In 128Gb you can run multiple High end Games plus some heavy softwares . Buy 128GB only if you want to run heavy Software and heavy games simultaneously.

Also, ideally you shouldn’t go over 80% rated power for long time, which is about 450W for a 550W PSU. I’d personally go for at least 600W and ideally 650W or more. Probably not, as Nvidia RTX 3080 & Intel Core i9-9900K do need about 500W to run.

Most Ryzen 5000 CPUs can only reach an infinity fabric clock of 1900 MHz, so your 4000 MHz RAM would work better at a slower speed of 3800 MHz. Of course, if your CPU wins the silicon lottery and can reach 2000 MHz infinity fabric, then 4000 MHz will be . . . Read more

Also, ideally you shouldn’t go over 80% rated power for long time, which is about 450W for a 550W PSU. I’d personally go for at least 600W and ideally 650W or more. Probably not, as Nvidia RTX 3080 & Intel Core i9-9900K do need about 500W to run.

Currently, the most common type of computer memory is DDR3, which uses 1.5 volts and about 2 – 3.3 amps for a typical power consumption of about 3 – 5 watts.

DDR4-2933 RAM This processor also supports up to 128GB of dual-channel DDR4-2933 RAM and utilizes 10th-generation technology. Graphically, the Core i9-10850K uses the integrated Intel UHD Graphics 630 chipset, which has a base frequency of 350 MHz and a dynamic frequency of 1.2 GHz.

Memory types DDR4-2666? It means that the memory controller are running at 2666MHz at stock. Anything above is basically a RAM overclock. So if you buy 3000MHz RAM and run them at that speed, you are overclocking the RAM.

Core i9-9900K is the fastest mainstream desktop processor we’ve ever tested. But it’s also one of the most expensive. … The new Core i9 was incredibly impressive through our benchmark suite. However, most users would be better served by cheaper alternatives, such as Core i7-9700K.

Absolutely not. The performance improvement going from 9th gen to 10th is only marginal, and due to Intel only supporting two generations per motherboard socket you will need to buy an entirely new LGA 1200 motherboard.

1024 GB or 1 TB of RAM is definitely overkill for the vast majority of uses. There are certainly contexts where it’s useful (large in-memory databases for example) but for most people it would just be a big waste of money.