The Radeon RX 7900 XT(X) Owners Thread.

[Gilbert Coquard]

My son purchased a RX Sapphire Nitro+ 7900 XT and installed it yesterday. He's not getting anywhere near the kinda fps he thought he'd be getting. low 200's on Fortnite performance mode. Not much better than his 1080 he says.
I get a lot more fps with my 3070 on a similar system, but mine has a Ryzen 5 5600.

I wonder if it's a CPU Bottleneck problem? He has a Ryzen 5 3600, B450 Gigabyte Aorus Pro Motherboard, 16GB DDR4 3200mhz Ram, Corsair RM750w PSU.

 

[Emlyn_Dewar]

Definitely needs a better CPU to go with a quality GPU like the 7900XT! 5700X3D maybe?

 

[spoon]

I would say RAM could also go up to 3600/3800 with CL16 minimum to help in those CPU bound situations.

Wasn't B450 chipset PCI-E 3.0 only?

@Gilbert Coquard what resolution does your son play at? There is only so much you can do at 1080p..

 

[Gilbert Coquard]

Definitely needs a better CPU to go with a quality GPU like the 7900XT! 5700X3D maybe?

Yeah he was looking at a Ryzen 7 5800X3D, and now he's saying he's going to go for a 5900x instead. Saying it's a similar price right now.
I've tried telling him it'll be overkill, and a 5800X3D or even the 5700X3D should be more than enough.

I would say RAM could also go up to 3600/3800 with CL16 minimum to help in those CPU bound situations.

Wasn't B450 chipset PCI-E 3.0 only?

@Gilbert Coquard what resolution does your son play at? There is only so much you can do at 1080p..

His motherboard supports 3600mhz, so that's a possiblity. and yeah it's PCI-E 3.0, only. I'm not sure if running a 4.0 on a 3.0 makes a huge difference?
He plays Fortnite on 1080p. Everything on low to get as many fps as possible.

I've been trying different things to see if it's a problem with settings. There was a bios update so I done that, and also enabled resizable bar in the bios.
I used DDU to remove all traces of Nvidia drivers, and installed the AMD driver only after trying full install and minimal install.

 

[Emlyn_Dewar]

He'd have a better gaming experience with the X3D chips, over the 5900x.

 

[JediFragger]

Yeah he was looking at a Ryzen 7 5800X3D, and now he's saying he's going to go for a 5900x instead. Saying it's a similar price right now.

Do NOT let him buy the 5900X over an X3D chip, infinitely worse esp in the longer term!!

 

[eeii]

He'd have a better gaming experience with the X3D chips, over the 5900x.

This. The X3D chips will be much better. Specifically for the 1% lows.

 

[Kirby Wurm]

This. The X3D chips will be much better. Specifically for the 1% lows.

Absolutely, I made the mistake of getting a 5900X before the X3D was released and really didn't utilise the extra cores enough to justify having paid more.

I upgraded to the 5800X3D from the that just over a year ago and performance was much improved in so many scenarios.

If you can get him some faster RAM then all the better too; while tuning my kit up to 3800MHz/CL14 I saw surprisingly large jumps in speed.

 

[Simon D]

This. The X3D chips will be much better. Specifically for the 1% lows.

If he only plays games this chip will be better for him, have you looked into overclocking his memory to see if that helps. But it does depend on the CPU how far you can push the memory timings.

 

[gpuerrilla]

He plays Fortnite on 1080p. Everything on low to get as many fps as possible.

But what is his native display res?

 

[wookiee87]

My son purchased a RX Sapphire Nitro+ 7900 XT and installed it yesterday. He's not getting anywhere near the kinda fps he thought he'd be getting. low 200's on Fortnite performance mode. Not much better than his 1080 he says.
I get a lot more fps with my 3070 on a similar system, but mine has a Ryzen 5 5600.

I wonder if it's a CPU Bottleneck problem? He has a Ryzen 5 3600, B450 Gigabyte Aorus Pro Motherboard, 16GB DDR4 3200mhz Ram, Corsair RM750w PSU.

make sure he uses 2 pcie power cables from the psu to the new card, using a pigtale cable can cause issues like weird fps, most gpu manufactures recommend 2 cables and aviod pigtails unless the gpu is sub 200w.

would be intresting to see if rebar (above 4g decoding) is enabled in the bios, being a older b450 it should have the option, if its not enabled that will be a factor why the newer card isnt any faster than the old card.

 

[Gilbert Coquard]

Thanks everyone, I really appreciate your input. I've showed him the replies, and he's going to go with a 5800X3D, and see how it goes. If he has to he'll change to a B550 or X570 with better ram.

His monitor is a QHD Alienware 280hz, and the GPU takes 3 pcie power cables. I have each pcie power cable attached to the Corsair RM750 separately. I also have rebar enabled in the bios. I'd never heard about it before until it was mentioned in a YT video.
His 3Dmark score was 18265

 

[gpuerrilla]

His monitor is a QHD Alienware 280hz.

Can you try putting it on native and see if the GPU takes more of the stress giving his cpu a chance? Fortnite fps should still be high but the 3600 will be struggling at 1080p.

 

[Gilbert Coquard]

Can you try putting it on native and see if the GPU takes more of the stress giving his cpu a chance? Fortnite fps should still be high but the 3600 will be struggling at 1080p.

Do you mean run Fortnite in 1440p resolution rather than 1920x1080?

 

[steve5424]

Do you mean run Fortnite in 1440p resolution rather than 1920x1080?

Yes as that's the native resolution of the monitor and it will then make the GPU take on more of the work, easing the strain on the CPU.

 

[Gilbert Coquard]

He just tried that, and it was high 200's, but when he went into a town it dropped to high 100's low 200's.

 

[steve5424]

Definitely sounds like the CPU is bottlenecking performance. If I currently had the game installed I would have loaded it up to see what my setup gets on the same settings. I have a 7900XT also though the rest of my specs are a lot higher than your sons

 

[gpuerrilla]

Yep I have a 3600 too and its on its limit. My monitor goes to 240hz but I play fortnite in the 190s perfectly fine at 1440p. If I try taking settings too low then the cpu gets hammered and the 1% lows are not worth it. It is absolutely holding the GPU back.

 

[docsonic]

Also worth making sure that adrenaline is up to date & configured correctly ie: set to a default profile for testing.

 

[J1nxy]

Going to have a try of a 7900 XTX Nitro+ after the Hellhound went back. If this is no good then probably end up with an Nvidia card. Mainly play Le Mans Ultimate, AMS2 and a couple of others at 4k, so RT performance isn't exactly important.