I ran my own test last week. I installed a PCIe 4.0 drive in a laptop with zero airflow (because laptops are basically ovens). Without a heatsink, it hit 82°C in ten minutes of file copying. With a cheap thermal pad and a copper plate? 68°C. That’s a 14°C improvement, which means zero throttling.
Amazon.com: RIITOP NVMe Heatsink, M.2 Heatsink for M2 NVMe or SATA
But here’s the ironic part: I also tested it in a desktop with a giant CPU cooler blowing air over the M.2 slot. The difference was only 5°C. The case airflow already did the job. So your mileage really, really varies.
My advice? Don’t buy a heatsink out of fear. Buy it out of knowledge. Check your drive’s operating temperature online. Better yet, run a quick test yourself. If your drive stays below 70°C under your heaviest load, you’re golden. If not, slap on a $10 heatsink and call it a day.
The Final, Casual Verdict
Let’s be honest: a cheap aluminum heatsink costs less than a fancy coffee. If you’re even slightly unsure, just get one. It’s cheap insurance. Worst case, you spent a few bucks on a piece of metal that looks cool (pun intended).
But if you’re building a budget PC and every dollar counts, spend that money on something more impactful—like more RAM or a better CPU cooler. Your M.2 drive will survive, especially if your case has decent airflow.
So, do you need a heatsink? Only if your drive gets hot enough to throttle. Otherwise, let it run free, naked, and happy. And if you’re still anxious? Buy the heatsink. Your inner tech god will thank you for being thorough.
