Those are just the official specs for the Core i9. Intel also supports up to 2666MHz on all their newer chips, though you can actually push them up to 4266MHz.
Your build probably won't even hit 350W while gaming.
Regarding the case, I see you're using a Z3. I might go with something a bit higher-end or larger instead:
The motherboard isn't the best call, mostly because the VRM cooling looks pretty weak. I think there are better, more budget-friendly B450 options out there.
For the PSU, I'd probably go with an EVGA 600 W Gold instead; it comes with a 5-year warranty and feels a bit more solid.
The 2080 is about 50% more powerful. Sure, the value isn't quite as great, but at that resolution, your FPS is going to be entirely dependent on your GPU.
Honestly, that’s not a great deal for a 9700K paired with an RTX 2060. It doesn't make much sense either, since you usually grab a 9700K to pair with something like an RTX 2080 at 1080p, but I guess some people $1.25 just don't care.
You might want to look at an i5 8400 or 9400F instead. They tend to perform slightly better in games than a Ryzen 2600, and I think prices have stabilized a bit lately. There are also a few other tweaks I'd probably make to that build.
EDIT: For example,
1 x Palit GF RTX 2080 Dual, 8GB GDDR6 1 x Seagate Barracuda 1TB HDD (3.5, SATA III-600) 1 x Intel Core i5-9400F (2.9GHz, 9MB, 2 x Apacer Panther Gold DDR4 2666MHz, 8GB 1 x Gigabyte Z390-UD 1 x Crucial MX500 500GB SSD 1 x EVGA 550W Gold Power Supply 1 x Antec P7 Mid-Tower Case, Green, 2 x 12cm Black Case Fans
I don't think it's really worth splurging on a beefier processor or a higher-end motherboard. Maybe just grab a power supply with a longer warranty instead.
Uh, I'd say RAM prices will probably drop about 15-20% by the end of winter, so maybe you could just grab one 16GB stick now and pick up another 16GB one in three months.
I guess I'd save $367 by going with the 1700 x instead of the Ryzen 7 2700 x since there's maybe a 10% difference. Threw in a high-end board for $67 more.
They aren't any slower on an X370, honestly. The actual tech is built into the processor itself, so the motherboard shouldn't really make a difference.
So, I'm looking at this MSI RX580 8 G Armor. It’s a Radeon card with 8GB of GDDR5 and a 256-bit bus, running at 1340/2000MHz (V341-091). It seems decent enough, I guess. So, I've got an AMD Ryzen 5 1600X BOX, 3.6GHz with 16Mb on the AM4 socket. Just putting that out there, I guess. Maybe consider some DDR4 16GB (2x8GB) Crucial Ballistix Sport kits, specifically the 3000MHz version (BLS2K8G4D30BESBK). It seems like a solid choice. So, I'm looking at this 240GB Kingston A400 SSD, the SATA3 version (SA400S37/240G). Just a basic little drive, I guess. So, I was looking at this Fortron CMT 230 power supply—the 550W Hydro GE model with ATX 2.4 support. It seems like a decent enough option, I guess. Fortron CMT 230 case, black with a window, no PSU included, ATX. It looks like the ATX Arctic Freezer 33 covers quite a range, including AM4 and those various Intel sockets. I guess it’s pretty versatile for most builds. I guess it’s the MSI B450 Tomahawk, an AM4 board.
Total: $2383Maybe 12 monthly installments?
Do you pay in installments or all at once? If you go with the lump sum, the Price1 is about 5% cheaper, I guess.
AMD Ryzen 7 1700 box ASUS Prime X370-PRO g. Skill ASUS PRIME X370-PRO G.Skill - Ripjaws V 32GB (2 x 16GB) DDR4 2400MHz Cooler Master MasterBox K500 4.974
$1.75 - Micro Center
You could probably pick a different case, but this one is $217.