(Image credit: Intel) Computex 2026 hasn't even begun yet, and Intel is already rolling out the big guns. Its long-awaited Panther Lake-based handheld gaming PC processors have just been officially announced, and they're called the Intel Arc G3 and the Intel Arc G3 Extreme . We've long mooted the idea that Panther Lake 's efficiency and overall performance seem perfectly suited to a handheld chip , and after much teasing, the new processors look designed to do exactly that. Intel says the new chips feature "up to Intel Arc B390 graphics" (that'll be the Extreme variant, then) and two P-Cores, eight E-cores, and four LPE-cores worth of processing grunt.…