Accurate Battery Benchmark?

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EppNation

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Jan 23, 2015
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I am between 2 different mSATA SSD's for my laptop (Toshiba U845W-S4180) specifically for their power consumption rates.

Samsung 850 EVO 250GB
Power Consumption (Idle) 50mW
Power Consumption (Active) Read: 3.5W Write: 4.3W

and

Intel 530 240GB
Power - Idle 55 mW
Power - Active 140 mW


Aside from keeping a notepad while doing various tasks jotting down percentages as I go, is there such a utility that would be of use for me?
 
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laviniuc

laviniuc

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Nov 29, 2013
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i don't think the differences can be as big as stated above, (if that's correct the power draw for the intel one would be 30-40 times lower, that can't be) most likely one of them are giving some average power draw as maximum,

in practice you will notice a small battery time increase whenever you move from the hdd to a ssd but the difference although big in power draw for the storage it makes a small difference in the overall power consumption for the whole laptop, (you're gonna win maybe 10-20 minutes at a 2h battery life). it's not the storage using a lot of power, it's always the screen, graphics, cpu using most of the battery
 
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EppNation

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Jan 23, 2015
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EppNation

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Jan 23, 2015
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The differences truly are that big (at least according to their makers), that's what intrigued me. My ultrabook was crashing so fast, I was literally racing it to amazon to purchase a new mSATA SSD, I bought one with a trustworthy name, high reviews, and new release sale price. The Samsung 850 EVO.

I have since bought the Intel, it's in transit now, I want to determine which will actually suit me needs better. I would rather have longer battery life of machine in exchange for a little speed. How big THESE differences will be, is what I am to find out.
 
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laviniuc

laviniuc

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Nov 29, 2013
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"Active Power indicates typical power consumption of the device when operating." from intel's site. which pretty much means they measured it by holding the finger on the wind.
http://www.anandtech.com/bench/SSD/307

as you can see on the above list, the differences are much, much smaller in power consumtion. even if they were 10x differences, the average laptop draws about 50W running at full speed and lower when running on battery. any ssd would be under 10% off that so even if you drop it completely you're still looking at improving battery life by AT MOST 10%. it's better to use an ssd draws at least half the power compared to hdd-s but in the long run - considering it's a small part of the total power draw the difference isn't as big as you hope.
 
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