HP ZBook Firefly is €55 cheaper today, 18% below the other.
Over the 29 days of the last 90 both were for sale, the HP ZBook Firefly was the cheaper one on 29 of 29 days, by €53 to €179, a gap wide enough to decide on by itself.
The RAM is the only difference this site has found between them.
Price history: the lowest price we saw each week
- Dell Precision 7540€294 now
- HP ZBook Firefly€241 now
Week of 5 October 2026
- Dell Precision 7540Online Used Laptops
- €294
- HP ZBook FireflyOnline Used Laptops
- €241
Every week, as a table
| Week | Dell Precision 7540 | HP ZBook Firefly |
|---|---|---|
| 7 September 2026 | €315 | €228 |
| 14 September 2026 | €294 | €228 |
| 21 September 2026 | €294 | €241 |
| 28 September 2026 | €294 | €241 |
| 5 October 2026 | €294 | €241 |
What differs between them
No shop states these. We looked them up ourselves, and we say when.
| Fact | Dell Precision 7540 | HP ZBook Firefly |
|---|---|---|
| Linux support | Linux runs on this laptop, with something not working. “It will only boot if the AC adapter is plugged in. On battery, 9 times out of 10, it won't cold boot.”dell.com, checked 6 September 2026. | Linux runs on this laptop, with something not working. “I got a HP ZBook Firefly from my customer that I'm supposed to install UBUNTU on. It installed without a hitch, but when restarting after the instal (where desktop sound and everything has been working) i get greeted with a black screen.”h30434.www3.hp.com, checked 12 September 2026. |
| Soldered RAM | The RAM can be upgraded. “Number of slots 4 SODIMM”compbest.com.ua, checked 6 September 2026. | The RAM is soldered and cannot be upgraded. “Note: The memory is soldered and not user-upgradable.”laptopmedia.com, checked 12 September 2026. |
| Screen quality | Reviewers rate this screen well. “The 15.6-inch 4K HDR display is arguably the crowning glory of the Precision 7540. Bright and bold, it produces color as well as almost any other laptop in its class.”laptopmag.com, checked 6 September 2026. | Reviewers rate this screen well. “The 1200p IPS display (BOE0C31) is suitable for work. The PWM-free unit offers wide viewing angles and 327 nits of max brightness.”laptopmedia.com, checked 12 September 2026. |
Dell Precision 7540 and HP ZBook FireflyDell Precision 7540 and HP ZBook Firefly each have a page of their own.