-One kit I purchased from a buddy of mine: preowned T-Create expert 32gb single rank 7200 cl34. CTCWD532G7200HC34ADC01 LINK

-I do however also have a new Corsair vengeance kit 32gb 6400 cl30 single rank CMK32GXX5M2B6400Z30 link

Couple notes:

-I can't find any die info on these two sets, can someone help me identify them? Also, what would be considered the better one for OCing and for my config?

-I'm runnig a 9950x3d, on the x870e Apex board which only has 2 DIMM slots, the 7200 cl34 kit has a custom heat sink block on them direct link which is pretty heavy duty with thermal pads, a direct ram cooling fan right underneath them (included with the mobo), and a EKWB lux 360 AIO in push-pull config as an intake on the side of my o11 EVO RGB.

-Since it's a default 7200 cl34 kit, I'd like to start setting the ram timing first before getting into OCing my new cpu. If aiming for 8000, what are some timings/voltages I should try? If aiming for 6400, what are some timings/voltages I should try?

I'm assuming and hopinig this combo of ram and cpu, custom heatsink, drect fan cooling, and AIO config should give excellent cpu and ram OCing results. But, I'm happy to hear your opinions or recs. Thank you and apologies if this is a repeated post!!