这里存在一个最佳值的问题，你总是能把一块晶片分成多个核，可是研究结果表明多于16核，整体效率下降。就如下面NVIDIA的副总说的，多核就像试图用给火车每节车厢安翅膀的办法来造飞机一样愚蠢，所以核越多越蠢，胡总设计师蠢得有64核。

NVIDIA and Intel haven’t been shy about their differing respective visions of the future of computing in the past year or so, but it looks like Team GPU just upped the rhetoric a little — a Forbes column by NVIDIA VP Bill Dally argues that ‘Moore’s law is dead.’ Given that Moore’s law is arguably the foundation of Intel’s entire business, such a statement is a huge shot across the bow; though other companies like AMD are guided by the doctrine, Intel’s relentless pursuit of Gordon Moore’s vision has become a focal point and rallying cry for the world’s largest chipmaker.

So what’s Dally’s solution to the death of Moore’s law? For everyone to buy into parallel computing, where — surprise, surprise — NVIDIA’s GPUs thrive. Dally says that dual, quad- and hex-core solutions are inefficient — he likens multi-core chips to ‘trying to build an airplane by putting wings on a train,’ and says that only ground-up parallel solutions designed for energy efficiency will bring back the golden age of doubling performance every two years. That sounds fantastic, but as far as power consumption is concerned, well, perhaps NVIDIA had best lead by example.