If you can get 350k dps with a wizard, you must be filthy rich and have close or max paragon. I run a wizard with Black weapon dealing 1.1k damage with +150 crit damage(including socket), triumvirate (250 average damage), mempo with 262 int and +9 atk speed, tal rasha's relentless pursuit with 200 int and +9 atk speed, the witching hour with 170 int +41 crit damage +9 atk speed, inna's temp with 200 int(with sockets) +9 atk speed +1 crit chance, ice climbers with 310 int(with socket), vile ward with 270 int, amulet with +99 crit damage +8.5 crit chance and 100 int, lacuni prowlers with 100 int +9 atk speed and +5 crit chance, tasker and theo with 174 int(with socket), +9 atk speed and +9.5 crit chance, and finally two rings the wailing host and littany of the undaunted both give me over 300 int +6 atk speed +60 crit damage and +9 crit chance.
With all this equipment I deal 206k base dps with paragon level 10 and an atk speed of 2.27. I don't know how you hit 350k dps unless you have top gear and 100 paragon.