Expected Ivy Bridge performance

dlamb2471

Member
Dec 21, 2010
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What's the consensus on expected Ivy Bridge performance? Any chance we'll get something worth upgrading a i7 2600 over? I keep hoping we will (if you see my graphics card post, I've got a line of friends I can easily sell "old" hardware to). I'm holding out hope, but my guess is, "probably not without some serious OC'ing".
 

dlamb2471

Member
Dec 21, 2010
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Yeah which of course can't justify the upgrade the cost, because even with the power savings, it would take YEARS to make back. Many years. So 2013 it is then.
 

greenhawk

Platinum Member
Feb 23, 2011
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Average of 5-10% boost in performance give or take.

that is about all that can be expected. The integrated GPU will have a large increase, but not really something someone with a high end system will be using.

though if overclocking, then that 5-10 % could be reduced / increased from a existing sandybridge that is also overclocked. (ie: bad overclocker).
 

nategator

Junior Member
Sep 3, 2011
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Do you guys think that the IG upgrade will be enough to run most current gen games at medium settings -- something like Skyrim, upcoming GTA V, etc? Im moving from a console and curious on whether I could try to squeak by on Ivys IG until I save enough to buy a decent discrete graphics card.
 

gmaster456

Golden Member
Sep 7, 2011
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Do you guys think that the IG upgrade will be enough to run most current gen games at medium settings -- something like Skyrim, upcoming GTA V, etc? Im moving from a console and curious on whether I could try to squeak by on Ivys IG until I save enough to buy a decent discrete graphics card.
No, but it would play slightly older games on said settings just fine.
 

Kristijonas

Senior member
Jun 11, 2011
859
4
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With the best IB integrated GPU + a slight overclock I'd bet Skyrim could run at low or even medium with ~30fps.
 

dma0991

Platinum Member
Mar 17, 2011
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Do you guys think that the IG upgrade will be enough to run most current gen games at medium settings -- something like Skyrim, upcoming GTA V, etc? Im moving from a console and curious on whether I could try to squeak by on Ivys IG until I save enough to buy a decent discrete graphics card.
I'm pretty sure it is playable but you won't enjoy it that's for sure.
 

LOL_Wut_Axel

Diamond Member
Mar 26, 2011
4,310
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I stand by what I said earlier. 5% higher IPC, 5% higher clock potential. So 10%.

The only real thing that stands out for Ivy Bridge is native support for PCIe 3.0. As we've seen, cards like the Radeon HD 7970 are starting to saturate PCIe 2.0 X8.
 

grkM3

Golden Member
Jul 29, 2011
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I stand by what I said earlier. 5% higher IPC, 5% higher clock potential. So 10%.

The only real thing that stands out for Ivy Bridge is native support for PCIe 3.0. As we've seen, cards like the Radeon HD 7970 are starting to saturate PCIe 2.0 X8.


lol and pci e 2.0 16x has double the bandwith and it can barely max 8x

pcie 3.0 is nothing but marketing since the card wont even come close to maxing 2.0 8x and nevermind coming close to 16x

ohh nooo everyone that bought a x79 setup run and buy a new ivy bridge cpu because your 2.0 spec board and chips wont push the new 7970 cards LOL

now if the 7970 had 4 gpus on one card then I could see the need for pci 3.0

by the time we actually have a gpu that will push the full bandwith og pcie 3.0 your IVY bridge cpu will be like a P4 and hold the gpu back bigtime
 
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LOL_Wut_Axel

Diamond Member
Mar 26, 2011
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lol and pci e 2.0 16x has double the bandwith and it can barely max 8x

pcie 3.0 is nothing but marketing since the card wont even come close to maxing 2.0 8x and nevermind coming close to 16x

ohh nooo everyone that bought a x79 setup run and buy a new ivy bridge cpu because your 2.0 spec board and chips wont push the new 7970 cards LOL







