Coolaler has an Ivy Bridge CPU

yottabit

Golden Member
Jun 5, 2008
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Whoah, another engineering sample that underperforms? Weird...

Is Ivy Bridge supposed to bring any IPC improvement or will it all be in clocks?
 

Tuna-Fish

Golden Member
Mar 4, 2011
1,475
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Whoah, another engineering sample that underperforms? Weird...
This would be quite early samples from a new node -- it's normal.
Is Ivy Bridge supposed to bring any IPC improvement or will it all be in clocks?
Very little, if any IPC changes. All about clocks and power. Also a better GPU, and perhaps better caches.
 

Ken g6

Programming Moderator, Elite Member
Moderator
Dec 11, 1999
16,361
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Whoah, another engineering sample that underperforms? Weird...

Is Ivy Bridge supposed to bring any IPC improvement or will it all be in clocks?
This would be quite early samples from a new node -- it's normal.

Very little, if any IPC changes. All about clocks and power. Also a better GPU, and perhaps better caches.

Is it also normal that it's a little slower on SuperPI than an i5 at the same speed? (Page 5.)
 

Phynaz

Lifer
Mar 13, 2006
10,140
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Is it also normal that it's a little slower on SuperPI than an i5 at the same speed? (Page 5.)

There has been speculation that SB was the last CPU designed for all out IPC performance. So it's possible it could be slower clock for clock with greatly improved efficiency.
 

lol123

Member
May 18, 2011
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There has been speculation that SB was the last CPU designed for all out IPC performance. So it's possible it could be slower clock for clock with greatly improved efficiency.
I would actually like to see such a development. There haven't been any large improvements in clock frequency for over 6 years, and tri-gate 22 nm, which as I understand it greatly reduces power leakage compared to what we have today, could make new increases in clock frequency possible.
 

Tuna-Fish

Golden Member
Mar 4, 2011
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Is it also normal that it's a little slower on SuperPI than an i5 at the same speed? (Page 5.)

How is the memory subsystem working? It's pretty common for some levels of cache to disabled on ES chips, or the memory controller being barely functional. Both would be disastrous for superPI performance.
 

Ken g6

Programming Moderator, Elite Member
Moderator
Dec 11, 1999
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How is the memory subsystem working? It's pretty common for some levels of cache to disabled on ES chips, or the memory controller being barely functional. Both would be disastrous for superPI performance.

Everything seems enabled, but the IB has 2MB less L3. Also, the IB is an i3-type, with HT enabled. That might account for the difference.
 

VirtualLarry

No Lifer
Aug 25, 2001
56,554
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There has been speculation that SB was the last CPU designed for all out IPC performance. So it's possible it could be slower clock for clock with greatly improved efficiency.

That would be remarkably dumb of Intel, I think. Who would buy a newer but slower CPU? (Granted, I suppose I did, I replaced an E5200 @ 3.0 with a Zacate @ 1.6.) But power-consumption was my primary reason for that rig.

Surely, Intel cannot think that a majority of their market is more concerned about power than speed, given the speeds and power consumption that SB already gives.

And what about "race to idle", the idea that a faster CPU, even though it uses more power, will ultimately lead to less power consumption, by having lower idle state power, with the idea that performing the needed computations and then going to idle is better.
 
Nov 26, 2005
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I would actually like to see such a development. There haven't been any large improvements in clock frequency for over 6 years, and tri-gate 22 nm, which as I understand it greatly reduces power leakage compared to what we have today, could make new increases in clock frequency possible.

We need a large increase in IPC more than frequencies.
 

Mopetar

Diamond Member
Jan 31, 2011
8,110
6,754
136
Whoah, another engineering sample that underperforms? Weird...

Is Ivy Bridge supposed to bring any IPC improvement or will it all be in clocks?

I had assumed that IB was just supposed to be a die shrink of the SB architecture. It would seem weird for Intel to make major architectural changes during their "tick" phase. That said it is an engineering sample so I wouldn't read too much into the results.
 

Necc

Senior member
Feb 15, 2011
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It would be awesome if the ivy bridge is released before christmas, I doubt it thogh..
 

Phynaz

Lifer
Mar 13, 2006
10,140
819
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Surely, Intel cannot think that a majority of their market is more concerned about power than speed, given the speeds and power consumption that SB already gives.

The majority of the Intel's market is the enterprise, and yes, we are very, very concerned about power. It's expensive to run tens of thousands of PCs, let alone the amount of power data centers suck down.

Besides, define speed. Is IPC the only way to achieve it?

Personally I'm a fan of constant IPC increases, it's the thing that makes all apps run faster.
 

bridito

Senior member
Jun 2, 2011
350
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SB-E LGA2011 launched Jan '12. IB LGA1155 launched Feb '12. IB LGA2011 launched Mar '12.

Pinch me I'm dreaming!
 

piesquared

Golden Member
Oct 16, 2006
1,651
473
136
The majority of the Intel's market is the enterprise, and yes, we are very, very concerned about power. It's expensive to run tens of thousands of PCs, let alone the amount of power data centers suck down.

Besides, define speed. Is IPC the only way to achieve it?

Personally I'm a fan of constant IPC increases, it's the thing that makes all apps run faster.


It must be difficult for intel loyalists to reconcile how to idolize ivy bridge without improved IPC and higher clock speed, while critisizing bulldozer with improved IPC and higher clock speed. (according to current rumors)
 

bridito

Senior member
Jun 2, 2011
350
0
0
It must be difficult for intel loyalists to reconcile how to idolize ivy bridge without improved IPC and higher clock speed, while critisizing bulldozer with improved IPC and higher clock speed. (according to current rumors)

There once were two farmers. In the spring one planted his field with crops. The other had heard a rumor that the government was going to buy out all the farmland in the area that summer for a million dollars an acre, so he decided to just sit around and watch the weeds grow in expectation of being rich by autumn. Guess which one starved to death before winter?
 
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