I'd say since Cable vol.2 #100-107. Cable's techno-organic virus was purged from his body which permitted his latent unfettered psionic powers to manifest. Throughout the Soldier X ( Soldier X vol.1 #1-12 ) series he'd displayed various feats that previously caused a strain on his body and allowed the virus to spread. These feats ranged from sub-atomic manipulation, energy projection, advanced telepathic and telekinetic powers and so forth.
Unfortunately during Soldier X he was struggling to control the surge of power he recently acquired and wasn't able to more accurately use them until Cable & Deadpool when he was coined as " God-Like " Cable. His powers began to manifest themselves as fervently as Nathan Grey's. Though because he had more formal training via The Askani Sisterhood as well as Jean Grey & Xavier he was able to focus them. He was able to cure various infected populations the world over with little more than a concious though. He was in constant communication with every living being on earth while continuously averting wars and so forth telepathically and telekientically. Not to mention he held up a vast Station formerly known as Greymalkin aloft with his will. And there was his battle with the Surfer. For all purposes the Surfer is more durable than even the Green Lantern and Cable was able to hold his own while attempting to avoid conflict with Radd. Both were reconstructing and reconstructing their environment on the sub-atomic level without a concious though. Cable would have given Jordan a run for his money.