NVIDIA B300 servers retail around $350k min, crazy power/cooling requirements/etc. (bad maths) per GPU (8) is $43,750, if you can even find them (narrator: you can't) then pay for collocation etc... 9 PFLOPS dense FP4. DGX Spark: $4700, plug in anywhere, 1 PFLOP (fp4 sparse). B300 9ish PFLOP dense FP4 super expensive impossible to collocate anywhere etc. etc., $4861.11 per PFLOP. DGX Spark $4700 plug in any 15 amp outline in any house, $4700/PFLOP (but sparse). Memory is slower, so I guess use less of it/less manipulation of it... Yep, math checks out - pretraining on decentralized DGX Spark with native sparse FP4 (checks notes: yes we're using ternary weights which slot perfectly into sparse FP4 compute) should be a thing. Time to test it out...