o7

Morning ladies and gents,

I came across this video today which detailed how a bug in Nvidia’s drivers are nerfing Intel+Nvidia systems a substantial amount. If you’re interested into squeezing a little more out of your Intel+Nvidia rigs. I’ll leave the video here. I hope it helps someone out!

Edit : Reading in the comments, it looks as if people running AMD CPU’s are suffering from the same problem and getting substantial boosts after the fix as well!

o7

Regards,

von Freden

 

A lot of this is over my head, but it looks really interesting.

People will need to tell me if they have any luck with this.

22 hours ago, Klaiber said:

A lot of this is over my head, but it looks really interesting

o7

Essentially if you’re running a 30xx-50xx Nvidia graphics card. Their driver doesn’t enable resizable BAR even if you have it enabled in your systems BIOS.

(Resizable BAR (Base Address Register) is a feature that allows the CPU to access the entire graphics card memory at once, potentially improving game performance by increasing frame rates. It is supported by NVIDIA's RTX 30 and 40 series graphics cards, but its effectiveness can vary by game and system configuration)

In short,

Step 1 -  download the tool Nvidia Profile Inspector from github. ( https://github.com/Orbmu2k/nvidiaProfileInspector/releases )  Open it, scroll down to section 5 and to the entry called rBAR - Enable click on it, and switch it from Disable to Enable. 

Step 2 - 2 settings down an entry called rBAR-Options, click on it, change it from 0x00000000 to 0x00000001

Step 3 - 1 setting down called rBAR Size Limit, click on it, and set it to 0x0000000400000000 

After you’ve made these changes, look at the top right of the program and you should see a green apply changes button. Click on that to apply changes, give your system a reboot, and viola, you should get a substantial increase to your systems GPU performance. If you want to know how much, do a 3D Mark run before making changes, then do a test again after your changes and you should see a substantial increase in your score.

This isn’t an over lock or anything so there isn’t any risk in applying these changes. It’s essentially just turns on an option called resizable BAR you most likely already have turned on in your BIOS ( if you don’t, and have a 30xx-50xx series Nvidia graphics card, you should go to your BIOS and make sure its turned on there too)

Hope this helps!

o7

Regards,

von Freden

 

 

 

 

 

 

 

 

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