Igor: Noctua NT-CP1 Carbon Nanotube Thermal Pad Tested
O.a.
My neutral conclusion is therefore deliberately differentiated. The NT-CP1 is not a material for every user and not automatically the best solution for every platform. But it is a technically interesting and also durable interface that, after a distinct break-in phase, shows orderly and very stable behavior as well as respectable performance. Its greatest strength lies in its potential dimensional stability and lower susceptibility to classic paste problems. Its greatest weakness lies in its dependence on pressure, flatness, warpage, and mounting quality.
It is noteworthy that Noctua places the NT-CP1 very clearly in the classic CPU environment with heat spreader, in this case for socket AM4/AM5.
That is exactly where the measurements also show the most plausible use case: clean mounting, defined contact surfaces, a controlled settling process, and an interface that should not stand out due to drying out or pump-out.
Marketing and measured values are remarkably close here, and that definitely speaks for Noctua.
Not because the pad suddenly beats every high-end paste straight from the tube, but because the advertised application matches quite precisely what can be reproduced in the lab.
On balance, the NT-CP1 is therefore not a miracle pad, but neither is it a gimmick.
On the contrary. It is a material with character, and in thermal engineering, character usually means: one must know how to handle it.
Anyone who creates clean mounting conditions gets an interesting, potentially long-lived interface. Anyone who simply expects an uncomplicated universal solution for every graphics card should rather stay with a good PTM or a high-quality paste. No wonder AMD also chose this pad. After all, they usually know what they are doing.