16gb VRAM allocation cap for Cuckatoo 32

[jeff-k-lee]

I am mining Grin on my 7900xtx (the most profitable crypto right now), and I see the selected algorithm is "Cuckatoo 32-16G".
I also noticed the GPU allocates and uses only 16gb of VRAM when mining.

lolMiner reports a fidelity of 0.75, thus the pool sees only 75% of theoretical hashrate on their side.
I am wondering if 7900xtx and other GPUs with bigger than 16gb VRAM will perform better with Mimblewimble algorithms if all their available VRAM is allocated?

I understand when Beam, Grin cryptos first appeared, it was a rarity for any GPU to have >16gb of VRAM.

[nono71x]

hello I have the same problem, On 6800xt 16g and 6700xt 12g I am missing 30% of hash. Same, I thought cool, it's the most profitable for my cards, but not at all.... On AMD we have no choice, so help me ^^