Corsair TX650M x 7900XT?

[Kenjiin]

Hi all!

I'm looking to have to upgrade from my dead 2070 Super and am looking at the Powercolor 7900XT. I'm getting mixed info online as to whether my gold rated 650w PSU (Corsair TX650M) would handle the build with the new card.
So it would be a 7900XT, 5800X3D, 16gb, Gigabyte B450 Gaming mobo, Arctic Liquid Freezer II 360, er, 3 case fans, an HHD and SSD.

I know having more w's would be ideal, but I'm trying to see if its likely to have any issues immediatly. If not I can avoid upgrading it but still buy/use the new card now. Thanks in advance!

 

[Gray2233]

No, as I told you in the other thread.

It's a very good PSU and more than enough for that rig. The only reason you'd have problems with a 7900XT is if your PSU inherently had something wrong with it, or you found some way to run everything you had installed at once -- and even then it'd probably be fine.

 

[Kenjiin]

Ah, yes. The only reason asking here as your green light was one of the few positive responses I could find in a sea on internet '750W mIniMum!1' - And trust me, I was looking for biased responses that don't involve me spending more money

I'll bite the bullet!

 

[Gray2233]

Ah, yes. The only reason asking here as your green light was one of the few positive responses I could find in a sea on internet '750W mIniMum!1' - And trust me, I was looking for biased responses that don't involve me spending more money

I'll bite the bullet!

The general recommendations of GPU's needing X power supply are often due to people running crap power supplies, the TXM while technically a budget "gold" model is still very decent.

See here: https://www.guru3d.com/review/amd-radeon-rx-7900-xt-review/page-6/#power-consumption

You'll be fine unless there's a fault, and if there is you'd need to buy a new PSU anyway.

 

[Tetras]

And trust me, I was looking for biased responses that don't involve me spending more money

I'm getting mixed info online as to whether my gold rated 650w PSU (Corsair TX650M) would handle the build with the new card.

There's never a 100% guarantee with any PSU I'm afraid, so you're always going to get a bunch of different responses on the Internet.

You can have issues even with a PSU that is over the recommended wattage, if the PSU really doesn't like the characteristics of the card, or the PSU is an old design/not a good unit.

In the worst case, if you find that the card trips your PSU, then you could power limit it until it stops tripping.

If you're right at the edge of your budget and are not comfortable with what you're spending, perhaps hold fire and reconsider. There might be more deals on the way, as we get closer to black friday.

 

[pastymuncher]

Is this the original bronze rated unit or the newer gold rated unit? If it's the original it's getting on a bit now and I would be replacing it anyway. You don't actually have 650w, the original had a 12v rail of 612w and the newer version has 610w. My previous setup with my 7900GRE and a 12600 non-K cpu (65w) would easily hit 500-550w when gaming so you may be cutting it close, especially if you overclock anything. With my new spec (in siggy) I am still hitting 479w and that's with a undervolt on the cpu and gpu. If you are spending around £700 on a gpu then a extra £90-100 for a quality 750w or 850w psu is worthwhile and sensible step to take.

I have always disliked 650w psu's as they sit in a sort of no mans land. They are too much for low power cards and not enough for highpower cards. For the small price difference it makes more sense to go for a 750-850w psu to cover most requirements.

 

[Gray2233]

Is this the original bronze rated unit or the newer gold rated unit? If it's the original it's getting on a bit now and I would be replacing it anyway. You don't actually have 650w, the original had a 12v rail of 612w and the newer version has 610w. My previous setup with my 7900GRE and a 12600 non-K cpu (65w) would easily hit 500-550w when gaming so you may be cutting it close, especially if you overclock anything. With my new spec (in siggy) I am still hitting 479w and that's with a undervolt on the cpu and gpu. If you are spending around £700 on a gpu then a extra £90-100 for a quality 750w or 850w psu is worthwhile and sensible step to take.

I have always disliked 650w psu's as they sit in a sort of no mans land. They are too much for low power cards and not enough for highpower cards. For the small price difference it makes more sense to go for a 750-850w psu to cover most requirements.

It's the gold rated semi-modular version that launched a couple of years back, he mentions it in his posts. I actually built a friend a rig with the same PSU awhile back, he recently upgraded to a 7900 series card and is absolutely fine.

I don't think it'll be a problem with his specs and a 7900XT or 4070TI Super, but at worst he'll just get shutdowns under gaming load. If that happens he can buy a new PSU, if it doesn't he's saved £100.

That said, I do understand your reasoning and generally agree, but I've often ended up with 650W PSU's in the past due to finding a good deal on a quality unit or having to work with tight budget restrictions. I find that they're almost always ample for lower-high end cards such as Nvidia's X070 series and the AMD equivalents, which is generally where my upgrade focus rests anyway.