upgrade? Upgrade or Nah?

[Oseth]

Good morning/evening/afternoon fellow techies, I have a dilemma: Upgrade or No?
As you all know nVidia is about to drop what they have dubbed a "BFGPU" we all know as the RTX 3090. I will be purchasing said BFGPU on the 17th when it drops. However, I am wondering if I should upgrade my CPU from Ryzen 7 2700x to Ryzen 7 3700x? Here is my current PC build, keep in mind I will be replacing the motherboard with MSI MPG B550 GAMING EDGE WIFI AM4 USB 3.1 AMD Motherboard PCIe Gen 4:

 

CPU: AMD Ryzen 7 2700X 3.7 GHz 8-Core Processor
CPU Cooler: Corsair H100i RGB PLATINUM 75 CFM Liquid CPU Cooler
Motherboard: MSI B450I GAMING PLUS AC Mini ITX AM4 Motherboard
Memory: Corsair Vengeance Pro RGB 32 GB (16 x 8 GB) DDR4-3200
Storage: Western Digital Black NVMe 500 GB M.2-2280 NVME Solid State Drive  
Storage: SanDisk SSD PLUS 1 TB 2.5" Solid State Drive
Video Card: MSI GeForce RTX 2080 Ti 11 GB SEA HAWK X Video Card
Case: Corsair Crystal 570X RGB ATX Mid Tower Case 
Power Supply: EVGA SuperNOVA NEX 650 W 80+ Gold Certified Fully Modular ATX Power Supply <======= Might need to grab 750w if this PSU can't pull the 3090

This is mainly a gaming PC. Majority of the time I play on 1440p but occasionally I switch to my 4k TV, grab a controller and enjoy some couch time.
Obviously the GTX 3090 is a pricey piece of equipment, add the mobo and I am in the hole for about $1700 post tax. Would be nice if I didn't have to spend extra $300 on a new CPU too.

 

What do y'all think?

[Fatih19]

First of all, as of right now, there is no benchmark, so we don't know for sure if you actually need to upgrade to a 3700X to prevent bottleneck. However, at that resolution games would be more GPU-bound so IMO you don't need to upgrade to a 3700X. Compound that by the fact that AMD is going to announce their new Zen 3 CPU in the 8th of October.

[JuztBe]

Depends on games and settings as well, not only resolutions.

Generally speaking it will be sufficient. Even if you notice that it doesn't cut it, might want to wait for 4000 series Ryzen for more noticeable upgrade. 

 

[Captain Pirate]

I'm in a similar boat and have decided to wait for the zen 3 cpus.

[Chris Pratt]

First, you don't need a 3090. You're mostly paying for a ridiculous amount of VRAM you don't need for gaming. Get a 3080, and save yourself $800. Second, a 3700X is mostly a side-grade from a 2700X. It's only 10% better perf in productivity and no meaningful difference in gaming. The 4700X (or whatever it might be called) might be a more meaningful upgrade, so I'd wait until Zen 3 drops. You're fine with a 2700X regardless, though.

[.Apex.]

a 20% performance increase over the 3080 for more than double the price is ridiculous, unless you need the extra VRAM (which seems like you don't) then I don't know why you would need a 3090, go with a 3080 instead and upgrade to Zen 3 when it comes out in October.

[.Apex.]

8 minutes ago, Syn. said:

a 20% performance increase over the 3080 for more than double the price is ridiculous, unless you need the extra VRAM (which seems like you don't) then I don't know why you would need a 3090, go with a 3080 instead and upgrade to Zen 3 when it comes out in October.

besides, you already have a 2080 Ti and an upgrade to the 3080 doesn't seem significant judging from the recent leaks, it's only 25% faster, hard to justify an upgrade like that and it seems so unnecessary if you're already satisfied with the performance of your current card since you're most of the time playing on a 1440P monitor.

[Haro]

at higher resolutions it shouldn't be bad, but wait for ampere to launch and check how it performs and how the 2700x holds up with a 3090.

But honestly if you're just gaming, the 3090 is not worth it over the 3080, and the 3080 should be more than enough and the 3090 is not worth paying like.. 700 bucks but wait for them to actually come out and check their performance and decide if it's worth paying the extra or not.

and the 2080ti is still a competent gpu.

[jones177]

If you are ok with running a 2080 ti now with a R7 2700 you will be ok with a new card.

 

I overclocked my 2080 ti so it would run at between 2085mhz and 2115mhz and ran a bunch of my AAA games at ultra. They all bottlenecked at 1440p. Lowing the settings would raise the frame rate but the bottleneck got larger. At 3440 X 1440 and 4k with the same settings I was GPU bound again. 

 

I use 4k OLED TVs exclusively now so my CPUs are only an issue with older and modded games. The bottlenecks are over 130fps at ultra with my Intel 5ghz CPUs and that is perfect for 120hz.    

 

As for power My 2080 tis have two 8 pin connectors so they use 150 + 150 + 75 the equals 375.  If I buy a card with three 8 pins It could use 525 watts.

So only upgrade if the card you buy has more than two 8 pins.

With my 2080 ti running at silly high overclock the max I used was 550 watts from the wall and that was only with AC:O. SOTTR used 100 watts less.