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post #131 of 139
If Bulldozer IPC is only 5% above Phenom II, it is still a 15% increase from Phenom II once you account for the 10% performance loss from the new design to allow more cores in the same space.
    
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post #132 of 139
Quote:
Originally Posted by BallaTheFeared View Post
If Bulldozer IPC is only 5% above Phenom II, it is still a 15% increase from Phenom II once you account for the 10% performance loss from the new design to allow more cores in the same space.
that 10% figure you are throwing out there relates to building a second integer core into a module.

How would that affect IPC? I guess it would determine IPC in single-threaded and multi-threaded situations right?

In a single threaded example the addition of an additional integer core won't affect IPC on the working core, but in multithreaded scenarios it would be a little bit faster if both integer cores had sole access to all resources (that is where the 10% loss comes from.

is that right? that is at least how i've understood it
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post #133 of 139
Quote:
Originally Posted by deltree View Post
with only 16mb cache for a 16 core processor thats not impressive at all...at the end of the day cache matters more then the cores themselves for the differences over each additional core to be fully recognized...
Cache barely matters any more...Ever since Intel ditched the FSB, no CPU needs large caches.

Quote:
Originally Posted by ecnelitsep View Post
Llano needs 1.7v and LN2 for 4.2Ghz yet you expect BD to cruise to 5Ghz as easy as sandy bridge?

As for my chip. 4Ghz daily, 4.6 for benching. When you have amazing ipc you don't need lots of cores and clock speed but its not like you'd know anything about that with that thuban.
Llano is a shrunk Phenom II/Stars core, it isn't designed to OC, iirc there's actual reasons as to why it doesn't OC well, which AMD made because it was cheaper and the target market for Llano isn't enthusiasts.

Some people use more cores than others, what if he got it before SB came out? Completely fair.

Plus, I bet if I replaced your SB with a Deneb, you wouldn't notice much of a difference in speed.
    
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post #134 of 139
Quote:
Originally Posted by BallaTheFeared View Post
If Bulldozer IPC is only 5% above Phenom II, it is still a 15% increase from Phenom II once you account for the 10% performance loss from the new design to allow more cores in the same space.
Meh.

Just by going to 32nm they would have been able to get 8 cores on the die. It would have been a little bigger and hotter than bulldozer, but it still would have worked. If AMD spent 6 years on 5% IPC and marginally better thermals/power requirements then they failed hard.

Given that it is a ground up new arch and the amount of money/time they have dumped into it, logic states it will be much much better than Phenom is all aspects. Otherwise...what was the point.
post #135 of 139
Thread Starter 
Quote:
Originally Posted by JCPUser View Post
Meh.

Just by going to 32nm they would have been able to get 8 cores on the die. It would have been a little bigger and hotter than bulldozer, but it still would have worked. If AMD spent 6 years on 5% IPC and marginally better thermals/power requirements then they failed hard.

Given that it is a ground up new arch and the amount of money/time they have dumped into it, logic states it will be much much better than Phenom is all aspects. Otherwise...what was the point.
This.

Look what Intel was able to do in 5 years' time. Sandy Bridge represents a 50% increase in IPC compared to the original Core 2 architecture of 2006. At the same time, power consumption has been greatly reduced. Given that AMD has been working on this brand-new architecture for even longer, it's only fair to expect that AMD would be able to produce similar performance gains.
Edited by 996gt2 - 8/7/11 at 8:11pm
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post #136 of 139
Quote:
Originally Posted by Brutuz View Post
Some people use more cores than others, what if he got it before SB came out? Completely fair.
If you mean me, since ecnelitsep was replying to me, then yes, I got my Thuban on 26 April 2010, ~9 months before SB was released. And it was it was straight 'drop in' swap for my old cpu in my motherboard, not new cpu, ram, mobo = £$€. FWIW, my thuban was a huge performance upgrade over my Phenom II X4 940, not in games no, but general usage, yes. It may not be the fastest cpu, but it never slows down, no matter how many applications I throw at it at once.
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post #137 of 139
Last AMD CPU I had was an Athlon XP 2000+ in 2006

Then I jumped ship to C2D/C2Q!
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post #138 of 139
Quote:
Originally Posted by purpleannex View Post
If you mean me, since ecnelitsep was replying to me, then yes, I got my Thuban on 26 April 2010, ~9 months before SB was released. And it was it was straight 'drop in' swap for my old cpu in my motherboard, not new cpu, ram, mobo = £$€. FWIW, my thuban was a huge performance upgrade over my Phenom II X4 940, not in games no, but general usage, yes. It may not be the fastest cpu, but it never slows down, no matter how many applications I throw at it at once.
Exactly my point, if I'd kept my PhII 965, then I could buy any AM3+ board now, use the RAM I still have and add a 8 core BD later, it ends up far cheaper for me than buying a new system.

But with the rumors about 10 core BD-enhanced on a new socket, I figured I may as well sell up and just go all new.
    
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post #139 of 139
Closed. Yet another thread trashed by attempted flame wars...
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