Ultimately what is clear is that 8GB/sec of bandwidth, either in the form of PCIe 2 x16 or PCIe 3 x8, will be necessary to completely feed the 7970. 16GB/sec (PCIe 3 x16) appears to be overkill for a single card at this time, and 4GB/sec or 2GB/sec will bottleneck the 7970 depending on the game. The good news is that even at 2GB/sec the bottlenecking is rather limited, and based on our selection of benchmarks it looks like a handful of games will be bottlenecked. Still, there’s a good argument here that 7970CF owners are going to want a PCIe 3 system to avoid bottlenecking their cards – in fact this may be the greatest benefit of PCIe 3 right now, as it should provide enough bandwidth to make an x8/x8 configuration every bit as fast as an x16/x16 configuration, allowing for maximum GPU performance with Intel’s mainstream CPUs.

PCIe 3.0 x4/PCIe 2.0 x8 is enough to make an HD 7970 lose 10% or more of its performance in some games, which is definitely noteworthy. And before you go screaming about x16, if you're running CrossFire with Sandy Bridge you're limited to x8/x8. Going forward, PCIe 2.0 x8 will definitely become a bottleneck.
 

grkM3

Golden Member
Jul 29, 2011
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read what I said again,you are saying pcie 2.0 has only 8x when you can run it at 16x and its more than enough to run 2 7970s at full speed

1 card 16x 2.0 and the other card 16x 2.0 with another 8 lanes doing nothing on a x79 board with a sandy E cpu

do you honeslty think some one with a x79 setup is going to downgrade there 6 core sandy E to take advantage of an ivy with pcie 3.0 support?

and your 8x to 16x scores are less then 1fps in most games and can easily be throw away do to + or - results from running the benchmarks at different times.

dont forget driver tweaks,whats more crazzy is how well 4x runs,a simple 2-3mhz bclk over clock would get rid of that bottle neck even at 4x

so tech we can run 3 7970s on an x79 setup

16x
16x
4x

and 4 lanes left for usb and sata etc.
 
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Edrick

Golden Member
Feb 18, 2010
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do you honeslty think some one with a x79 setup is going to downgrade there 6 core sandy E to take advantage of an ivy with pcie 3.0 support?

When did X79 not support PCIe 3.0?
 

grkM3

Golden Member
Jul 29, 2011
1,407
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When did X79 not support PCIe 3.0?

pcie 3.0 is in the cpu

they will support it with ivy e

edit it looks like some chips are going to run 3.0 but maybe the c2 stepping ones and intel will offiacially support it with ivy e.

either way 40 16x lanes is more than enough even at 2.0 speeds
 
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Dadofamunky

Platinum Member
Jan 4, 2005
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I think the 10% estimate is conservative. I'll probably upgrade to the Ivy 2600K equivalent.
 

psolord

Platinum Member
Sep 16, 2009
2,092
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I stand by what I said earlier. 5% higher IPC, 5% higher clock potential. So 10%.

The only real thing that stands out for Ivy Bridge is native support for PCIe 3.0. As we've seen, cards like the Radeon HD 7970 are starting to saturate PCIe 2.0 X8.

Isn't 5% higher clock potential a little conservative, going from 32nm to 22nm plus flipflop transistors or whatever they are called?
 

Nemesis 1

Lifer
Dec 30, 2006
11,366
2
0
PCIe 3.0 is a gimmick. GPUs aren't even close to maxing out PCIe 2.0.

Really! Lets Take a Z77 for a litle test spin . I want IVB 22nm . But I also want Big E penis SO I crossfire 2 7970s But when using z77 MB with 2 cards I only have 2x8 pci-e lanes . Not to worry as its pci-e III so NO PROBLEMS. Do ya get it? The 7970 is fast. I have zero reason to believe that NV 780 will gain as much if not more in performance increase . So if say the NV780 is 30 -35% faster. all the more reason I want 2x8 pci-e III. But as Robert who has pretty much always liked NV told me that NV won't release the top end Until AMD does a refresh . This NV CEO has a good head he is thinking all the time
 

LOL_Wut_Axel

Diamond Member
Mar 26, 2011
4,310
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read what I said again,you are saying pcie 2.0 has only 8x when you can run it at 16x and its more than enough to run 2 7970s at full speed

