Be happy to.
Here’s the XPS 15 9550 (Skylake) thread. About 336 pages of people talking about workarounds and problems. The most respected guy in the thread, Gonzo, who helps everyone else out (though he can be blunt, LOL!) is on his 3rd or 4th return.
Here is the thread that is specific to owners of the XPS 15 sharing problems:
That one is only about 166 pages.
Once you get there you’ll find in the Dell owners forum the 5510 and 5520 Precision owners threads pretty easily. Here is a thread with some people talking about the difference between the XPS 15 and the Precision brother:
Some comments from various threads (just examples here) on the difference between the Precision and the XPS models:
“I’ve got both (a 9550 and a 5510). The Precision is better - opened them up, more attention to detail (copper heat shields, wiring org. etc.) in the Precision. Also the screens are different, the precision screen has better colors. Its actually awesome”
"Back on topic? 5510 vs 9550.
I have both. I’ve had them apart (both Dell seconds, no warranty). My 2c on the differences:
Motherboards: identical. Same type number: LA-C361P. I think you could swap them over (use 5510 Xeon M/B in 9550). Same heatsinks.
Of course the 5510 M/Bs have NVidia Quadro graphics, so better for OpenGL, 20% worse for games, less heat/noise.
Case/speakers/batteries/fans etc.: identical.
Keyboard/trackpad: look identical. I swear the keyboard on the 5510 feels softer (same travel though) but might be imagination.
Touch/UHD Screen: Hard to know. Quoted differently (5510: IZGO), I think there have been/are several different versions of the 9550 touch/UHD. Reviews say they are different (5510 not as bright). Just looking at the two, the colours on the 5510 look deeper/better. They have the same connectors though so you could swap them over.
Overall: The insides of the 5510 had more copper insulators (stuck on to things), more detail in cable routing, more pads to prevent things coming together. They took more care assembling the Precision (you’d hope so).
So for the same price: 5510 wins (unless you are a gamer)."
“Precision 5510 have CM236 chipset, while xps 9550 have HM170.
CM236 is business class, more endurance tested and have more pcie lanes.”
And this from an XPS 15 owner:
" really like my XPS. The combination of performance, screen, upgradability, size, weight, design, keyboard, etc. is quite good. Just not as good as Dell marketing says it is.
Unfortunately, the 9550 shipped in beta form. Most of the major issues were resolved via BIOS and driver updates, but it took Dell a long time (e.g. the 4k flicker was largely resolved last month!). Cooling shortcuts requre performance users to replace the thermal paste and thermal pads. It probably took me a few hundred hours of research and execution to optimize this laptop and I think that is a big ask from Dell. If Dell had shipped the 9550 with fully vetted BIOS-drivers and proper thermal paste-thermal pads then optimization would have taken a few hours at most.
Also, Dell’s marketing needs to be called out. The TB3 lane reduction will “suprise” some users for speed and compability. Dell’s own Thunderbolt problems and the Dell TB15 dock “recall.” The HDMI 2.0 “oversight” is irritating. The 9560’s missing fingerprint scanner, however, is better than a defective one (it must have been really bad for dell not to deliver in beta form).
In the final analysis, after a year of painful real-world beta testing, Dell got the 9550 largely sorted and mine runs largely trouble free. The “new” 9560 looks to be virtually the same as the 9550 so owners should benefit from massive real-world platform testing. Dell said they improved the Alienware thermal paste-thermal pads around December 2016 so maybe that flows through to the 9560. Today I think the 9550 is an excellent laptop for technically savy users who understand its limitations and are able (or willing to learn) to optimize it. The 9560 may be even better but I’ll let new market beta testers report here…"
The Precision is in the Dell business line, so it appears from my online research they spend more time on QC and quality control on those units.
At this point, I’m waiting and reading the reports on notebookreview from people getting the new Kaby Lake versions of both the XPS and Precision systems. My guess is around March for my purchase.