Looking for a tip for a good (possibly used) PC I can upgrade if necessary?

For years, I only had laptops on the company and I'm totally out of PC business. I used to assemble the things myself… 20 years ago OMG

So I'm looking for my kids just a good used PC on which primarily Office and Internet should run, but (unfortunately…) Minecraft and Fortnite… Since I myself gambled a bit of CS, I know that it should run properly there…

my question: is that good for shooting a complete pc on eBay and then ne GTX960 needed to buy and reinzuklatschen?

eg buy this PC:

https://www.ebay.de/...3088362705

have just made sure that 8GB RAM, SSD HDD and WIN10 …

What do you all mean?

I think this calculator should fulfill your requirement.
But as the previous speaker said. The processor is limited. And will reach its limits in the next few years.

I have a HP 8300 Elite in the basement with an i5 3570 (4x to 3.4 GHz, TUrbo to 3.8) with 8 GB of RAM and expect me to join in the usual stuff over the next few years.
The usual handling and a few programming things (which are not too demanding) go without problems.

But I really do not belong among the PC gamblers. But the A10 I would not get me with this performance, if the next time to go smoothly (in addition to the games). Maybe you have interest in my computer xD, otherwise I would rather choose a normal HDD instead of SSD and for a stronger processor. The "upgrade" is always such a thing.

Thank you for your answers!

A colleague wants to sell me the following PC (350 euro) where I do not need monitor - so vlt I get the for 300 euro:

little used, top condition:

- Acer Predator G3-605

- Intel Core i5 4590

- NVIDIA GeForce GTX 960 2GB

- 8 GB DDR

- 60 GB SSD + 1 TB hard drive

- DVD Super Multi

- Card reader

- Wi-Fi stick

- Windows 8.1 64-bit

- Screen 24 inches Acer G246HLBbid

- Logitech Z200 multimedia sound system

What do you think?

Unfortunately, I was too slow, but how is this here for 200 euro

Technical data:

- Intel Core I5-2400 processor at 3.1 GHz (LGA1155 socket)

- GTX 570 graphics card

- 6 GB of RAM

- 128GB SSD

- 320 GB hard drive

- HDMI connection

- Windows 10 installed

What should I pay attention to?

Ne GTX960 or so I can always retrofit if needed?