SSE,SSE2, MMX, 3Dnow!

[toant103]

How come AMD can use SSE, and SSE2 in their processor for addiontional instructions sets but INtel don't support 3dnow?

 

[CraigRT]

I think 3Dnow is just AMD's name for something Intel already has

 

[GeneralDisarray]

Because SSE was first and AMD pays royalties to include support for the instructions in their processors. AMD will start incorporating SSE2 with the upcoming ClawHammer (AMD Athlon 64? I think that was the public title). In theory, Intel could license 3D Now!, but it had very little developer support and was similar to SSE to begin with.