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Help deciding on a ThinkPad T480 in c/[email protected]
[–] [email protected] 1 points 1 day ago (1 children)

By chance are you familiar with the T14 Gen 1 AMD? I realized that it can have 6 cores and 12 threads, which is pretty cool, but it also looks like the battery drains rapidly even during suspend.

I had the same issue [power drain in standby] with the ThinkPad T14 AMD. Left it in my backpack for two days and the battery was completely drained.

https://news.ycombinator.com/item?id=28088584#28088671

T14s Gen 4 AMD on linux, significant battery drain with lid closed

…
I get massive battery drain when my laptop is sleeping (50%+ in 12 hours for example).

https://old.reddit.com/r/LinuxOnThinkpad/comments/lfc0ax/t14_gen_1_amd_suspend_loses_battery_fast/

But these comments are from a few years ago, so I don't know whether or not the issue has been fixed by now.

Help deciding on a ThinkPad T480 in c/[email protected]
[–] [email protected] 1 points 2 days ago

I haven't looked carefully, but from my last search (approx. 4 months ago) I was under the impression that the T480 was the last dual-battery ThinkPad.

Help deciding on a ThinkPad T480 in c/[email protected]
[–] [email protected] 1 points 3 days ago (5 children)

Thanks for the detailed breakdown.

How well do those other models (T49x, T14 Gen 1) work with Linux? Is everything compatible out-of-the-box? And how does the CPU performance compare to the T480? It looks like the T490 has the i7-10710U and the T14 Gen 1 has the Core i7-10810U. Is the CPU performance ranking T14 Gen 1 > T490 > T480? (I'd think a bigger number means better performance.) Does the performance difference even really matter? It looks like these laptops were released 2018 - ~2020, so I imagine they're all close in performance.

T480 specs

T490 specs

T14 Gen 1 specs

I also found out that there is a difference between the T480 and the T480s. Do you have any opinions on them? A Reddit user said this:

This sub loves the T480, but the T480s is a much nicer feeling machine in the hand due to the external frame materials.

Reasons for the T480: power bridge, 64G RAM dual channel. T480s can do 40G RAM which is plenty but it will sacrifice some real world performance due anything above 16G being single channel (visible on i.e. speedometer 2.1)

Reasons for the T480s: build quality/feeling, portability

Link to post

T480s specs

Overall, it looks like the T480s is less upgradable, but more comfortable. Is that analysis correct?

Help deciding on a ThinkPad T480 in c/[email protected]
[–] [email protected] 1 points 3 days ago (1 children)

Thanks for your input. I appreciate it.

Which battery did you buy (if you bought one, of course)? Any recommendations or anti-recommendations? Official batteries usually go for extortionate prices, but aftermarket batteries are a little scary since you can't tell what quality you're going to get until it's too late.

Help deciding on a ThinkPad T480 in c/[email protected]
[–] [email protected] 1 points 3 days ago (1 children)

Thanks for the thorough response. It helps a lot.

How is the Wi-fi on your laptop? Did you have to do something hacky to get it to work, or did the Arch kernel just recognize everything nicely?

7
Help deciding on a ThinkPad T480 (lemmy.ca)
 

Hello everyone. I've been looking for a new laptop recently, and I was wondering what your thoughts were. This is what I want in a new lapop:

  • Decently powerful processor for virtualization, compilation, and BitTorrent
  • Easily replaceable/upgradable battery
  • Upgradable RAM
  • Upgradable storage (preferably 1 TiB+ NVMe SSD)
  • Webcam
  • Microphone
  • Hassle-free Wi-fi (I'm tired of fighting with proprietary blobs that need manual installation and want something plug-and-play)
  • Hassle-free Bluetooth
  • Ethernet port
  • USB ports
  • Hardy frame (nice but not required)

Important note: Ideally the laptop will be compatible with Linux Libre, as I want to run Guix System on it. But I'm not opposed to using the normal Linux kernel if necessary (and probably will anyways due to security protections like Spectre).

I've been eyeing the ThinkPad T480 (specs link) for some time. What do you think? It seems to tick all the boxes:

  • Powerful processor: i7-8650U (a 2018 model I think)
  • Upgradable battery: 24 Wh internal + 72 Wh discrete battery
  • Upgradable RAM (up to 32 GB)
  • Upgradable storage
  • A webcam
  • A microphone
  • Wi-fi
  • Bluetooth
  • Lots of ports (3 USB Type-C, 1 HDMI, 1 Ethernet, 1 headphone)

I do have some concern about the additional storage though. A Reddit user said this:

Just note that the T480 has only 2 usable PCIe lanes, so it's half the rated max speeds (ie, for most of the premium performance pcie3x4 drives, it's about 3500/3000MBps reads/writes respectively), so half that because it's only 2 lanes.

Found this out the hard way, ended up selling the T480 and going for a T14 AMD instead, because for that particular use case I had, high speed reads/writes were important. Was wondering why my 970 Evo Plus was so slow, and thought I had a faulty drive for a moment.

Lenovo acknowledges this limitation at the PSREF: "Installed M.2 SSD is PCIe 3.0 x 4 but run at PCIe 3.0 x 2 due to M.2 SSD adapter limitation"

https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_T480/ThinkPad_T480_Spec.PDF

Link to post

I'm not sure what to think about that. I don't like the idea of getting half capacity, but 1.5 GBps doesn't seem so bad, even if it could theoretically be higher.

Has anyone here used this laptop? Am I understanding the specs correctly?

This isn't specific to this laptop, but how do you determine which NVMe to get? I see lots of numbers and am not certain how to interpret them.

If you think another laptop would meet the above qualifications, feel free to point it out. But my budget is rather tight (250 USD max for the computer, preferably under ~200 USD if possible), so I probably don't have a lot of options with regards to newer computers, which is why I was considering this slightly dated model.

Bonus: I found this article while browsing. Looks like the Wi-fi and Bluetooth don't work…