Personally, I'd advise simply paying less attention to tire makers' TPI claims. Higher TPI is, in theory, nice to have, but it's just one small detail in the big picture.

If you're interested in tires, I'm sure there are guys on here who'd be happy to give you opinions. Mention what kind of riding you'll be doing, on what types of surfaces (paved, dirt, gravel, etc.), what size(s) you're looking at, and how much you're looking to spend. Or just mention what tires you're looking at and ask for opinions of those.