The x3D series (variants? models? what on earth do all the acronym suffixes actually mean?) of CPUs do look good. Does anyone know how much they sacrifice non-gaming and single-thread performance in return for gaming? I'm considering one, but I also run a fair bit of code and I don't want compilation or numerical simulations to be too slow... Also dome aren't available outside the US sadly, and even those that are can be limited to just a few resellers.
For anyone looking at more advice, I usually trust
Toms Hardware: their articles are precise without being unreadable, and they do make recommendations based on price point and end use - although I think they overestimate the specs that people actually need for most things. Userbenchmark is to be avoided, they have
a ridiculously anti-AMD bias. Also, if you're buying parts for upgrade or to build your own,
GPUtracker will find the best deals for any specific part you tell it available in your locality (works for everything, not just GPUs).
There's a lot of advice and recommendations on the web for building / buying a PC. That's very helpful for sure, but most of it is really encouraging you to over buy: people who write those sorts of blogs / articles / reddit posts are really into their computer hardware and get excited about the latest gen and newest spec. You don't have to be, unless you want to turn building (and having) a PC into a hobby of it's own, rather than a tool for another hobby (ie, gaming). Think of it like cars: lots of people rave on about the latest Lamborghini, when for most people even an entry level BMW would exceed requirements, and a midrange Ford might be just fine.
As an aside on energy issues, the main advantage of using less power is that it gets loss hot, which means less annoying noise from fans and less chance of the computer throttling itself to prevent it melting. But it also has a real cost associated with it! Assuming energy prices of ~€0.1 per kWh, a computer that averages ~400W usage which you use for 8h a day (ie, it's both your gaming on home-office PC), you'll spend about $1000 (the cost of a decent PC) over the 9-10 years you might hope the PC will last. In other words, the total electricity cost will be about equal to hardware cost! My numbers were a little pessimistic, but it's an order-of-magnitude estimation,