IBM says that, compared to commercial 10nm chips (presumably Samsung's 10nm process), the new 5nm tech offers a 40 percent performance boost at the same power, or a 75 percent drop in power consumption at the same performance. Density is also through the roof, with IBM claiming it can squeeze up to 30 billion transistors onto a 50-square-millimetre chip (roughly the size of a fingernail), up from 20 billion transistors on a similarly-sized 7nm chip.
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