On April 4th, 2016, there was a Reddit rumor claiming that NX was using x86 architecture. Reddit’s moderators verified the post, and this gave the rumor some legitimacy.
After speaking to seven different people this week, I can say with confidence that this is false. NX is not using x86 architecture like PlayStation 4 and Xbox One. The NX has special, custom-made chips and the overall design of the hardware is very modern. The chips are industry leading because they are very modern chips, but having modern chips doesn’t necessarily mean Nintendo is aiming to create the most powerful hardware on the market. Furthermore, any NX rumors on “Polaris chips” and “Polaris architecture” are all wacky. There’s a good reason why those rumors are wacky.
In terms of raw power, numerous sources tell me that NX is much closer to Xbox One than PlayStation 4. Even that might be stretching it a tiny bit. Anyone who is claiming that NX is “two times the power of PS4 GPU” is being misled by their sources. Based on what I’ve heard, I don’t believe the NX will compete directly with PS4 (Neo) / PS4K in raw power.
There will be plenty of debates over the NX’s specs because it’s not simple to directly compare two apples (with x86 architecture) to an orange (that doesn’t use x86 architecture). But everything that I’ve heard (so far) indicates that NX isn’t going to blow away any of the consoles on the market today…except for Wii U.