Arm vs RISC-V? Which One Is The Most Efficient?

Arm has been making power efficient processors for decades. RISC-V is relativity new and many parts of its specifications aren't even ratified, but that hasn't stopped chip designers making RISC-V processors, including microcontrollers. Can RISC-V challenge Arm's power efficiency supremacy? --- Let Me Explain T-shirt: https://teespring.com/gary-explains-let-me-explain-2 Twitter: https://twitter.com/garyexplains Instagram: https://www.instagram.com/garyexplains/ #garyexplains