The first 5G iPhone will be launching in 2019, powered by Intel modem 8161. If everything goes correct 5G iPhones will be powered by Intel.
Android phones however have taken 5G chips from Qualcomm.
5G phones will at least provide with a speed of 1.4 GB/sec, this means it will be almost 23 times faster than a median 4G user with an approx. speed of 73mb/sec. So 5G is going to be a complete different experience especially for gamers, who take sa few hours to download the big games like Call of Duty and others, will now only take a around half an hour.