Anyone has experiences with XPS Tower?

The CPU's you reference are all relatively old and near obsolete.  Current Intel CPU's are 12th Gen and even 13th Gen has just been released.  Buying NEW, I would suggest the 12th Gen and possibly 11th Gen but no older.

A laptop compared to a desktop is a poor comparison, too.

XPS tower with i7 8700k, gtx 1070 ti, 16gb ram, 512gb ssd and 2 tb HDD for $1k4
too much.

you can build your own using same spec components for less than 1/2 of that.

How slow is your internet? Seems it took a few years to finally post this up.

All kidding aside. Pass on those setups. Those were released in 2017, you are getting ripped off. For that kind of money you can get something new that is far superior. 

Intel CPUs performance from 4th gen to 9th gen were such small incremental upgrades due to lack of competition at the time, that if you're getting a 8700k, you're basically getting an 8 year old 4790k with two extra cores.

Think of it this way. Back then, Intel was so lazy, each year they would make small changes to their CPUs. They introduced a "new generation" of CPUs by turning last year's i5 into an i3, the i7 into an i5 and released a new i7 flagship with more cores and/or threads. By the time you knew it, the i3-10100 was identical to the i7-7700 in almost every aspect. Then there was that debacle with the i7-9700k with no hyperthreading.

 If you want to spend that kind of money on a 8th gen i7, you're better off buying a low end computer for under $400 with an i3-12100 CPU and adding a nice PSU and GPU to it. The i3-12100 outperforms the i7-8700k in every aspect, plus you'd be getting the latest tech such as DDR5 and pcie 4.0 support. 

Hope that helps. 

Patagbura - I have an XPS 8950 with an i9 and an RTX 3090 GPU. The 1050ti video card you mentioned is not a good choice for video editing. I would purchase an RTX 3000 series at minimum. My 8950 is a solid system. Very stable

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@patagbura wrote:

I am deciding between the XPS 15 and XPS Tower for video editting. I like the XPS 15 but seem like it has a lot of problems. I can get the XPS 15 with i7 8th edition, gtx 1050ti, 16gb ram and 1 tb SSD for $1k6 I can get the XPS tower with i7 8700k, gtx 1070 ti, 16gb ram, 512gb ssd and 2 tb HDD for $1k4. The problem is I found so many negative reviews about XPS 15 and almost no review about XPS tower. Please give me your advice. Thank you!

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When looking for reviews for used/refurbished computers ...

Well, the XPS-15inch laptop should have a 4 digit model number ... look-up reviews for that.

Same for an "XPS Tower" desktop. It should have a model-number like 8950, 8940, 8930, etc.

I am going to guess the XPS 15 with i7 8th edition, gtx 1050ti, 16gb ram and 1 tb SSD, it would be either an XPS 15 9570 or XPS 15 9575 2-in-1.  Value around 450 to 500 USD.

For the XPS tower with i7 8700k, gtx 1070 ti, 16gb ram, 512gb ssd and 2 tb HDD, that would be an XPS 8930.  Value at 550 USD.

The XPS desktop with added fans will be okay to handle many hours of high workload but the laptop will have problem with heat issue.  So my advice is you can be better off with a Precision 5820.  A higher end model, outfitted with a Xeon W-2135, 64gb RAM, 1tb NVMe SSD, and a Quadro P5000, can be had for around 700 USD.  It can get all serious editing works done with ease.