Upgrading from intel to Ryzen

Dragsham

Dragsham
Running a rig in VR for elite is very demanding on hardware. Heat, reprojection etc.
Atm I'm at about 45 to 60 fps at 4k lenses (headset) and 4k monitor.
That's on an overclocked 4.7ghz 9900k 390z chipset. With a 3090fe.
I've upgraded (arrives tomorrow sooooooo excited!) To a Ryzen 7800x3d 5.0ghz
B650 plus chipset. Same gpu.
Without changing any ingame settings can l expect a rise in fps?
What's the heat situation (currently about 70°c)?
I will happily follow up as regards these questions tomorrow once installed assuming no problems.

o7

No not bothered with ddr5 ram should l? Current ram is 4400mhz ddr4 barracuda 4x16gig sticks.
Psu is a modular 1200w.
 
Last edited:

GroG79

G

Morbad

Morbad
Dragsham said:
Without changing any ingame settings can l expect a rise in fps?
Click to expand...

Everywhere you aren't completely GPU limited, yes. Probably a fair increase around surface settlements especially.

Dragsham said:
What's the heat situation (currently about 70°c)?
Click to expand...

Much less heat, same or higher temperature.

Without any additional tuning, the CPU will generally be thermally limited while boosting and won't dial back until ~90C.

Total heat production is significantly less on the 7800X3D, but the thermal density and thermal resistance are higher.

GroG79 said:
The ryzen can use more power compared to the 9900k. However for a given performance power usage should be much lower.
Click to expand...

The rated TDP figures are almost completely meaningless. Except at idle, where Raphael has a slightly higher power floor due to the chiplet topology a 7800X3D will almost never be using more power than a 9900K in the same tasks and the gap generally widens the higher the load.

www.anandtech.com

The Intel 9th Gen Review: Core i9-9900K, Core i7-9700K and Core i5-9600K Tested

www.anandtech.com www.anandtech.com
www.tomshardware.com

Intel Core i9-9900K 9th Gen CPU Review: Fastest Gaming Processor Ever

More cores, higher frequencies, and performance-boosting Solder TIM place the Core i9-9900K ahead of the pack. Just be prepared to pay for it.
www.tomshardware.com www.tomshardware.com

www.anandtech.com

The AMD Ryzen 7 7800X3D Review: A Simpler Slice of V-Cache For Gaming

www.anandtech.com www.anandtech.com
www.tomshardware.com

AMD Ryzen 7 7800X3D Review: New Gaming Champ Beats Pricier CPUs

Sub-$450 CPU is even faster for gaming than Ryzen 9 7950X3D.
www.tomshardware.com www.tomshardware.com
 

Pville_Piper

Pville_Piper
When I upgraded from an I9-10900f my framerate around settlements pretty much doubled, about a 30% increase in the stations and concourse. That's with the RTX 3080.
 

Dragsham

Dragsham
Kk I've fired it up after a week of DIY, unable to touch the pc. I'll post my findings soon as I get the rig going & optimised.
The old setup had reprojection at about 40-45% which though not good was playable. Steam VR set at 46% 100% ingame.
Cpu was at about 11 to 15% usage 60fps max
Gpu was 70 to 80% (sometimes 90%)
Overall temp maxed at 73°C.
 

varonica

varonica
Dragsham said:
Soz I meant 7700x
Pants!
Yup the supplier has rectified it...chips on its way
Click to expand...

Yeah I recently got a new PC with a 7800x3d, it's a big difference, specially if you paid for the X3d and only got the 7700x, I should think they would be pretty fast about correcting that mistake!
 

Dragsham

Dragsham
I was a tad annoyed.
My phone parlance got heated. He even claimed if I flashed the bios it would rectify it. Which I dutifully did and no its still pants
 

varonica

varonica
Dragsham said:
I was a tad annoyed.
My phone parlance got heated. He even claimed if I flashed the bios it would rectify it. Which I dutifully did and no its still pants
Click to expand...

Oh lol, that's not how it works, the bios won't recognize one CPU as another due to old bios, more likely it simply wouldn't boot. Many a time I have had to put an old CPU into a motherboard to update the bios to get the new unsupported CPU to boot.
 

Morbad

Morbad
Always read the markings on the CPU and inspect it for tampering before installing it. Bonus points for recording the date and stepping codes to compare on forums to see if any patterns emerge as far as overclock/undervoltability goes.

varonica said:
Oh lol, that's not how it works, the bios won't recognize one CPU as another due to old bios
Click to expand...

