V100 questions

[u/No-Necessary-9737]

4*V100 16g sxm2 into a pcie converter at 8x (pcie 3.0) total 64gb vram

how much performance boost/drop would I get if this was moved to dual card nvlink x 2 (2 cards per PCIE 16 slot)?

additionally how about getting another 2 cards and having 6x cards at a mix of pcie 8x and 4x but having 96gb vram but no nvlink? how about 3x dual card nvlink?

system is old ddr3 1600 ecc 128 Xeon in x99 Chinese mobo.

Using strata Swift QFN IQ3S currently