Question Underperforming RTX 3060 Ti vs RTX 3070 Laptop, 3D GPU rendering.

[pesqwalli]

Hello,

Kindly requesting help to solve a nagging underperformance issue with a brand new MSI RTX 3060 Ti Ventus 2x card.

The 3060 Ti is rendering Arnold C4D GPU frames about 60% slower than the same scene on an ASUS Zephyrus G15 with an RTX 3070 Laptop GPU onboard. All Cinema4d settings the same.

There aren't any Arnold benchmarks, so I tried both OctaneBench and Passmark, and each test scored the 3060 Ti higher by about 5%.

The temps on the 3060 Ti while using 100% GPU while rendering are topping out at about 55 degrees,, while the 3070 Laptop is peaking around 74% (I know apples to oranges for temps)

So I guess I'm wondering where the bottleneck is - the system with the 3060 Ti is about 3 years older (Threadripper 1920x, 3.5, 64GB RAM), but it should still be at least as fast as the laptop renders, no?

Any suggestions on where to look first are greatly appreciated, P.

 

[rgd1101]

what the vram usage?

 

[pesqwalli]

both the 3060 Ti and 3070 Laptop have 8GB GDDR6

 

[pesqwalli]

GPU-Z readings:
3976 MB Mem used during render on laptop (3070)
3333 MB Mem used during render on tower (3060Ti)

 

[pesqwalli]

I discovered that my BIOS was an older version (late 2017), before MSI unlocked the resizable BAR for nividia 30-series cards - does anyone know if it's worth it to update my BIOS just for this feature - will enabling Resizable BAR make that much of a performance difference with a 3060 Ti? thanks