Note that variant 2 of spectre has not been demonstrated on AMD and AMD claims to be unaffected ( http://www.amd.com/en/corporate/speculative-execution )

However, the description of spectre from spectreattack.com is this:

"Spectre breaks the isolation between different applications. It allows an attacker to trick error-free programs, which follow best practices, into leaking their secrets."

That, however, is not demonstrated by any of these PoC, not that I can find.