I think that you need more than just computing power, you need high levels of interconnection with low latency.

So while we undoubtedly have sufficient aggregate computing power, I don't think it is structured in a way that would allow it to emulate human cognition and problem sovling, not just pattern recognition.

That said, consciousness is an incredibly heterogeneously defined term but can probably be pretty widely applied (many people confuse consciousness with sentience or sapience.)