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The most economical SSDs for notebooks, what is the consumption during the runtime? Which SSD is best?

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The most economical SSDs for notebooks, what is the consumption during the runtime?  Which SSD is best?

In a normal desktop PC, the power consumption of an SSD is practically irrelevant. However, the world can look completely different in a notebook. Here +- 1-2W can have a noticeable effect on the runtime.

Especially if you have an “ultrabook” that is optimized for a particularly long runtime.

But which is the best SSD if you’re looking for maximum battery life? How big are the differences in practice here? Let’s find out in a little practical test!

The SSDs in comparison

I am sending the following SSDs into the comparison here:

Corsair MP600XT
Crucial P3
Crucial P5 Plus
Intel 600p
Kingston NV2
Lexar NM790
Samsung 980
Samsung 990 Pro
SK Hynix P31
SK Hynix P41

The Intel 600p and the OCZ RD400 are older SSDs that I included in this comparison simply out of curiosity.

Otherwise, I am particularly excited about the performance of the SK Hynix models, which are considered very economical.

The test setup

In all SSD tests on breaking.org you will find an assessment of the power consumption. However, I create this by measuring the power consumption in an external housing, so it is only semi-accurate.

In this test I’ll try a more practical setup. This is how I test all SSDs in a Dell XPS 13.

With the Dell XPS 13, I disconnect the battery and measure the power consumption via USB-C and log it over a certain period of time.

I measure the power consumption during the installation of Windows 11, as well as the idle power consumption of a fresh Windows installation without internet.

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The latter so that Windows cannot load any updates in the background or there are additional variables.

The Dell XPS 13 is the Dell

Power consumption of the SSDs under load

Let’s start with the measurements during the installation of Windows 11.

Exciting! The KIOXIA EXCERIA Plus G3 is the most economical SSD, followed by the Crucial P3 and the Lexar NM790. The SK Hynix P31 comes in 4th place.

On the other hand, we have the OCZ RD400 as the most power hungry SSD. This doesn’t surprise me, because I also knew that the SSD was very hot, which is often accompanied by a corresponding power consumption.

I was a little more surprised by the poor performance of the Samsung 990 Pro.

SSD power consumption when idle

But what does it look like when idling?

Here we see a very similar picture. Once again, the KIOXIA EXCERIA Plus G3 is the most economical SSD. The Samsung 980, SK Hynix P31, Crucial P3, SK Hynix P41 and Lexar NM790 follow practically on a par.

With all of these SSDs, the XPS 13 averaged under 6W when idle.

On the other hand, we have the Kingston NV2, Samsung 990 Pro and Corsair MP600XT. To be honest, I can’t quite explain the poor performance of the Kingston NV2 and 990 Pro.

For the NV2, I also tested two different models (500GB and 1TB) just to be sure. But the result was +- the same for both.

What does this mean for battery life?

But what does all this mean for battery life? We can easily calculate this. The XPS 13 has a 52 Wh battery, which we can use to calculate the running time.

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In the worst case, there is a whopping 2 hours of runtime between the “best” and worst SSD. Accordingly, we can say that an SSD has a significant influence on the runtime.


An SSD can have a significant impact on the battery life of notebooks, at least for particularly light and compact notebooks.

Which SSDs would I recommend here?

The KIOXIA offers a very good balance of solid performance and the lowest power consumption in the test.

Accordingly, I would recommend the KIOXIA EXCERIA Plus G3 with a clear conscience. Alternatively, I would recommend the Lexar NM790 and possibly the Crucial P3. But the latter is a bit slower.

Do you say “but I want a high-end SSD and low power consumption”. Then I would recommend the SK Hynix P41.

The P31 would also be a good option in itself, but compared to the EXCERIA Plus G3 it is just a bit too expensive for me.

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