Generally true.

varonica said:
more likely it simply wouldn't boot. Many a time I have had to put an old CPU into a motherboard to update the bios to get the new unsupported CPU to boot.
Click to expand...

Same underlying architecture will usually POST fine even if the model isn't supported in firmware. Some stuff won't work correctly, but the system will usually function.

I've run both 5800X3D and 7800X3D parts with microcode/AGESA revisions released long before the parts were announced. Boost/PBO didn't function correctly, but since the IODs are identical to the earlier parts, the cores use the same MSRs as the non-X Vermeer/Raphael parts, and cache is transparent to firmware/software, pretty much everything other than the core clock frequences was normal.

I strongly suspect there is a cut-off somewhere (e.g. I doubt Zen 1 era firmware would allow my 5800X3D to POST in an old X370 board that's never been updated), but this doesn't exist on AM5, yet, as there is currently only one archetectural generation of CPU available for the platform. Not sure if Granite Ridge (releasing next month) will function at a basic level, or just fail to start, on boards that haven't been updated yet.
 

Dragsham

Dragsham
Kk installed win11 Pro. And various apps to play with this new build. Tweaked the bios which made a difference. Afterburner tweeks too.
Yeah l got this dodgy cpu but even with it running superposition bench in 4k I got 170fps max with just 52°C heat 99% gpu load. I let it run the 17 tests over n over to make sure it wasn't a one off.
BUT cannot get my hp g2 reverb fired up! The wmr portal doesn't see it.
I updated the chipset showing no conflicts at all in devices list. Updated windoze 11 too. Also the onboard audio and other stuff from Asus website.
Board is a asus prime B650 plus.
64 gig ddr5 6000mhz ram which l did slow down but made no difference.
Cannot get that sodding headset to fire up.
Worked perfectly before
 

Morbad

Morbad
Dragsham said:
BUT cannot get my hp g2 reverb fired up! The wmr portal doesn't see it.
Click to expand...

Windows Mixed Reality has been depreciated and the 24H2 update is going to remove it. Officially, WMR is only supported up to 22H2 and you likely have 23H2, which could cause some issues.

learn.microsoft.com

Before you start - Enthusiast Guide

Learn how to make sure your PC is compatible and ready for various Windows Mixed Reality application experiences.
learn.microsoft.com
learn.microsoft.com

Deprecated features in the Windows client - What's new in Windows

Review the list of features that Microsoft is no longer actively developing in Windows 10 and Windows 11.
learn.microsoft.com

If you plan on using WMR for a while, you're probably best off with Windows 10.

Dragsham said:
Board is a asus prime B650 plus.
Click to expand...

Certain USB redrivers and hubs can cause issues with some peripherals, including VR headsets. Unfortunately ASUS doesn't have a block diagram for this board in it's manual so I can't tell what USB ports are connected to what. Ideally, you want a USB port that is directly connected to the CPU with no hub. You may need to do some trial and error with device manager opened and set to show "devices by connection". Something like USB Tree Viewer can also help.

Also, I wouldn't install anything other than firmware updates from ASUS' site. Best to go straight to the component OEM (e.g. AMD, Realtek, etc), if possible, for drivers.
 

SergMx

SergMx
varonica said:
Oh lol, that's not how it works, the bios won't recognize one CPU as another due to old bios, more likely it simply wouldn't boot. Many a time I have had to put an old CPU into a motherboard to update the bios to get the new unsupported CPU to boot.
Click to expand...
It was before, I even had to pull the bios out of the motherboard and flash it with a programmer because I didn't have the right processor on hand.
Now all modern boards can load the bios without a processor, a special usb port on the motherboard.
 

Dragsham

Dragsham
Well I fiddled about for hours. Having finally got the right cpu.
The usb problem was because asus hadn't enabled the serial bus correctly. I gave up on the USBc and used a USB 3.0 adapter. Headset fired up finally!
Windows 11 Pro too.
So In I went. Lost all my binds that was a minor problem hehe.
Before I was getting 45 to 55 fps with 40 to 45% reprojection.
Now I'm getting 85 to 90 fps with just 5 to 10% reprojection.
So the upgrade was well worth it.
Runs as hot as the old pc but rarely goes past 72°C.
Won't bother overclocking I'll wait for a 5090 hehe.
 
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