5900X vs 5800X3D in DCS VR

[syntax88]

I got to run a little experiment yesterday.... buddy of mine is upgrading platforms and sold me his used 5800X3D for not a lot, so I decided to try it out.

Original system specs:

• ASUS ROG B550F
• 5900X (slight overclock)
• ASUS TUF 3090TI (custom overclock / water cooled)
• 64GB DDR4 @ 3600MhZ
• HP Reverb G2
• OpenComposite / OpenXR

After the multithreading update the 5900X was heaps better compared to previously, and I was happy with it, but in VR I'd get screen door effect occasionally (usually when I'm parked on the tarmac, and another plane whizzes by), there would be a lot of micro stutters that would sometimes prevent me from easily using the mouse in stressful situations, and there would be a noticeable FPS drop if I dropped down in a dense area close to the ground (which is to be expected, somewhat).

All I did was swap the CPU to 5800X3D, all else was the same - and it was a night and day difference in VR. WAAAYYYY smoother, loading times seemed to have decreased a lot, and I haven't really come across the micro stutters or screen door issues anymore.

Basically the point of this post is: if you have a 5900X or 5950X and can maybe get a 5800X3D cheap, and your primary concern is VR games..... do it.

 

BUT here's the caveat:

For VR, the 5800X3D beats the 5900X.  Hands down, no contest.  However, the 5900X does literally everything else better (in my rig anyhow).  The 5900X does in fact run all the games I tried (@1440p), with higher FPS and better 1% lows (Cyberpunk w/o ray tracing, RDR2 max settings, Jedi: Lone Survivor max settings) vs 5800X3D.  And, the 5900X definitely performs productivity + compiling tasks much more effectively - it's a massive difference on that point.  This goes in line with some of the reviews and comparisons I've seen, but for whatever reason, my system config displayed more favorable stats for the 5900X, in 2D games, at 1440p - when compared with some stats and reviews online.

So if it wasn't for DCS VR.... I probably would have stayed with the 5900X.  It's still a fantastic CPU.  For now though, specifically for DCS, I'll be rockin the 5800X3D.

Hope that helps someone make up their mind, if a similar situation would arise.

[skywalker22]

On 7/8/2023 at 2:44 PM, syntax88 said:

I got to run a little experiment yesterday.... buddy of mine is upgrading platforms and sold me his used 5800X3D for not a lot, so I decided to try it out.

Original system specs:

• ASUS ROG B550F
• 5900X (slight overclock)
• ASUS TUF 3090TI (custom overclock / water cooled)
• 64GB DDR4 @ 3600MhZ
• HP Reverb G2
• OpenComposite / OpenXR

After the multithreading update the 5900X was heaps better compared to previously, and I was happy with it, but in VR I'd get screen door effect occasionally (usually when I'm parked on the tarmac, and another plane whizzes by), there would be a lot of micro stutters that would sometimes prevent me from easily using the mouse in stressful situations, and there would be a noticeable FPS drop if I dropped down in a dense area close to the ground (which is to be expected, somewhat).

All I did was swap the CPU to 5800X3D, all else was the same - and it was a night and day difference in VR. WAAAYYYY smoother, loading times seemed to have decreased a lot, and I haven't really come across the micro stutters or screen door issues anymore.

Basically the point of this post is: if you have a 5900X or 5950X and can maybe get a 5800X3D cheap, and your primary concern is VR games..... do it.

 

BUT here's the caveat:

For VR, the 5800X3D beats the 5900X.  Hands down, no contest.  However, the 5900X does literally everything else better (in my rig anyhow).  The 5900X does in fact run all the games I tried (@1440p), with higher FPS and better 1% lows (Cyberpunk w/o ray tracing, RDR2 max settings, Jedi: Lone Survivor max settings) vs 5800X3D.  And, the 5900X definitely performs productivity + compiling tasks much more effectively - it's a massive difference on that point.  This goes in line with some of the reviews and comparisons I've seen, but for whatever reason, my system config displayed more favorable stats for the 5900X, in 2D games, at 1440p - when compared with some stats and reviews online.

