AMD embraces AVX making a new superset with SSE5(256bit support)

[informal]

What is important is performance. You can have hw support and coded app that can make use of SSSE3(hypothetical ex.) and it makes 3-5% difference... Let's wait and see what comes out from all of this in 2 years.By that time both designs will be well studied and probably we will have hardware on the shelves from both companies.

[Smartidiot89]

Because AMDs engineerers are stupid and have no clue what so ever what they are doing

[ajaidev]

[QUOTE=Shintai;3766463]So now having it doesnt matter now How is it big news then

Plus what happens when you compile and use say SSSE3. But lack one instruction because you didnt fully support it in your CPU Thats right, it doesnt run in that mode. It changes to a former more legacy mode.
If you didnt have full SSE2 support you couldnt run 64bit Windows either.

Alot of applications uses the newest instructions. Just because Crysis or some other popular title doesnt use it. Doesnt mean its not used at all in large amounts. And you will never see it really unless you bench it. Because then you just run it with SSE3 etc instead or so.[QUOTE]


I know that AVX is really easy to get along with. You can convert SSE4 Ins. to AVX in a few days instead of a full rewrite but the thing is AVX will be not supported by majority of processors in 2010 Eg Few people have i7 platform in 09. Yes the app will try and use a lower instruction set such as SSE4 but then again AVX is not entirely compatible with SSE4 so you have to double write coding which willadd to the weight of the application,complexity, etc.

In english-

AVX can do C = A+B and D = A+B+C but only if your processor supports AVX otherwise you will have to write more instructions instead like A = A+B ALSO C = A+C... The break down can also be done by the software itself which is slower because it happens in real time.