I ran all links below with Google Chrome Tools enabled, no cache. Switched to mobile view to make sure that AMP pages are loaded. Cache disabled to see the actual weight of the page.
So, AMP is worse when served from Google. And on par with non-AMP version
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The New Yorker AMP: 129 requests (and they keep coming). 796 KB transferred. 1.9 MB resources
The New Yorker AMP not served from Google [3]: 70 requests (and they keep coming). 745 KB transferred. 1.5 MB resources
The New Yorker non-AMP page[4]: 245 requests (and they keep coming). 8.2 MB transferred. 13 MB resources.
So. The only example where the AMP page is significantly better than the non-AMP pages.
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But the page weight is already accounted for in Google Search algorithms, and The New Yorker page should have been deprioritised from search. It's not, it's in the carousel, it will redirect to the 13MB version on desktop. Meanwhile, as Vox, and USA Today and many many many others show, the regular properly made website will not differ significantly from AMP versions.
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USA Today AMP page: 45 requests. 755 KB transferred. 1.6 MB resource
USA Today EU Experience: 10 requests. 209 KB transferred. 251 KB resources.
AMP version is significantly worse for essentially the same content (AMP version and EU version are nearly identical)
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VOX AMP: 37 requests. 575 KB transferred. 1.4 MB resources.
VOX AMP not served from Google [1]: 22 requests. 403 KB transferred. 935 KB resources.
VOX non-AMP [2]: 19 requests. 627 KB transferred. 1.3 MB resources
So, AMP is worse when served from Google. And on par with non-AMP version
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The New Yorker AMP: 129 requests (and they keep coming). 796 KB transferred. 1.9 MB resources
The New Yorker AMP not served from Google [3]: 70 requests (and they keep coming). 745 KB transferred. 1.5 MB resources
The New Yorker non-AMP page[4]: 245 requests (and they keep coming). 8.2 MB transferred. 13 MB resources.
So. The only example where the AMP page is significantly better than the non-AMP pages.
---
But the page weight is already accounted for in Google Search algorithms, and The New Yorker page should have been deprioritised from search. It's not, it's in the carousel, it will redirect to the 13MB version on desktop. Meanwhile, as Vox, and USA Today and many many many others show, the regular properly made website will not differ significantly from AMP versions.
[1] https://www.vox.com/platform/amp/policy-and-politics/2019/4/...
[2] https://www.vox.com/policy-and-politics/2019/4/10/18305175/t...
[3] https://www.newyorker.com/news/current/william-barr-goes-ful...
[4] https://www.newyorker.com/news/current/william-barr-goes-ful...