1 card 16x 2.0 and the other card 16x 2.0 with another 8 lanes doing nothing on a x79 board with a sandy E cpu

do you honeslty think some one with a x79 setup is going to downgrade there 6 core sandy E to take advantage of an ivy with pcie 3.0 support?

and your 8x to 16x scores are less then 1fps in most games and can easily be throw away do to + or - results from running the benchmarks at different times.

dont forget driver tweaks,whats more crazzy is how well 4x runs,a simple 2-3mhz bclk over clock would get rid of that bottle neck even at 4x

so tech we can run 3 7970s on an x79 setup

16x
16x
4x

and 4 lanes left for usb and sata etc.

You have pretty much no idea of what you're talking about from what I can see. But to educate you:

PCIe 3.0 x16=
PCIe 3.0 x8=PCIe 2.0 x16
PCIe 3.0 x4=PCIe 2.0 x8
PCIe 3.0 x2=PCIe 2.0 x4
PCIe 3.0 x1=PCIe 2.0 x2

The reason is that PCIe 3.0 supports double the bandwidth as PCIe 2.0 per lane.

Also, even though Intel doesn't officially support it, if you put a PCIe 3.0 graphics card in X79/SB-E it WILL run at PCIe 3.0.

If PCIe 3.0 x4 means a loss of over 10% in some games for the HD 7970, that means the exact same bottleneck will be in place for PCIe 2.0 x8 since they deliver exactly the same amount of bandwidth. It's about the bandwidth, not the number of lanes.
 

LOL_Wut_Axel

Diamond Member
Mar 26, 2011
4,310
8
81
Isn't 5% higher clock potential a little conservative, going from 32nm to 22nm plus flipflop transistors or whatever they are called?

Nope. The Sandy Bridge architecture won't go much higher in terms of clocks, the reason being the short pipeline.
 

Nemesis 1

Lifer
Dec 30, 2006
11,366
2
0
Op I see a lot of replies . Want some advice don't listen to these guys. Intel said what to expect with normalized clocks . Ya have to understand . If it was AMD these same people would be saying 50% better performance . None have been right since the P4P other than a few . Even when intel posted the scores back in 06 they called it intel marketing . Figure between 15-20% average depending on the programms selected to bench with. IN gaming its not a bunch of differant games Thats the only way most could close intels lead on AMD . Run all the games ya want . but than average the games . Than added the average to rest of selected benchmarks. After all the cpu means nothing in gaming according to so many here. So one most average gaming to get a true performance increase.
 
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Nemesis 1

Lifer
Dec 30, 2006
11,366
2
0
Nope. The Sandy Bridge architecture won't go much higher in terms of clocks, the reason being the short pipeline.

Are you saying IVB won't hit 6 ghz on a golden chip . What is the pipes on SB . I haven't every heard intel say I have read 14 . I am hoping and its likely not going to happen I was hoping for Haswell to have pipes 18 I believe thats what P4C had. so your doing the tlking . So your saying and this is what your saying . On air SB gets 4.5 ghz as a normal good O/C . Your saying on IVB air were only going to get 4.725 ghz average . Would you like to wager on that . I will put my present SB system up against yours that 10-20% is gotten . That would be just under 5ghz with a 10% increase in clocks and @ 20% would be around 5.4 ghz .
 
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LOL_Wut_Axel

Diamond Member
Mar 26, 2011
4,310
8
81
]Are you saying IVB won't hit 6 ghz on a golden chip .[/B] What is the pipes on SB . I haven't every heard intel say I have read 14 . I am hoping and its likely not going to happen I was hoping for Haswell to have pipes 18 I believe thats what P4C had.


Yes, that is what I'm saying. The difference will be 100-200MHz more headroom than Sandy Bridge and no more.

Prescott (Pentium 4) has a 31-stage pipeline while Sandy Bridge/Ivy Bridge has a 14-stage pipeline. The number of pipeline stages in Intel CPUs hasn't changed for around 5 years now, when Conroe was introduced.

For Intel higher clock speeds is nowhere near as important as lowering the voltage needed to get to a target clock speed.
 
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