I'm assuming that the operations being referred to in both cases are fp4 floating point operations. Mostly because
1. That's used for AI, so it's plausibly what they mean by "AI OPS"
2. It's generally a safe bet that the marketing numbers NVIDIA gives you is going to be for the fastest operations on the computers, and that those are the same for both computers when they're based on the same architecture.
Other than that, Terra is 10^12, Peta is 10^15, so 3352 Tera ops is 3.352 Peta ops and so on.
TOPS means Tera Operations Per Second.
Petaflops means Peta Floating Point Operations Per Second.
... which, at least to my uneducated mind here, doesn't sound comparable.