December of 2021 computer build update with 4090?

[Jody Stout]

Just a quick question. I’m kinda up in the air about it.
I have a 5950x with 128 gigs of DDR 4 3600 ram
With a 6900 XT.
Been really happy until I got Pimax crystal light this past Christmas now she’s struggling
I have Asus Tuf OC 4090.
Should I switch out graphics cards? Would I see a huge improvement or would the CPU and RAM be a bottleneck?
As a side note. I actually bought a case,radiators all the fittings and
distro. plate several years ago when I got the 4090 to build another system. I’ve been happy up until VR came along

 

[GroG79]

Sure it is not a bad usb cable? Using wifi?
The 4090 will be more powerful but the 6900xt is not sloth and should be able to let you play just fine

Did you bother resetting your ingame settings? How are you controlling the Pimax and what settings are you running?

 

[Jody Stout]

Sure it is not a bad usb cable? Using wifi?
The 4090 will be more powerful but the 6900xt is not sloth and should be able to let you play just fine

Did you bother resetting your ingame settings? How are you controlling the Pimax and what settings are you running?

Overall pretty happy. The crystal light is hardwired to the PC.
Had to basically use medium settings across the board also in game
Just 2 days ago I switched to Pimax XR and Open composite done away with Steam VR. So far really happy with that switch.

 

[DeckerSolo]

Just a quick question. I’m kinda up in the air about it.
I have a 5950x with 128 gigs of DDR 4 3600 ram
With a 6900 XT.
Been really happy until I got Pimax crystal light this past Christmas now she’s struggling
I have Asus Tuf OC 4090.
Should I switch out graphics cards? Would I see a huge improvement or would the CPU and RAM be a bottleneck?
As a side note. I actually bought a case,radiators all the fittings and
distro. plate several years ago when I got the 4090 to build another system. I’ve been happy up until VR came along

Its a no brainer that the 4090 will give you better performance than the 6900 XT.
I use a 4090 with VR and suggest you use MSI Afterburner to tweek the GPU settings to give you the best performance for your system.
I slightly undervolt my 4090 to keep temperaures down and push the GPU's memory clock speed up by 1000MHz
5950x is a good CPU, I use one on my spare system, and shoudn't be much of a bottleneck.
128GB RAM is overkill for ED, I believe 2 sticks of RAM with an AMD CPU system gives slightly better performance than 4 sticks
Good choice in using Open Composite rather than Steam VR in my opinion.

 

[aXeL]

IMO, a good rule of thumb for VR is that the GPU power needed is out of my reach and will remain out of my reach no matter how long a reach I develop. No matter which GPU I've stuck in, I turn up the settings a 'bit' and then performance is right back where it was. 4090 is going to be better than a 6900XT but, again IMO, you're not going to go 'oh wow' for the money you spend. More like, 'Yeah ok, it's better. Ok, on to the next project'. I'm still on my old 3090 and I'm not even interested in a 5090. Waste of money for the improvement.

 

[Jody Stout]

Its a no brainer that the 4090 will give you better performance than the 6900 XT.
I use a 4090 with VR and suggest you use MSI Afterburner to tweek the GPU settings to give you the best performance for your system.
I slightly undervolt my 4090 to keep temperaures down and push the GPU's memory clock speed up by 1000MHz
5950x is a good CPU, I use one on my spare system, and shoudn't be much of a bottleneck.
128GB RAM is overkill for ED, I believe 2 sticks of RAM with an AMD CPU system gives slightly better performance than 4 sticks
Good choice in using Open Composite rather than Steam VR in my opinion.

Thank you. I have MSI Afterburner installed on my computer. I was always afraid to Tweek settings I didn’t really understand. I just use it as a temperature monitor. I already have a water block for the 4090 my current system is all water cooled.

 

[Jody Stout]

IMO, a good rule of thumb for VR is that the GPU power needed is out of my reach and will remain out of my reach no matter how long a reach I develop. No matter which GPU I've stuck in, I turn up the settings a 'bit' and then performance is right back where it was. 4090 is going to be better than a 6900XT but, again IMO, you're not going to go 'oh wow' for the money you spend. More like, 'Yeah ok, it's better. Ok, on to the next project'. I'm still on my old 3090 and I'm not even interested in a 5090. Waste of money for the improvement.

Lol. I understand that. To be honest I’m perfectly happy with how the game runs and looks now in medium. The other guy in me wants to know what it looks like in High settings also already have the 4090 in the gun safe. Actually have several but that’s another story

 

[aXeL]

I saw a 5090 in stock in Overclockers just now and put it in my shopping basket. £2,700 and I can have for Sunday

 

[NickM67]

Its a no brainer that the 4090 will give you better performance than the 6900 XT.
I use a 4090 with VR and suggest you use MSI Afterburner to tweek the GPU settings to give you the best performance for your system.
I slightly undervolt my 4090 to keep temperaures down and push the GPU's memory clock speed up by 1000MHz
5950x is a good CPU, I use one on my spare system, and shoudn't be much of a bottleneck.
128GB RAM is overkill for ED, I believe 2 sticks of RAM with an AMD CPU system gives slightly better performance than 4 sticks
Good choice in using Open Composite rather than Steam VR in my opinion.

5950x is a quad channel CPU. Two sticks cuts it's memory bandwidth in half. And...overkill is ALMOST enough in my book.
Coming from someone running 128 in quad channel with dual Xeon E5 2667's (8 core 16 thread each)

 

[Morbad]

Would I see a huge improvement or would the CPU and RAM be a bottleneck?

Both.

5950x is a quad channel CPU. Two sticks cuts it's memory bandwidth in half.

You can connect more than one DIMM per channel, board permitting, but the socket, CPU, and the PHY/IMC, dictate the number of memory channels, which is a maximum of two on the AM4 platform.

 

[DeckerSolo]

5950x is a quad channel CPU. Two sticks cuts it's memory bandwidth in half. And...overkill is ALMOST enough in my book.
Coming from someone running 128 in quad channel with dual Xeon E5 2667's (8 core 16 thread each)

No, a 5950x is a dual channel CPU.
Your motherboard may support 4 sticks of RAM ie 2 stick per channel, but AM4 is strictly dual channel
4 sticks of RAM can put more stress of the memory controller potentially limiting max achieviable RAM frequency or overclocking headroom

 

[NickM67]

No, a 5950x is a dual channel CPU.
Your motherboard may support 4 sticks of RAM ie 2 stick per channel, but AM4 is strictly dual channel
4 sticks of RAM can put more stress of the memory controller potentially limiting max achieviable RAM frequency or overclocking headroom

I must be mixed up with the old Intel i7 5950x. Sorry!

 

[DjVortex]

With a 6900 XT.
I have Asus Tuf OC 4090.
Should I switch out graphics cards? Would I see a huge improvement or would the CPU and RAM be a bottleneck?

The Radeon RX 6900 XT has a G3D score of 26727.
The GeForce RTX 4090 has a G3D score of 38301.

While these scores do not necessarily completely correlate to framerate (it depends a lot on the particular game), they probably still serve as good approximations.

This means that the latter is about 1.43 times, ie. about 43% faster than the former. In terms of framerate that would mean that a game that runs at 60 FPS with the former would, roughly, run at about 85 FPS in the latter, to get a ballpark estimate.

In this sense there would be a somewhat noticeable improvement, although not a mind-blowing one.

Note that TDP also increases from 300W to 450W, if that's a concern.

I doubt that the CPU or RAM would become a bottleneck.