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[Bit-tech] All about Ivy Bridge - Page 10

post #91 of 112
Quote:
Originally Posted by ToTheSun! View Post
You'd save more money by getting a discounted 2500k now, and getting IB-E much later in 2012 (i'm so hopeful). That's what i'm doing. Just a suggestion.
Yeah, my plan would be to wait for IB-E, but if vanilla IB is good and an easy upgrade, the tempation will be hard to resist.
i did the same with 45nm c2ds
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post #92 of 112
Is it safe to presume then, that IB-E will be roughly 20% faster than SB-E? Therefore making it roughly a 60% performance gain over Nehalem?
I'm not looking to upgrade until I see a number > 50% performance gain... I'm not feeling left behind by current processors yet. (though those 5-6ghz overclocks make me drool)
    
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post #93 of 112
Quote:
Originally Posted by Xaero252 View Post
Is it safe to presume then, that IB-E will be roughly 20% faster than SB-E? Therefore making it roughly a 60% performance gain over Nehalem?
I'm not looking to upgrade until I see a number > 50% performance gain... I'm not feeling left behind by current processors yet. (though those 5-6ghz overclocks make me drool)
I'll bet a LOT more than 20% over SB-E.

Figure 10% IPC gain and 10-20% more OC headroom...then figure that IB-E will sport 8 cores at least and probably 10 or 12 on the Xeons.

10% IPC x 15% OC x 33.3% cores = 68.6% overall gains going from SB-E to Ivy-E on multi-threaded loads. Maybe 32% or so on lightly-threaded loads.

I assume more and more programs will use more cores in a couple years when Ivy-E releases. As someone who pretty much exclusively does 3D rendering and compositing with my computers, I always get 100% core usage at all times, but for gamers they'll need better optimized software.
Edited by kweechy - 10/18/11 at 4:50pm
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post #94 of 112
Quote:
Originally Posted by kweechy View Post
I'll bet a LOT more than 20% over SB-E.

Figure 10% IPC gain and 10-20% more OC headroom...then figure that IB-E will sport 8 cores at least and probably 10 or 12 on the Xeons.

10% IPC x 15% OC x 33.3% cores = 68.6% overall gains going from SB-E to Ivy-E on multi-threaded loads. Maybe 32% or so on lightly-threaded loads.
I hate to be awkward but... You're turning me on.

In all seriousness though if its anything like that, then it will be almost double the performance of Nehalem O.o. They can haz my moneyz nao.
    
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post #95 of 112
Quote:
Originally Posted by Xaero252 View Post
I hate to be awkward but... You're turning me on.

In all seriousness though if its anything like that, then it will be almost double the performance of Nehalem O.o. They can haz my moneyz nao.
Dude, I went to bed at 3:30 last night and tossed and turned till 7:30 cause I couldn't stop thinking about the water cooled, dual SB-E Xeon SR-3 rig that I'm going to build the instant they launch the chips!

A SINGLE machine like that is around 4% of the power of the entire 400 blade Nehalem render farm at my studio. That is INSANE.

Looking at the die shrink percentage, I think 12C Ivy Xeons are a total possibility in a couple years as well.

One step at a time though, let's have the 8C Sandy Xeons!

Quote:
almost double the performance of Nehalem
The crazy part is that for Xeon builds, SR-3 rigs are going to already be close to double the power of dual Nehalem SR-2 machines. My estimates are ~38 CineBench compared to the 21-22 on SR-2 rigs.

Not quite as crazy a bump for the X79 machines though since the i7 lineup doesn't have access to the 8 core chips (for now at least).
Edited by kweechy - 10/18/11 at 5:03pm
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post #96 of 112
Quote:
Originally Posted by kweechy View Post
Dude, I went to bed at 3:30 last night and tossed and turned till 7:30 cause I couldn't stop thinking about the water cooled, dual SB-E Xeon SR-3 rig that I'm going to build the instant they launch the chips!

A SINGLE machine like that is around 4% of the power of the entire 400 blade Nehalem render farm at my studio. That is INSANE.

Looking at the die shrink percentage, I think 12C Ivy Xeons are a total possibility in a couple years as well.

One step at a time though, let's have the 8C Sandy Xeons!
I might do that with IB-E, I'll have to gauge my wallet's thickness when IB-E drops before I make a decision to push into a dual CPU solution like that.
    
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post #97 of 112
Quote:
Originally Posted by Xaero252 View Post
I might do that with IB-E, I'll have to gauge my wallet's thickness when IB-E drops before I make a decision to push into a dual CPU solution like that.
Need to figure roughly $1,200 to $1,600 per CPU unfortunately.

However if you're like me and do a ton of rendering, compositing, etc., then despite the high CPU prices, the $/performance is still pretty much equal to a single CPU X79 rig with a $600 chip.

It's slightly worse, but for me I'd take the simplicity of one ridiculous machine that's a little bit more expensive per computing score over buying a couple machines that are theoretically more cost effective, but come with more annoyance in terms of networking, licensing, etc.

This is all speaking strictly from a CGI/VFX workflow standpoint where the machines will be run at 100% CPU usage for hours on end and possibly days on end.

Here's the spreadsheet I've made to evaluate these decisions for myself:
https://docs.google.com/spreadsheet/...90X1E&hl=en_US

It has no real meaning to someone that won't get a TON of usage out of the CPU power and all the cores however. The systems are barebones in this sheet without video cards; I just use them as distributed worker nodes.
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post #98 of 112
Quote:
Originally Posted by kweechy View Post
Need to figure roughly $1,200 to $1,600 per CPU unfortunately.

However if you're like me and do a ton of rendering, compositing, etc., then despite the high CPU prices, the $/performance is still pretty much equal to a single CPU X79 rig with a $600 chip.

It's slightly worse, but for me I'd take the simplicity of one ridiculous machine that's a little bit more expensive per computing score over buying a couple machines that are theoretically more cost effective, but come with more annoyance in terms of networking, licensing, etc.

This is all speaking strictly from a CGI/VFX workflow standpoint where the machines will be run at 100% CPU usage for hours on end and possibly days on end.

Here's the spreadsheet I've made to evaluate these decisions for myself:
https://docs.google.com/spreadsheet/...90X1E&hl=en_US

It has no real meaning to someone that won't get a TON of usage out of the CPU power and all the cores however. The systems are barebones in this sheet without video cards; I just use them as distributed worker nodes.
I don't do rendering much these days, but my rig does dedicate 100% of its clock cycles to compiling for around 12 hours a day. And with how well Make scales with the -J flag I could see much benefit from the extra cores... however it all depends on my budget at the time, the jump from 8 to 12 threads will be pretty big to begin with (or maybe even 16 if they drop an 8 core IB-E on us) lots of things to contemplate.
    
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post #99 of 112
Quote:
Originally Posted by kweechy View Post
Need to figure roughly $1,200 to $1,600 per CPU unfortunately.
Now i lost my hard-on
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post #100 of 112
Ivy bridge e should have processor prices that are close to sandy bridge e
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