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Is AMD going to x86 instead of staying x64? Why? - Page 3

post #21 of 74
Developers need to catch up to 64bit before anyone thinks about 128bit imo...
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post #22 of 74
Quote:
Originally Posted by _GTech View Post
TY, much needed in these forums were Fail seems to be the most overly used word in some people's vocabulary...

Good point.. +Rep
Including yours?
http://www.overclock.net/video-game-...l#post12402680
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post #23 of 74
Quote:
Originally Posted by scyy View Post
It's better to ask a question and look like a fool for a moment than to not ask the question and continue being ignorant of the answer.
Whilst that's true, there's another saying:

"It's better to not say anything and have people think you're a fool, than to open your mouth and leave them in no doubt".
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post #24 of 74
Quote:
Originally Posted by purpleannex View Post
Whilst that's true, there's another saying:

"It's better to not say anything and have people think you're a fool, than to open your mouth and leave them in no doubt".
I prefer "There are no stupid questions, just stupid people.".
    
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post #25 of 74
Quote:
Originally Posted by DuckieHo View Post
What's the benefit of a 128-bit OS? Quad-precision Floating Point is rare even in HPCs and non-existent in desktop use.

You can't be partially functioning 128-bit. You either are or are not.
Actually you can. Intel's AVX is a 256 bit instruction set, running on a 64bit processor. You can have 256 bit registers alongside 64 bit ones.

Running the major X86 instructions on 128 bit wouldn't make any sense though, unless we want to start adding subatomic physics simulation and genome sequencing to our video games.

Its not like we're going to run out of memory slots any time soon with 64 bit either. You can address 16 exabytes of memory with 64 bits. Thats enough to address every byte of information on the internet 3 times over.
    
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post #26 of 74
Still though il be interested to see the difference AVX 256bit makes on windows 7 service pack 1 when it is released in a few months and I have my bulldozer. From what ive read they cleam the performance tweaks will make a substantial difference but it could just be marketing hype so the proof will be in the pudding/benchmarks.
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post #27 of 74
I highly doubt any new CPUs are not going to be released in 64-bit.
post #28 of 74
Quote:
Originally Posted by DuckieHo View Post
What's the benefit of a 128-bit OS? Quad-precision Floating Point is rare even in HPCs and non-existent in desktop use.

You can't be partially functioning 128-bit. You either are or are not.
I have no idea. I was just saying what I read. I know that it might not be true. But I can at least take away from it, that 128bit OS's are in the future.
post #29 of 74
Quote:
Originally Posted by Ace Telekinesis View Post
Still though il be interested to see the difference AVX 256bit makes on windows 7 service pack 1 when it is released in a few months and I have my bulldozer. From what ive read they cleam the performance tweaks will make a substantial difference but it could just be marketing hype so the proof will be in the pudding/benchmarks.
It nearly doubled the floating point out put we saw in LinX/IBT.. With Sandy Bridge chips.

That said floating point on a cpu is nearly dead, which is one of the reasons AMD cut theirs in half.

128 bit per core, capable of combing into one 256 bit pipeline, but where the SB chips will have 8 256bit pipelines on their 8 core cpu, bulldozer will only have 4 on its 8 core cpu (edit: 4 256 bit pipelines combined or 8 126 bit pipelines)

Does it really matter? Not really, almost nothing done on the cpu is FP anymore.
Edited by BallaTheFeared - 2/16/11 at 4:58pm
    
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post #30 of 74
SB shares several parts of integer circuitry with floating point part.
(may cause performance loss)
This is less ideal than Bulldozers approach.
    
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