this post was submitted on 06 May 2025
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what about the X line? particularly the x250 and x260? been thinking on getting one of those for a while because of their compact size
I'm referring to semi-modern laptops you're most likely to get out of some corporation's dump of obsolete tech, but that's still usable - let's say T480 and onward. you can retrofit those with tons of RAM, cheap storage, they have capable quad-cores, etc. you can get something like a T14 Ryzen 6-core with 32 GB RAM and a 1 TB SSD in the $200 region, if you do everything yourself.
everything before that is proper old tech, with predominantly anemic dual-cores (the ones you mention have single-channel RAM) and as such are a fun tinkering project, similar to the cyber deck projects - costs a lot of money, doesn't do much. on the other side of that fence are power-hungry haswells and friends that can't be wrangled into single-digit Watt/Hour territory however hard you tried.
so if you get one of those for free, or close to it, and you have parts laying around, by all means - this is as close you can get to the bespoke PC build in the laptop world. but ixnay on bying a decade old laptop for work and/or education.
edit:
X260 vs T14, negligible size difference
You have to be careful on the 80 series. They are either 7th gen Intel or 8th gen Intel. My sister has an i5-7200u t580. Also 8th gen is weird, I've been having issues with my pavilion trying to get it to run at base clock. I had to uninstall Intel thermald and run "throttled", a GitHub script to run at base clock.
Also it's the last generation of T series that has dual batteries, and a few gens later, they move to soldered ram.
thank you brother, you might have saved me from a bullet; t480s and t470s are much easier to find on my country than x260s and x250s, also it's easier to get better deals on them.
Was planning to go for one of those because of size exclusively pretty much, i like compact machines and was planning for a tiny laptop. if it isn't bothersome to ask, do you so happen to know a cheap thinkpad around 28 x 22cm?
skip the T470, T480 with 8xxxu cpu is the lowest you should go; the hardware is practically identical (and interchangeable!) but the CPU is a huge difference. also if you find them for cheap, there's T490 (refresh), T495 (AMD Ryzen), and T14 (newer variants of the T4xx series with Intel and AMD CPUs).
the 12" version would be the X280, again single-channel RAM only. in the 12" space you also have Dell Latitude 7290/7200 (just the latitude series, no inspirons and friends) as well as HP Elitebook 820 (and 830) with 8xxx and newer CPUs. Elitebooks and Latitudes are Thinkpad T-series equivalents with similar build quality and features.
thank you! your advice will be very valuable! i've had came across those ryzen thinkpads and found quite some nice ones, but didn't knew they would fit me dimensions
What's a model you could stuff the most RAM into? I'd like a 4th Proxmox node I could replicate to and take offsite, but I don't need a pile of redundant storage on it. Something I could get 128Gb into would be awesome.
T480 can take 64 GB (2x 32 GB); no idea if more is possible. I imagine newer models could but I struggle to remember seeing 64 GB SO-DIMMs... P15 can fit four sticks so that should be possible, but them things have beefy CPUs, are rather large, and also have Nvidia graphics so dunno how low-power you can make those.
you're kinda outside of the intersection of cheap and still capable with that spec. do make a write-up if you succeed, that sounds interesting.