I am not sure it is fair to suggest an entire brand is better than another brand. All blanket statements are false (and yes, I understand the irony of that claim).
I still generally prefer Intel, personally. I think it important to consider the over all price of a computer. Once you factor in the price of the motherboard, RAM, graphics card, case, PSU, drives, monitor(s), keyboard, mouse, speakers, Windows license, applications, I won't say the price differences in CPUs becomes insignificant, but certainly less significant. Spread the difference over the normal 3 - 5 year life expectancy of the computer, and and that difference becomes even less significant.
Of course, one can easily cherry pick a pair of examples that makes one stand head and shoulders above the other. But I also note price per performance is NOT the most important criteria for many builders and buyers.
No doubts others will be able to show charts that are the complete opposite of the one following. But that just illustrates my point. It depends on what you are looking for, personal preferences - and maybe, for some, a bit of brand loyalty thrown in.
Toms Hardware,
CPU Hierarchy: Intel and AMD Processors Ranked, April 5, 2020.
My conclusion is that both makers make excellent,
reliable, CPUs. And with a little planning and careful research, one can build a great computer with either platform.
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I agree with the comments about getting a quality PSU from a reputable maker. I like EVGA or Seasonic Gold certified supplies. I don't like Corsairs except for their top tier lines. Don't waste your money on Platinum or Titanium unless you find one that is on sale for a price you cannot pass up. It typically would take years to make up in energy costs the extra price for those higher certified PSUs. PCPartPicker does a pretty good job of sizing up your PSU requirements.
Or you can take the time to research each component and total up their demands, or you can use a PSU calculator. The only one I use and recommend is the
eXtreme Power Supply Calculator. Use it to determine your minimum and recommended power supply unit (PSU) requirements. Plan ahead and plug in all the hardware you think you might have in 2 or 3 years. This might include extra hard drives, a bigger or 2nd video card, more RAM, etc. I recommend setting Computer Utilization to 16 hours per day and CPU Utilization to 100%. These steps adjust for capacitor aging and ensure the supply has adequate head room for stress free (and perhaps quieter) operation. These steps also add a little buffer for unplanned future upgrades or added hardware demands.
Note that all PSU calculators pad the results - the last thing they want to do is recommend an underpowered supply. While Outervison's pads the results too, it is the most conservative in part because it is so flexible and extensive in its options - a very good thing. What I also like about this one is it has a regular staff of researchers to keep it current as new devices come out. If they have missed one, a quick email to their support typically gets it listed in a day or two.
So budget for a quality supply, but the supply should be one of the last purchases - so you can size it up correctly after you select your other components and determine (or factor in) their power requirements. Buying
too big a supply is NOT better - though it typically does not hurt anything but your budget.
The eXtreme Power Supply Calculator will recommend the minimum size UPS too. A larger wattage UPS will provide a longer battery run time and/or support additional hardware too, such as your network modem, wireless router, monitor(s) and even phone.
I personally feel a quality PSU and quality case form the foundation for a computer that can last through years of evolutions and updates. And I also Fractal Design cases for that. I recommend the R6. It is an outstanding mid-ATX case. While the Focus G Mini is an excellent case, it limits you to a µATX or Mini ITX size motherboards. Should your nephew decide in 3 or 4 years he wants to upgrade to a standard ATX motherboard, he will be forced to buy a new case. But with a quality mid-tower case like the R6, he can put an ITX or µATX in it today and an standard ATX (or even an eATX) tomorrow. Not to mention a wide assortment of case fans, tall CPU coolers or even radiators with no worries about space.
I admit the R6 is more expensive, but I tend to think strategically - that is, long term. That said, Fractal Design has a
Focus G Mid Tower that is the same price as the Focus G Mini, but supports an ATX board too.