I have been trying to evaluate components for a new system. Looking for something that is reasonably powerful to get me through for a while. Relatively quiet, so I believe that means not requiring too much cooling. I am also somewhat intrigued by the Mini-ITX idea. I have compiled this list, please let me know what you think, what's outright wrong, what your preferences are etc..
SilverStone SG13B-Q Mini-ITX Computer Case $48.99
Phanteks Enthoo Evolv ITX Tempered Glass $79.99
Intel Core I Plus i5+ 8500 $239.99
AMD Ryzen 5 2600 $169.99 What is the right chipset x470 or B450?
SILVERSTONE SST-NT06-PRO-V2 Sleeve Bearing CPU Cooler $55.40
ASRock Z370M-ITX/ac LGA 1151 Mini ITX Intel Motherboard $134.99
EVGA GeForce GTX 1070 Ti SC $429.99
SILVERSTONE SST-SX500-G 500W SFX 80 PLUS GOLD Certified Full Modular Active PFC Power Supply $92.93
Silverstone SST-PP08B PSU Accessory $10.96
CORSAIR Vengeance LPX 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3000 $159.99
Crucial MX500 M.2 2280 500GB SATA III $99.99
ARCTIC F12 Case Fan, 120mm $7.95
Not sure about the case and the AMD vs Intel part. Most of this is from plans on the Tech Buyer's Guru site. Newegg prices.
Firstly, about sound... There are two ways to approach overall system sound (IMO). The first is having an airflow focused case and running fans at lower RPMs. Sure, the case may be louder overall with fans at stock settings/max speeds than a silenced case with the same fans, but with fans at lower RPMs, given the airflow of the case to begin with, the fans can run at a lower RPM to acheive the same amount of airflow.
The second silenced option is to have a really quiet case (like the Dark Base Pro 900) and add very loud and very "windy" fans. There, the sound dampening of the case sort of "counters" the loudness of the fans, and while airflow will be impeded in such a case, the fans you choose will make up for it.
I personally like the first option more, given that if you do want to overclock/increase clocks somehow in the future, you can just tune your fan settings and GPU boost (and XFR on AMD Zen processors) will take care of the rest. With a silenced case (such as the Evolv, which is not that silence-focused, instead being a "showpiece" case), you would have to remove panels to get similar results.
I would personally choose a case like the Define Nano S from Fractal Design, which is a case that is somewhat airflow focused and somewhat silence focused. It has sound dampening on the back panel and the front door, but it also has front vents that actually kinda work for airflow. It also has tons of build perks (such as easily removeable dust filters, really good cable management in the rear of the case, etc. etc.
Or, if you want to go even more compact, get a Noctua L9i or some small cooler and the Silverstone SG13. It has somewhat good airflow, it's tiny, and though it's kinda a pain to build in, it looks really impressive at the end. Not sure about GPU length though...
If you want more case ideas, contact anyone on here and maybe we can figure something out
Secondly, about AMD motherboards... For ITX, I really think B450 is the way to go. 99% of the features on X470 carry over to B450, and since you can't run SLI (or more SATA or more M.2) on X470, you really don't
need a X470 board. Also, with 2000-series Ryzen chips, you don't really have to overclock, since XFR2 (eXtended Frequency Range 2) does dynamic clock adjustments based on how cool the chip is, and in many benchmarks (including games), XFR2 actually performs better than an overclock. You don't have to turn XFR2 on, either, it works out of the box.
Finally, about Intel vs. AMD... If you
just game or do a degree of video editing, an Intel processor is for you. If you want to do 3D rendering, simulation, or other professional work along with your gaming, go AMD. Intel still has a bit of an IPC advantage over AMD (which makes Intel slightly better in games), but AMD is catching up reasonably fast.
On a slight tangent, if you can, I would suggest going for something like a ADATA 64GB M.2 SSD that actually does PCIe speeds, and then a spinning disk (something like a 1 TB 2.5" hard drive) for your games and such. I'm not sure about what B450 does for M.2 storage (in previous gen Ryzen, B350 had M.2 limited to SATA3 speeds as far as I remember...)