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Ok, K10.5 vs Nehalem vs Sandy Bridge - Page 2

post #11 of 24
Quote:
Originally Posted by ChronoBodi;12853923 
hmm, not too bad honestly, six cores of those is still good in my book.

Yep, still pretty good chips.

I think in the end the biggest advancements Sandy Bridge made was its NB, clock for clock performance, and the fact that they did all this while bringing the power usage way, way down.

Just keep in mind the current Sandy Bridge chips are "Mainstream" versions, the 1366 replacements haven't even come out yet (6 core 12 threads and 8 cores 16 threads). I'm almost positive they'll reach over 30k ram speeds with sub 40 ms latency with tri channel this time around on $100 and cheaper ram sticks.

Sound be awesome either way to see bulldozer take on Intel, hopefully we're comparing the 8 core chip vs the 8 core chip and the 6 core chip vs the 6 core chip and the 4 core chip vs the 4 core chip this time around smile.gif
    
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post #12 of 24
The 1366 replacements will be all extreme edition, at least to begin with
They will be so far from affordable to the current user that they might just nearly be thrown out of the equation at the moment
post #13 of 24
Quote:
Originally Posted by thealex132;12853658 
Nehalem was a new arch, SB/IB is their improvement on that.
Nuh-uh. Westmere was the improvement to Nehalem. Sandy Bridge is new arch and Ivy Bridge is the improvement.
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post #14 of 24
Quote:
Originally Posted by rui-no-onna;12855288 
Nuh-uh. Westmere was the improvement to Nehalem. Sandy Bridge is new arch and Ivy Bridge is the improvement.

+1 I was gonna say, usually changes in their naming scheme indicates new archs.
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post #15 of 24
Quote:
For real workloads IPC rarely exceeds 2and is highly data and compiler dependent.

IPC is a bad measure of how good a CPU is.
http://www.amdzone.com/phpbb3/viewtopic.php?f=52&t=137913#p188396
    
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post #16 of 24
Quote:
Originally Posted by xd_1771;12854704 
The 1366 replacements will be all extreme edition, at least to begin with
They will be so far from affordable to the current user that they might just nearly be thrown out of the equation at the moment

Good call. This needs to be said more often to all the people hanging their hat on LGA 2011.
post #17 of 24
Quote:

Quote:
All of this is very interesting but unfortunately IRRELEVANT! Why?
Because an MPU with a given IPC can outperform an MPU with
a higher IPC! If you pick on a metric, make sure you know what
its relevance is.

Quote:
Exactly! IPC is a bad measure of how good a CPU is. I have said it many times on this forum... and even written my new blog about it.

So don't feel bad if Bulldozer can have lower IPC than K10 in some scenario. What matters is it will have higher single-thread performance on real workloads (at least according to AMD). That's good enough.

If anyone still feel Bulldozer has to have higher IPC in all cases, please read my latest blog and see if you're convinced otherwise..
Quote:
No matter how the decoder or retirement or L1 cache is designed, 2 ALU + 2 AGU will NEVER give you >2 IPC unless the AGU is also capable of simple add/logic operations.

This shouldn't be a hard concept to grasp?

It is time to let go that "IPC is good" sentiment. ....
Quote:
I completely agree that IPC has no real meaning with modern processors. For AVX and FMA4 IPC likely to be 1 or less than 1. Also most real world application will be bottlenecked by memory bandwidth. With aggressive perfecting and decupled AGU, bulldozer can perform better than Ph2. However, theoretical performance for integer instructions may less than p2.
gruffi:


I r confused.

Quote:
Originally Posted by JCPUser;12863080 
Good call. This needs to be said more often to all the people hanging their hat on LGA 2011.


I'm not sure of the logic behind that. When 1366 came out you could buy an extreme edition for $1000, or the 920 for $300.... But I guess this time Intel will do something they've never done and only offer 1k - 1.4k cpus for a new socket.
    
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post #18 of 24
Quote:
Originally Posted by thealex132;12853658 
Nope, Core duo was a new arch, Core 2 duo/quad was their improvement on that. Nehalem was a new arch, SB/IB is their improvement on that.
AMD's Phenom line-up is like the improvement on the old Athlon chips, which are rather old. That's why Bulldozer is such a big deal for them
Quote:
Originally Posted by rui-no-onna;12855288 
Nuh-uh. Westmere was the improvement to Nehalem. Sandy Bridge is new arch and Ivy Bridge is the improvement.
you both are right smile.gif , it depends on point of view

http://www.realworldtech.com/page.cfm?ArticleID=RWT091810191937&p=1

sandybridge is more evolutionary than revolutionary type of design
    
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post #19 of 24
Quote:
Originally Posted by BallaTheFeared;12863592 
I r confused.
not really
Quote:
I'm not sure of the logic behind that. When 1366 came out you could buy an extreme edition for $1000, or the 920 for $300.... But I guess this time Intel will do something they've never done and only offer 1k - 1.4k cpus for a new socket.
lga1356 -intel is very quiet about it, IMO they paused it or maybe cancelled it
small hint - jcornel shows picture with all these intel sockets, but 1356 is not there ... wink.gif

lga2011 has many server features, properties.
some of them doesnt make sense for desktops (expensive features for desktops, you dont need)

im waiting for new infos if this changes, but until now i think lga2011 is server only:confused:
    
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post #20 of 24
I don't want to get into this with you because I'm not very good at playing make-believe.
    
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