Hi all, this is my first thread in the EVGA forums!
 
This is also my first build, and I am learning a lot! I've changed a few things from my original build (cooler, PSU, RAM, monitor, and now GPU). I hope someone can help me discern where the weakest links in my build are. I would really love some community input.
 
My current build is:
Motherboard: MSI PRO Z490-A PRO LGA 1200
Processor: Intel Core i7-10700
GPU: EVGA GeForce RTX 2070 SUPER BLACK GAMING
RAM: G.SKILL Ripjaws V Series 16GB 288-Pin DDR4 SDRAM DDR4 3200
SSD: Western Digital WD BLACK SN750 NVMe M.2 2280 1TB
Cooler: Noctua NH-D15 chromax.black
Fans: 2x Corsair ML140 CO-9050044-WW 140mm (in addition to the factory fans in my case, see below)
PSU: EVGA SuperNOVA 750 GT 80+ Gold
Case: Fractal Design Meshify C Black ATX (with the factory fans)
Monitor: AORUS FI27Q-X 27" 240Hz 1440P
 
I recently did a Step-Up from my EVGA 2070 Super to the 3080 FTW3 Ultra. With this upgrade, I am realizing that I will likely need a new PSU. I'm thinking EVGA SuperNOVA 850 G5. Any feedback on that choice?
 
And, as the thread title implies, I would like to find out where my "weakest link" is, and what I should look to upgrade next to maximize my performance per dollar. I haven't seen any temperature issues with the 2070 Super, but I understand the 3080 makes far more heat. So... can anyone help? What should I upgrade next, and what should I upgrade to?
 
Thanks!
 
(EDIT 9/23: Added monitor to build list... not sure it really matters though.)

Is CLC cooler necessary? Being new to the PC world makes me hesitant to get into putting liquids into my computer. I feel like I'd screw it up. I also worry about the size of the radiator fitting in my small-ish case with a beefy GPU like the FTW3. I'll add it to the list and do more research, though. Thanks for the tip!

If you plan overclock your RAM and use this system I think you need to replace G.SKILL Ripjaws V Series 16GB 288-Pin DDR4 SDRAM DDR4 3200 on TridentZ or better. Ripjaws have bad radiators...

It boils down to 3 things, which have more or less been covered already.  Otherwise, you have a really solid system.  You're probably getting a lot out of what you're using from a performance standpoint, so you can't do too much to min/max things anymore.
 
1.  Video card would probably make the biggest improvement.  You have a good one, but there are significant jumps to be made with a comparable 30 Series product.  However, if you're mostly happy with your actual performance now, you can probably hold out until next gen, whenever that comes out.  I wouldn't consider this a "weak" link, but this is where you will still find the most improvements.
 
2.  Cooling.  Others have offered good suggestions here, but perhaps what wasn't discussed was how much current gen CPUs and GPUs rely on temperatures to throttle performance, even below danger zones.  This means you're potentially throwing performance away that you already have.  You can always adjust your GPU fans to keep the GPU cool, despite the noise, but you can do better on the CPU cooling side.  All in all, this means considering a case and maybe CPU cooler upgrade to start.  Then you can worry about other upgrades later.
 
3.  If you really want to upgrade something for the sake of upgrading something (we've all been there), at some point I would upgrade the RAM to 32GB.  3200MHz is sufficient, but with that board and CPU, you can get closer to 4000MHz and see some improvement, but I wouldn't expect it to be night and day.

Yes, definitely upgrade your PSU. I have the 750 G1 in my 5900X/3080FTW3 build and at times I can push it too hard and hear it click and power down.