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AMD 65nm Product Plans Unveiled - Page 2

post #11 of 19
Quote:
Originally Posted by boredom View Post
AMD doesn't really need extra cache, the performance loss/gain between 512kb and 1mb is so small that it can be entirely ignored

It's also cheaper to make 512kb than 1mb
Hyper transport is the reasoning for this i assume?
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post #12 of 19
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Quote:
Originally Posted by Blue_Fire View Post
Hyper transport is the reasoning for this i assume?
I don't know the exact reason why but it does involve HT+the IMC
    
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post #13 of 19
AMDs cache has a MUCH lower latency than anything Intel has ever produced, that's straight fact, and I think this has a lot to do with why they can get away with tons less cache (thereby being cheaper, running cooler and possibly overclocking a bit further) having super low latency L1 and L2 cache, and having less L2 but more L1 than Intel counterparts means AMD can make much more efficient use of the cache memory it has.

It has nothing to do with Hyper Transport or the Integrated Memory Controller, those are the reasons why system memory (RAM) is much lower latency on AMD platforms than on Intel platforms but the cache is located on die inside the CPU.
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post #14 of 19
Thread Starter 
Quote:
Originally Posted by Remonster View Post
AMDs cache has a MUCH lower latency than anything Intel has ever produced, that's straight fact, and I think this has a lot to do with why they can get away with tons less cache (thereby being cheaper, running cooler and possibly overclocking a bit further) having super low latency L1 and L2 cache, and having less L2 but more L1 than Intel counterparts means AMD can make much more efficient use of the cache memory it has.

It has nothing to do with Hyper Transport or the Integrated Memory Controller, those are the reasons why system memory (RAM) is much lower latency on AMD platforms than on Intel platforms but the cache is located on die inside the CPU.
I was thinking of why dividers and RAM speed don't affect K8's performance and tried to tie it in with their cache and why size doesn't matter to them...

I guess I was wrong :/
    
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post #15 of 19
Quote:
Originally Posted by Remonster View Post
AMDs cache has a MUCH lower latency than anything Intel has ever produced, that's straight fact, and I think this has a lot to do with why they can get away with tons less cache (thereby being cheaper, running cooler and possibly overclocking a bit further) having super low latency L1 and L2 cache, and having less L2 but more L1 than Intel counterparts means AMD can make much more efficient use of the cache memory it has.

It has nothing to do with Hyper Transport or the Integrated Memory Controller, those are the reasons why system memory (RAM) is much lower latency on AMD platforms than on Intel platforms but the cache is located on die inside the CPU.
Remon, I don't know if you know or not, but what will the L3 cache be for? Just another level of cache? Why not add in an L4-L5 cache

Just wondering!
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post #16 of 19
Quote:
Originally Posted by Remonster View Post
AMDs cache has a MUCH lower latency than anything Intel has ever produced, that's straight fact, and I think this has a lot to do with why they can get away with tons less cache (thereby being cheaper, running cooler and possibly overclocking a bit further) having super low latency L1 and L2 cache, and having less L2 but more L1 than Intel counterparts means AMD can make much more efficient use of the cache memory it has.

It has nothing to do with Hyper Transport or the Integrated Memory Controller, those are the reasons why system memory (RAM) is much lower latency on AMD platforms than on Intel platforms but the cache is located on die inside the CPU.
You sure about that its just another factor.

With the HT link providing a much quicker bus speed between RAM and the CPU it means it can contact the RAM much faster and vice versa, so naturally it doesnt need the massive amounts of cache that Intel's do.
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post #17 of 19
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So does that mean I was partly right? o_O
    
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post #18 of 19
with this new lineup is amd still screwed?
post #19 of 19
Thread Starter 
Quote:
Originally Posted by ModeX View Post
with this new lineup is amd still screwed?
Yup
    
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