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Friday, 20 August 2010 09:13

AMD dumps Single Instruction Multiple Data

Written by Nick Farell
amd

3D Now, no longer
AMD's Single Instruction Multiple Data (SIMD) instruction set, which has been known by the handle 3DNow! since 1998 is finally being put out to pasture.

The chipmaker has said that SIMD won't be supported by various processors currently planned. AMD's upcoming chips will support SSE (its many versions) so they probably will not miss SIMD which has largely been out evolved by SSE.  In fact it is hard to find a developer who still thinks that it is important.

3DNow! functions still exist under the bonnet of PREFETCH and PREFETCHW instructions which are still going to be supported by new range of  processors.

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+13 #1 Hobgoblin 2010-08-20 10:26
Err, the SSE sets are SIMD instruction sets. SIMD hasn't been 'superseded' by SSE, SSE is SIMD, it's just a means of executing instructions in parallel and numerous bits of data at the same time.
 
 
+11 #2 Alexko 2010-08-20 10:45
Quoting Hobgoblin:
Err, the SSE sets are SIMD instruction sets. SIMD hasn't been 'superseded' by SSE, SSE is SIMD, it's just a means of executing instructions in parallel and numerous bits of data at the same time.


Indeed. And actually, SSE means Streaming SIMD Extensions!
 
 
+3 #3 pogsnet 2010-08-20 19:53
Good! We don't need redundant functions of this matter. This maybe the answer for AMD processor inefficiency towards leading competitor. AMD needs to clean up unused and ineffective instructions down the bonnet to become more effecient.
 
 
-11 #4 Jurassic1024 2010-08-20 23:01
As long as the fanboys (i hate any kind of fanboy), are praising everything AMD releases, there is no need to go after performance crowns.

AMD was was starting to show it's balls when they released the AthlonXP and later Athlon64 chips that gave Intel a run for its money (then came Conroe). But then when you think about it, AMD only excels when their competition is on it's back (Intel and Netburst, then nVIDIA and Fermi).

Now that their (AMD's) loyal customers praise them over and over like Jehovah on tech sites like this one, why would they put money into something better than the rest? That or they just don't have it in them. Think K8 and K10.5, and how long they've strung them along... Very similar to what Apple is doing.
 

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