So if it wasn't for DCS VR.... I probably would have stayed with the 5900X.  It's still a fantastic CPU.  For now though, specifically for DCS, I'll be rockin the 5800X3D.

Hope that helps someone make up their mind, if a similar situation would arise.

Did you maybe used any stats app, like Riva Tuner (part of MSI Afterburner app), to actually see the fps? If you didn't, can you do it again? Would be cool to see the actual different in fps between these 2 CPUs.

[Qcumber]

On 7/8/2023 at 1:44 PM, syntax88 said:

All I did was swap the CPU to 5800X3D, all else was the same - and it was a night and day difference in VR. WAAAYYYY smoother, loading times seemed to have decreased a lot, and I haven't really come across the micro stutters or screen door issues anymore.

Sorry for reanimating this thread. I am getting microstutters with a 5600x and am thinking about upgrading to a 5800x3d. Are you still finding that you get a smoother experience? Can you also clarify "screen door"? Do you mean a black border?

[Motomouse]

I do not get micorostutters with the 5600. The 5600 is cooler, quieter and much cheaper than the 58003d. I am never CPU locked with my 3080 and the 5600, so no need to upgrade.

Edited October 11, 2023 by Motomouse

[mrsylvestre]

I went from a 5600X to a 5800x3d one and half year ago, but only because I could recycle the 5600X to another PC for the kids. Yes, there is some performance improvement in DCS so you can push the graphics settings just a bit more and fly missions with more active units while avoiding immersion-ruining (to me) stutters. But this performance comes at a cost. The 5800x3d is much more picky about cooling than the 5600X. I had to upgrade to a top-of-the line Noctua cooler to keep it under control. It undervolts well, which helps, but you also need to reduce its PPT/TDC/EDC from the default values unless you are prepared to run all case and cooler fans to a level that your will seat near a 747 on takeoff, which negates some of its advantages. It's also pretty fragile, with its delicate cache on top of the rest of the CPU. One bad move with a BIOS setting (inadvertent overvolting even so limited) or temperature excursion to 105°C can toast it. I had one die on the day of installation without trying to push it. I got a replacement for free, but YMMV. Because of the stacked cache/CPU design, a water cooling system will not alleviate much the issue, if any (the heat from the CPU still needs to diffuse through the cache, it is more an issue of power density, hotspot and internal thermal resistance than of raw heat dissipation capacity).

Today, even though Zen 3 prices have dropped, I think I would be looking at Zen 4 CPUs and bite the bullet for a new MB and RAM, or even wait for the next generation. Having a wireless VR headset, my priority would be on getting the most capable GPU for rendering and encoding (even though I am not prepared to pay 4090 prices, so I'll wait for the next generation too and enjoy what I have for what it is - when you cease looking for the limitations in the rendering and focus on flying/fighting instead, your imagination can sometimes compensate for the lack of pixels ).

[Dragon1-1]

I'm using a 5800X3D with a 240mm Corsair AIO water cooler, and while it does run hot for such a locked down CPU, it doesn't have any problems once the cooler was tuned properly. My previous 120mm was inadequate, but that's a given at this TDP level. But you're right, heat management is paramount on this particular CPU. For what it's worth, it's a specialized CPU design that only really does one thing well, but it does it very well. 

[Motomouse]

On 10/11/2023 at 3:48 PM, Motomouse said:

I do not get micorostutters with the 5600. The 5600 is cooler, quieter and much cheaper than the 58003d. I am never CPU locked with my 3080 and the 5600, so no need to upgrade.

 

I have to add, this is true while I am using OpenXR Turbo Mode in VR. Without Turbo Mode I am CPU bound in VR.

Edited October 12, 2023 by Motomouse

[Qcumber]

18 hours ago, mrsylvestre said:

when you cease looking for the limitations in the rendering and focus on flying/fighting instead, your imagination can sometimes compensate for the lack of pixels

It's not the pixels for me. Its the stutters. All the reviews I have read says the 5800x3d reduces latency. I'm hoping this will work for me. 

[mrsylvestre]

With the big cache of X3D you do get improvement with regards to stuttering, that's for sure. Just be prepared to also upgrade your cooling solution if needed. I had one that was overkill for my 5600X but proved to be marginal with the 5800X3D.