I agree with many of the concerns already expressed:
16GB RAM means after Windows and Premiere Pro take the RAM they need, there won’t be a lot left over for graphics acceleration with the Intel Integrated Xe Graphics. This is a double whammy against GPU acceleration, because in addition to integrated graphics not being preferred (discrete is better), the integrated graphics could end up starved for graphics memory. And therefore could run more slowly.
256GB storage means that after you subtract the amount of space needed for Windows, to install Adobe Creative Cloud apps, and to load your photo and video files, how much is left over? Probably not a lot, if it’s under 100GB free space. That is a major danger sign for both Premiere Pro Media Cache and Photoshop scratch disk files. Both are performance caches requiring large amounts of space, and are likely to run out of space very quickly if only given what’s left over from just 256GB internal storage. If your performance caches have no room, the application can’t take advantage of them and slows down.
I cannot imagine using a computer with less than 512GB internal storage for Photoshop and Premiere Pro unless large amounts of external storage are used for photo and video media. (In my last three laptops, I used 1TB internal storage and lots of external storage.)
It’s always useful to look up a review or two while keeping the special demands of graphics/video editing in mind. The Notebookcheck review of this laptop has this to say in the Processor section:
In the Cinebench R15 stress test, the EliteBook 850 G8 takes last place in our comparison chart.…The multi-core benchmarks reveal that the EliteBook 850 G8 is not meant for taxing workloads.
In the Temperature section:
Under load, the CPU can throttle so hard that the CPU frequency falls below the base clock. If users try to run demanding applications for an extended period of time on the HP laptop, the CPU performance may drop significantly.
Neither of those quotes is what you want to hear if you’re going to edit video.
With laptops, the cooling system is critical. Because of the constrained space, if the CPU requires too much power (generates too much heat), and/or the cooling system can’t shed the heat fast enough, the CPU must throttle down, so if you put the fastest CPU in there it might not matter if it can only go as fast as the cooling system allows.
I think a huge clue is that the review calls it a “business laptop.” That means it’s great for Microsoft Office work and such. Emails and spreadsheets. It is not designed to be a “graphics workstation” which would have a more powerful GPU, better cooling, etc.
Also, the linked review points out that the laptop’s screen almost covers the sRGB color gamut. That could be OK if you edit video for Rec.709, but the screen falls well short of covering the Adobe RGB or P3 color gamuts, so if those are requirements for your Photoshop or Premiere Pro editing, cross this laptop off your list.