Confusing FPS counter

[steep dew]

Currently I'm having this setup:

GPU1 (render): rtx3070
GPU2(lsfg): intel b570
MB: msi x299 pro
CPU: i9 10900x
Monitor: 2k 180hz
Win11 24h2

In games when I activate afterburner to show me FPS and other stats, I get over 150fps. After that, I activate LSFG on second GPU, LSFG fps counter shows ~130/~260 fps. Msi afterburner fps does not changes and staying over 150fps.

In cases where games are intense and real fps (from msi afterburner stats) goes under ~130fps, then msi afterburner fps counter and lsfg fps counter are equal.

Does that mean that second gpu cannot handle more then ~130fps (real ones)?

[spark cairn]

Guessing that's the max the b570 can do

If it's at 99% usage when this happens it's a dead giveaway

[steep dew]

Yes, gpu load on b570 stay over 90-95%

[spark cairn]

Then that's it

[steep dew]

That's what I thought but I wanted to check with you guys

[quartz scaffold]

Just to confirm: Your 2nd GPU is in slot PCI_E3 on your mobo?

[steep dew]

No its connected on pci_e1. Render gpu is connected on pci_e3

[steep dew]

But both pci_e1 and pci_e3 slots are full pcie 3.0 x16

[pliant flax]

Both cannot be full x16 on the usual consumer motherboards

Confirm the PCIe speeds with GPU-Z

[spark cairn]

It's X299

So it can be

[pliant flax]

Yeah, Idk why I couldn't read it 💀

[sleek glacier]

Send gpu-z screenshots maybe Resizable Bar is disabled = huge decrease for ARC B570

z299 is a 8 gen platform, anything below 10 gen is not supported by arc officially. you might need bios modding for rebar support

[steep dew]

This is the GPU-Z screenshots for my gpu-s. I upgraded BIOS to latest version where ReBar is option

[quartz scaffold]

I agree with this

[steep dew]

actual frames in from RTX3070 shown in right corner (167FPS) and LSFG is shown on left corner (119/238).

[steep dew]

Seems like it, but according to LSFG dual gpu spreadsheet, it should push some more fps. Guess thats dead-end with this GPU

[autumn vector]

Enable LSFG performance mode and lower flow scale to around 75%

See if it helps

But just know that using framegen above your refresh rate (180hz in this case) is generally not going to look any better

If you're already getting almost your refresh rate without LSFG, then don't use it

[steep dew]

Enabling performance mode and/or lowering flow scale does help. With only performance mode on and flow scale of 100%, LSFG FPS counter goes roughly to 140/280. But in my experience, lowering flow scale and/or activating performance mode give me more actifacts.
My main purpose is to double FPS when it drops below ~80-90 in intense gaming situation. Then the LSFG does the magic.

[quartz scaffold]

so then that confirms it. If you have to lower flow rate or enable performance mode and things improve, your 2nd card is at the limits of what it can do. Remember that the higher the frame rate, the less time your 2nd card has to process things. What are your normal settings in LSFG, btw?

[steep dew]

This are my LSFG settings

[quartz scaffold]

Ok, so try enabling adaptive mode and setting the target to 180hz. Set your flow rate to 80 or 90% and give that a shot and report back. Performance mode will indeed show a lot more artifacts, but slightly lowering flow rate is a bit more forgiving.
BTW recall that if your rig is already pushing out 150 fps natively, for example, then your intel card is being given very little time to process the interpolated next frame.
Meaning: it is better for your game to run at 60 fps and you Framegen up to 180 than it is to take 120 fps and go to 240, for example.

[steep dew]

When I lock rendered fps to 60, then I can push multiplier even above X6 and use adaptive frame to 180fps. For me anything above X2 is generating with too much artifacts. But with current settings (uncapped fps with X2 multiplier) Im really satisfied.