHz	15,963
Intel Core i7-8700 @ 3.20GHz	15,160
AMD Ryzen 7 1700X	14,682
PassMark Software © 2008-2019

CPU Value (CPU Mark / $Price)
As of 22nd of August 2019 - Higher results represent better value
Intel Xeon E5645 @ 2.40GHz	59.49
Intel Xeon X5660 @ 2.80GHz	312.28
Intel Core i9-9900K @ 3.60GHz	40.86
AMD Ryzen 7 2700X	70.70
Intel Core i7-8700K @ 3.70GHz	45.61
Intel Core i7-8700 @ 3.20GHz	44.85
AMD Ryzen 7 1700X	89.55
PassMark Software © 2008-2019

CPU Single Thread Rating
As of 22nd of August 2019 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz	1,097
Intel Xeon X5660 @ 2.80GHz	1,275
Intel Core i9-9900K @ 3.60GHz	2,898
AMD Ryzen 7 2700X	2,190
Intel Core i7-8700K @ 3.70GHz	2,701
Intel Core i7-8700 @ 3.20GHz	2,631
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.

	Intel Xeon E5645 @ 2.40GHz	Intel Xeon X5660 @ 2.80GHz
Max TDP	80W	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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