Not really, you can get a pc with better specs especially in regards to CPU, but we will be comparing a high latency environment with the overhead of Windows OS vs a low latency of a dedicated game box with a established baseline that developers can optimize for.
If anything, I am surprised that Sony would put such a monster GPU Radeon 7970M in a console(still skeptical about reports). If that were true, you would need a pretty expensive PC to top the ps4 at least initially out of the gate.
Of course, given the rate of turnover for PC components always becoming more powerful and cheaper, that advantage won't last long. But at least initially, in comparison to where the PS3 was against the pc scene in 2006-2007, if specs are true, than the PS4 is much stronger relative position.