Samsung Evo 970 nvme M2 macpro 2013 upgrade: do I need a heatsink ?

The adapter I used is the Sintech NGFF M.2 nVME SSD Adapter Card for Upgrade 2013-2015:

https://www.amazon.com/gp/product/B01CWWAENG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

The heatsink I used is the EKWB EK-M.2 NVMe:

https://www.amazon.com/gp/product/B073RHHYCM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

It is a very tight sandwich of the actual memory chip between the front and back of the heatsink, but it does fit and I have had no problems. There are other thinner heatsinks that are probably easier to close, but the Sintech itself is not an issue. Do not remove the label from the Samsung chip as it is part of it's built-in heatsink.

I've used Intel Power Gadget to determine the temperature of the original 256 SSD with default heat sink and the Samsung 870 NVMe without a heat sink and the Samsung constantly is one to three degrees lower than the apple during the same tasks. Although the final decision of course is on the user.

Here's a snippet from Samsung:

"4) Do I need a heat sink for optimal performance of the Samsung NVMe M.2 SSD?

Samsung NVMe SSDs rarely require a heat sink, yet maintain optimal performance thanks to Samsung’s advanced design and manufacturing capabilities coupled with an integrated, heat dissipating thermal label. In rare instances of extreme workloads (transfer of several hundreds of GB), performance may be throttled through Samsung’s dynamic thermal throttling algorithm to protect the SSDs integrity.

Please be aware, however, that an external heat source such as a high- powered graphics card, or CPU placed in close proximity to a Samsung NVMe SSD, can adversely affect air flow around a Samsung NVMe SSD which may lead to performance degradation. Therefore, please ensure there is appropriate air flow around your Samsung NVMe SSD. "

I have a 2 TB Samsung 970 Evo Plus in my 6-core 2013 Mac Pro. A heatsink lets the 970 run 10-15 degrees cooler, 126 F rather than 136-143 F, which is nice. I also turn the fan up to 1600 using iStat menus since it is still silent. No problems whatsoever. Heatsinks are inexpensive and the case easily fits everything so there is no reason not to use one. Do not remove the sticker on the 970 as it is part of it's built in heat management.