Thank you very much for your fast and in-depth answer! Also for the explanation about the reasoning behind choosing certain parts.
What would you consider a good budget for a gaming pc? That way I can always save for a while longer, and get something that will last and save myself the hassle from getting something cheaper but having to replace it sooner rather than later.
Again, thank you very much!
@DoggyMakeAwish A "good" budget for a gaming PC depends entirely on what you want to do with the computer. In your position, I'd prefer to get a 1660 ti or Super, but it's not critical. Like I said, the 1650 will still run both games on ultra settings; it's more a question of having some breathing room for more demanding custom content or future Sims 4 packs, or perhaps a different game I don't yet know I'd want to play.
You can see on the Overclockers site that upgrading to a 1660 Super would cost another £120 above the price for a 1650, which is an entirely reasonable price. (Systems with a 1660 would typically be £900 and up.) I'd certainly recommend it for someone whose budget could fit the upgrade. But aside from the obvious benefit of getting your computer sooner, the other reason not to wait is that you never know what might be available down the road, and at what price.
The quality of the build is actually not entirely dependent on the price. You could get a £1600 system with a better processor and graphics card but with a low-end motherboard and power supply. Those are the systems that most often need to be replaced in a few years, especially since some manufacturers (Dell is a big offender) use nonstandard parts that are difficult to replace and impossible to upgrade. In contrast, a system with a weaker CPU and GPU may be built to last and to take upgrades without any trouble.
As an example, the system from Overclockers UK comes with a standard motherboard, not a great one but one that should work for as long as you have the computer. The power supply is similar, and in addition it's strong enough to support a somewhat faster graphics card if you decide you need one in a couple years. The same goes for the processor, although you'd be limited to models that use the same socket. (That's the 10th- and 11th-gen Intel CPUs I mentioned before.) So that might be a £250 upgrade for a new graphics card rather than another £700 for a new computer, assuming the graphics card market comes back down to earth sometime in the next two years.
If you'd rather wait and save up a bit, feel free to come back when you're ready to buy. I'll be around.
