See:
http://www.tomshardware.com/reviews/samsung-sm951-m.2-pcie-ssd,4045.html
Interesting that the insane temperature of the previous model was called out, yet still no temperature graphs to compare how much improvement this latest and still NON-NVMe capable, M.2 SSD offers.
Samsung SM951 PCIe M.2 512GB SSD... M.2 take two (and still not there).
http://www.tomshardware.com/reviews/samsung-sm951-m.2-pcie-ssd,4045.html
Interesting that the insane temperature of the previous model was called out, yet still no temperature graphs to compare how much improvement this latest and still NON-NVMe capable, M.2 SSD offers.