Question Upgrading GPU now, but keeping my existing system ?

Jul 8, 2025
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Currently in the process of upgrading parts of my PC. I am curious about the pros & cons of upgrading my GPU before upgrading my motherboard/CPU and stuff. lets say a 5080 for example. What would be the negatives of doing so?

My existing system:
CPU: Intel Core i7-8700k
Motherboard: MSI Z370-a Pro LGA 1151 ATX
Ram: Corsair Dominator Platinum 32Gb
SSD: Samsung 870 Evo 1tb & 1 other random one
Power Supply: Corsair 850W RM850c
GPU: Gigabyte Aorus Geforce 3060Ti
Case: Corsair Carbide Series 275R Mid tower
Cooling: Corsair Hydro Series h100x Liquid CPU Cooler
 
Welcome to the forums, newcomer!

What resolution are you working with? Why are you looking to upgrade the GPU?
Currently in the process of upgrading parts of my PC.
Why are you looking at upgrading your PC?

How old is the PSU in your build? Has the PSU been powering the RTX 3060 Ti since it's tenure? If so, you're looking at a new PSU purchase in tandem with your GPU purchase as the high transient load spikes of the RTX3000 series would've degraded the unit internally.

If I was in your shoes, I'd keep saving up until I had the funds to build from the ground up instead of spending on a GPU that costs a pretty penny.

Moved thread from Components section to Systems section.
 
Currently in the process of upgrading parts of my PC. I am curious on the Cons of upgrading my GPU before upgrading my motherboard/CPU and stuff. lets say a 5080 for example. What would be the negatives of doing so?

My Current system:
CPU: Intel Core i7-8700k
Motherboard: MSI Z370-a Pro LGA 1151 ATX
Ram: Corsair Dominator Platinum 32Gb
SSD: Samsung 870 Evo 1tb & 1 other random one
Power Supply: Corsair 850W RM850c
GPU: Gigabyte Aorus Geforce 3060Ti
Case: Corsair Carbide Series 275R Mid tower
Cooling: Corsair Hydro Series h100x Liquid CPU Cooler
What is your resolution and how old is your psu?
 
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If your main use is gaming, first try this test to see if a cpu or a gpu upgrade is more effective.
Run YOUR games, but lower your resolution and eye candy.
This makes the graphics card loaf a bit.
If your FPS increases, it indicates that your cpu is strong enough to drive a better graphics configuration.
If your FPS stays the same, you are likely more cpu limited.

There is always a limiting factor.
My guess is that you are relatively evenly balanced(cpu vs. GPU) right now.

In that case, I would opt for the cpu upgrade first.
On the same motherboard, your cpu upgrade options are minimal. Mainly a I9-9900K would get you more threads but not more single thread performance which is what games need.
Latest gen products will use DDR5 ram, but even a i9-14900K can use DDR4 ram well.
See my sig.
Do you have a budget?

On the graphics side, your 850w psu can handle a stronger GPU upgrade.
That might be good if your monitor is higher resolution or you play fast action games.