HP ProBook 640 G5 has no offer that ships to you today, so there is no gap to state.
Over the 20 days of the last 90 both were for sale, the HP ProBook 640 G4 was the cheaper one on 20 of 20 days, by €86 to €87, a gap wide enough to decide on by itself.
Linux support and the screen both differ between them.
Price history: the lowest price we saw each week
- HP ProBook 640 G5€267 now
- HP ProBook 640 G4€179 now
Week of 5 October 2026
- HP ProBook 640 G5
- no offer
- HP ProBook 640 G4PCLiquidations
- €179
Every week, as a table
| Week | HP ProBook 640 G5 | HP ProBook 640 G4 |
|---|---|---|
| 24 August 2026 | €267 | €181 |
| 31 August 2026 | €267 | €181 |
| 7 September 2026 | €267 | €179 |
| 14 September 2026 | €267 | €179 |
| 21 September 2026 | €179 | |
| 28 September 2026 | €179 | |
| 5 October 2026 | €179 |
What differs between them
No shop states these. We looked them up ourselves, and we say when.
| Fact | HP ProBook 640 G5 | HP ProBook 640 G4 |
|---|---|---|
| Linux support | nobody has published this yet | Linux runs on this laptop. “Linux version 5.19.9-200.fc36.x86_64 (XXX@XXX) (gcc (GCC) 12.2.1 20220819 (Red Hat 12.2.1-1), GNU ld version 2.37-36.fc36) #1 SMP PREEMPT_DYNAMIC Thu Sep 15 09:49:52 UTC 2022”linux-hardware.ru, checked 6 September 2026. |
| Soldered RAM | The RAM can be upgraded. “(2) Dual-channel SODIMM slots (both slots are customer accessible/upgradable)”support.hp.com, checked 6 September 2026. | The RAM can be upgraded. “2 SODIMM Both slots are customer accessible / upgradeable”gc3.de, checked 6 September 2026. |
| Screen quality | Reviewers rate this screen well. “The screen quality is good for office work, movies, and YouTube.”mobilexfiles.com, checked 6 September 2026. | nobody has published this yet |
HP ProBook 640 G5 and HP ProBook 640 G4HP ProBook 640 G5 and HP ProBook 640 G4 each have a page of their own.