NASM 2.05 based x86 Instruction Reference[ch195]
A.5.173 MOVNTPD: Move Aligned Four Packed Single-Precision FP Values Non Temporal MOVNTPD m128,xmm ; 66 0F 2B /r [WILLAMETTE,SSE2] MOVNTPD moves the double quadword from the XMM source register to the destination memory location, using a non-temporal hint. This store instruction minimizes cache pollution. The memory location must be aligned to a 16-byte boundary.