GTX 3070

[Vale]

I've a 450W BEQUIET PSU. 8600G cpu, 3 NVME drives and 2 SSD drives. Currently running a GTX 1080.
In gaming my plug in wattage meter goes up to 282W, on browsing it is stable at 66.5W.

The power difference between a GTX 1080 and an RTX 3070 is 70W give or take.
In Theory my system should handle that?
Google and other sources say 550W PSU minimum.

If I buy the RTX 3070, will it run OK or do I need a better PSU?

Thanks.

 

[Rroff]

RTX3070 can have some quite hefty momentary power spikes in my experience (some people have had it overload their PSU resulting in an unexpected reboot/shutdown on 500-550 watt PSUs even) - I wouldn't want to run one on a 450 watt PSU.

 

[tamzzy]

What @Rroff said

 

[Rroff]

I can't remember for certain now, your 8600G will give more leeway, but when I had my Xeon 1650 V2 w/ 3070 setup IIRC was seeing around 415-460 watt full system power draw when gaming. Unfortunately the only 3070 I have in use right now is in a TB4 enclosure so can't easily re-test to see.

 

[tamzzy]

The other issue with a 450w PSU powering the 3070 is that the transient power spikes will kill off the PSU sooner rather than later.

 

[BUDFORCE]

3070 is a **** card anyway, I'd be looking at an AMD alternative with more VRAM.

 

[Gray2233]

I'd be looking at a good 650W for that tier of card, and tbh I'd argue it's a poor buy second hand as of the end of 2024 unless you get an absolutely fantastic deal.

 

[Rroff]

3070 is a **** card anyway, I'd be looking at an AMD alternative with more VRAM.

Nothing wrong with the 3070 as long as you are aware of/OK with the 8GB VRAM limitations.