The TDP on the 5950x is 105w. Its PPT is 142w (where the processor easily hits with PBO disabled). So AMD doesn't report TDP correctly either. This is nothing new, it's been hashed out 1000x here on the forums. If this rumor turns out to be accurate, and the TDP is actually 170w for this new CPU, the PPT will be around 230w.
Yes, it is correct. Maybe you're confusing Core Performance Boost (you know, the normal stock setting for the CPU to boost above it's base clock) with Performance Boost Overdrive where, when enabled, the 5950x can easily exceed 230w. See the posts above by
@freeagent with his 5900x heating the room.
Either way, as I stated before, the power consumption doesn't really matter if the performance is there.