(Bloomberg) -- Advanced Micro Devices Inc. is falling further behind Nvidia Corp. in its technological capabilities, a fact that could continue to pressure the stock, according to Jefferies, which downgraded the chipmaker to hold.Most Read from BloombergWhy Did the Government Declare War on My Adorable Tiny Truck?How SUVs Are Making Traffic WorseTrump Slashed International Aid. Geneva Is Feeling the Impact.These US Bridges Face High Risk of Catastrophic Ship StrikesAffordable Housing Developers