从anandtech那里得到了部分解释,
“ In terms of die size and transistor count, NVIDIA is genuinely building the biggest GPU they can get away with: 21 billion transistors, at a massive 815mm2, built on TSMC’s still green 12nm “FFN” process (the ‘n’ stands for NVIDIA; it’s a customized higher perf version of 12nm for NVIDIA).”
这个12FFN是为NVIDIA定制的一个12nm,与之前的12nmFFC完全不同,在密度上与16+工艺非常接近(甚至可能可以说是一样,3.2%是不是架构造成的还不一定呢),很可能是通过加高鱼鳍的办法对导通和漏电控制进行了强化,或者是在16+基础上专门针对伏特架构进行了适应性调整 |