MacBook Air - 7 Core vs 8 Core GPU Weight

[Chairman.Jobbie]

I weighed a 7 core MBA M1 = 1281g
I weighed a 8 core MBA M1 = 1291g

I weighed multiple times and got same result. So 1 core = 10g?

Thats all.

 

[jasperj8]

that's kind of heavy considering the actual size of a GPU core

 

[coot]

Was one drive fuller than the other?

 

[Tenkaykev]

The 8 core has the thermal sponge that connects the heatsink to the case. I’m sure it’s Not fitted to the 7 core, possibly to differentiate between the models benchmark performance.
The M1 heat pad mod discussed in another forum rectifies this and gives the 7 core the equivalent performance to the M1 Pro

 

[Chairman.Jobbie]

Was one drive fuller than the other?

Yeah, the 7 core had 80gb more data on the drive Both have 16Gb Ram and 512 SSD.

 

[Tenkaykev]

Yeah, the 7 core had 80gb more data on the drive Both have 16Gb Ram and 512 SSD.

Thats it! all those extra electrons 🤔😉

 

[richard371]

The 8 core is the same as the 7 core. The 7 core just has 1 GPU disabled. The weight should be the same.

 

[Chairman.Jobbie]

The 8 core is the same as the 7 core. The 7 core just has 1 GPU disabled. The weight should be the same.

Should be, but aren't.

 

[Chairman.Jobbie]

Thats it! all those extra electrons 🤔😉

But the extra 'electrons' are on the 7 core... and that is lighter, or I don't know enough about electrons.

 

[deeddawg]

But the extra 'electrons' are on the 7 core... and that is lighter, or I don't know enough about electrons.

Maybe one battery's more charged than the other...

All that potential energy...

 

[Tenkaykev]

But the extra 'electrons' are on the 7 core... and that is lighter, or I don't know enough about electrons.

I think they disabled the 8th GPU core by fusing the track so the electrons can't gain access. Another possibility is that the screen on the 7 core had the brightness setting turned up allowing more photons to escape and lowering the overall mass.

 

[richard371]

But the extra 'electrons' are on the 7 core... and that is lighter, or I don't know enough about electrons.

They are very heavy. We have lots of workers comp cases for people hurting their backs lugging around extra electrons.

 

[Chairman.Jobbie]

I think they disabled the 8th GPU core by fusing the track so the electrons can't gain access. Another possibility is that the screen on the 7 core had the brightness setting turned up allowing more photons to escape and lowering the overall mass.

They were both weighed closed.

 

[dmccloud]

Should be, but aren't.

You're talking about 10g difference in weight - that could be due to a difference in the amount of cooling paste used between the CPU and heatsink. It's really nothing to even be concerned about.

 

[KarimLeVallois]

It’s the silicon insulating foam in the higher spec one.

 

[xraydoc]

You're talking about 10g difference in weight - that could be due to a difference in the amount of cooling paste used between the CPU and heatsink. It's really nothing to even be concerned about.

10 grams of cooling paste? I very seriously doubt that.

 

[haralds]

The SoC is the same. The 7 core are rejected 8 core with a failure in one of the GPU. It's called binning. The rejected core is disabled after test with a fusible link.

 

[Chairman.Jobbie]

You're talking about 10g difference in weight - that could be due to a difference in the amount of cooling paste used between the CPU and heatsink. It's really nothing to even be concerned about.

It was just an observation / interesting - not concerned. I had both briefly.

Now only have 7 core, 10g grams less weight was too much to give up as I have it on my lap for 8+ hours a day, my legs thank me for it 😜

 

[Veeper]

Was one drive fuller than the other?

Wait until bits start leaking out of the USB ports.😂

 

[flopticalcube]

Sample variance.

 

[jdb8167]

Sample variance.

Nah, there really is a piece of heat absorbing foam sponge in the 8 GPU core Airs.

 

[MBAir2010]

what color? the space grey model might have an extra coating compared to the silver.

 

[Chairman.Jobbie]

what color? the space grey model might have an extra coating compared to the silver.

Both space grey.

 

[motulist]

Both space grey.

How about ram and hd? Having a few extra chips could possibly add up to a few grams.

 

[Chairman.Jobbie]

Yeah, the 7 core had 80gb more data on the drive Both have 16Gb Ram and 512 SSD.