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Will upgrading my CPU decrease battery life?
Hello, me again.
I have a question that I can't seem to find an answer to. I have a Latitude E6520 that I'm highly debating upgrading the CPU in. I'd like to go with an quad-core i7-2720qm, since it should be a notable difference over my wimpy dual-core i5-2520m. It's a confirmed fit (optional in the E6520) and it's also pretty cheap, since there's apparently no market for 10 year old notebook CPUs.
Anyway, in doing this is it possible I might see a drop in battery life during low effort tasks, like browsing or writing in Word?
The i5 is 2.50 GHz and the i7 is 2.40 GHz, so essentially the same there.
But, the i5 is rated at 35 watts, whereas the i7 is rated at 45 watts. Though I'm assuming this is at much higher loads.
I'm thinking it shouldn't affect my (currently great) battery life, but I'd like to be sure.
Thanks for putting up with me and my newb questions!
Muhammad Humzah Soomro
1 Rookie
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3 Posts
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Posted August 18th, 2022 08:00
Dear,
I am confident enough that you would be draining more power. Offcourse, you would be having a decrease in battery timing too due to high performance CPU which is a quad core CPU marketed by Intel as qm. While the your i5 CPU was of U series which means produced for low voltage laptos for long battery life.
Upgrading is a great option but if you are asking for this, then definitely you have to lose battery life at the cost of high performance.
Have a Good Day!
U2CAMEB4ME
6 Operator
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6245 Posts
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Posted August 18th, 2022 01:00
Welcome to the Dell Community @GRU04
Yes, there will be a slight drop but it should be hardly noticeable.
Your fastest CPU would be the i7-2860QM.
https://www.cpu-upgrade.com/CPUs/Intel/Core_i5_Mobile/i5-2520M_(PGA).html
You could recoup the loss by replacing an old HDD with a new power saving SSD.
You could use DDR3L instead of the DDR3 installed.
Then you also have the option of an extended main battery, media bay battery and a slice battery.
Best regards,
U2