I can agree with that. The pseudo-assembly language of PIX serving as the long term basis for tooling on NVidia likely helped a lot.

I know little changes to AMDs architecture required minor changes to the machine code. I think the Assembly could recompile but long term binary compatibility is something of an NVidia superpower (even if it's imperfect, it's far better than competitors attempts)

> SPIR

I hear it's kinda sorta worth using... Maybe soon?

Strangely, the most SPIR stuff seems to be from Intel and their OneAPI push? Id have expected a bigger role from AMD.

I'm wondering why it took so long for SPIR to become a serious engineering attempt. Well, better late than never.