Intel "Haswell" Speculation thread

Page 16 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
I wouldnt put my faith in that articles content.

Singlechannel memory controller, thats a funny one too. Talk about prank.

And even IB Us support 32GB memory, why would Haswell go backwards.
 
Last edited:

TuxDave

Lifer
Oct 8, 2002
10,572
3
71
I wouldnt put my faith in that articles content.

Singlechannel memory controller, thats a funny one too. Talk about prank.

And even IB Us support 32GB memory, why would Haswell go backwards.

I'm just speculating at this point but in cases like the Windows 8 Surface, if it saves power, would you still demand 32GB of memory and >dual channel memory?
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
I'm just speculating at this point but in cases like the Windows 8 Surface, if it saves power, would you still demand 32GB of memory and >dual channel memory?

Supporting 16GB or 2000GB memory doesnt conserve anything.
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
What about the extra memory controller?

Its not gonna save much, since the main power draw is in the DIMMs density. And the iGPU will die due to bandwidth starvation. Even CPU will be affected. So it would be better to keep dualchannel and simply axe it to a GT1 or lower frequency 100Mhz.
 

TuxDave

Lifer
Oct 8, 2002
10,572
3
71
Its not gonna save much, since the main power draw is in the DIMMs density. And the iGPU will die due to bandwidth starvation. Even CPU will be affected. So it would be better to keep dualchannel and simply axe it to a GT1 or lower frequency 100Mhz.

I agree with your line of thinking but since this is a pure speculation thread, if GT2 w/ a single memory controller = GT1 performance, they probably would have done that. So I would guess that for the segment and the performance they wanted out of it, Intel had to stay with GT2 and cut off the extra memory controller and it still got the performance it needs.

I know first hand (several years ago) chopping memory controllers was interesting enough for chip power purposes. Interesting enough since the analog circuits draw significantly more power than the digital circuits around them. May as a % of the platform it isn't large but in the industry, shaving off a couple % in one idea is a BIG deal.
 

sefsefsefsef

Senior member
Jun 21, 2007
218
1
71
Its not gonna save much, since the main power draw is in the DIMMs density. And the iGPU will die due to bandwidth starvation. Even CPU will be affected. So it would be better to keep dualchannel and simply axe it to a GT1 or lower frequency 100Mhz.

This is wrong. The main power draw in a memory system is the wires between the DIMMs and the memory controller. Eliminating a memory controller is an effective way to limit power consumption.
 

Khato

Golden Member
Jul 15, 2001
1,225
281
136
Its not gonna save much, since the main power draw is in the DIMMs density. And the iGPU will die due to bandwidth starvation. Even CPU will be affected. So it would be better to keep dualchannel and simply axe it to a GT1 or lower frequency 100Mhz.

Yet we can find how many examples of notebooks being shipped with only a single channel of memory installed? And an ultrabook with an i5-3317U running in single channel mode ends up being about 80% of one running dual channel in 3Dmark Vantage it looks like. Basically for the low power SKUs it makes sense to eliminate the memory channel as the bandwidth just isn't necessary... and it's surprisingly expensive in terms of power usage.
 

RussianSensation

Elite Member
Sep 5, 2003
19,458
765
126
So not for me...not paying for an IGP...neither to Intel or AMD...

So you paid a $70-100 motherboard X79 chipset premium that could have been used towards and SSD or a faster GPU, then put up with higher power consumption of i7 3820 for no performance benefit, while missing out the Haswell launch and will be waiting X months before being asked to pay another $70-100 premium for a Haswell-E (or w/e it is) motherboard? Makes sense.
 
Last edited:

denev2004

Member
Dec 3, 2011
105
1
0
Haswell is very nice on paper but let's see those FMA units in practice before we make "double throughput" statements. Also let's see if each Haswell core can sustain 2x256bit load and 1x256bit store operations per second and by which magic will intel extend the datapaths without blowing up the die size compared to IB(note that Haswell will also have more die area dedicated to new GPU compared to IB;the leaked die shots of SB/IB/Haswell chips from chiphell only show that shown version of haswell with the new GPU is just slightly larger than QC IB chip-by which magic I might ask?)

Not...They've play this trick on Sandy Bridge, where no extra space is required for the AVX compared to Westmere for the new register file system and a new front-end. Although I have absolutely no idea where and how much other small improvements can be made this time.
 

Lonbjerg

Diamond Member
Dec 6, 2009
4,419
0
0
So you paid a $70-100 motherboard X79 chipset premium that could have been used towards and SSD or a faster GPU, then put up with higher power consumption of i7 3820 for no performance benefit, while missing out the Haswell launch and will be waiting X months before being asked to pay another $70-100 premium for a Haswell-E (or w/e it is) motherboard? Makes sense.

No, I am still rocking on my X58 / i7 920 @ 3.5 Ghz purchased at launch
The longest I have had a PC (CPU/Mobo without upgrading)
Changed GPU a couple of times...that's it.

So I will wait for Hasswell-E.
Like I said...I will not pay (and thus support IGP efforts) for any IGP from any vendor.

I vote with my wallet...and my vote is NOT for IGP's...simpel as that.

And your talk about powerconsumption is quite funny.
Look thorugh my posting history.
That is a type of metric I really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really don't give a *beeep* about.

Just like perf/watt.

Performance is my metric..the rest is just static to me.
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
3,785
136
Singlechannel memory controller, thats a funny one too. Talk about prank.

The point of a single channel memory SKU is likely for costs, so they can have $699 Ultrabooks they promised with Haswell. That's what you get with cheaper Ultrabooks, and strategy continues. Ivy Bridge GT2 Ultrabook has single channel DDR, why not Haswell? Plus it probably saves on bit of area as well.
 

Lonbjerg

Diamond Member
Dec 6, 2009
4,419
0
0
Well, when heterogeneous computing comes in full swing (quick sync etc)... I'm sure buying a chip with IGP will start counting as performance for you.

Wake me up when you have more than "in the future"...

In the future I still don't wan't to waste CPU-diespace on a IGP.
I'll buy a GPU...get over that I don't think IGP's are of any use for me.

Hence my money will only buy CPU's that is free of crappy IGP's
 
sale-70-410-exam    | Exam-200-125-pdf    | we-sale-70-410-exam    | hot-sale-70-410-exam    | Latest-exam-700-603-Dumps    | Dumps-98-363-exams-date    | Certs-200-125-date    | Dumps-300-075-exams-date    | hot-sale-book-C8010-726-book    | Hot-Sale-200-310-Exam    | Exam-Description-200-310-dumps?    | hot-sale-book-200-125-book    | Latest-Updated-300-209-Exam    | Dumps-210-260-exams-date    | Download-200-125-Exam-PDF    | Exam-Description-300-101-dumps    | Certs-300-101-date    | Hot-Sale-300-075-Exam    | Latest-exam-200-125-Dumps    | Exam-Description-200-125-dumps    | Latest-Updated-300-075-Exam    | hot-sale-book-210-260-book    | Dumps-200-901-exams-date    | Certs-200-901-date    | Latest-exam-1Z0-062-Dumps    | Hot-Sale-1Z0-062-Exam    | Certs-CSSLP-date    | 100%-Pass-70-383-Exams    | Latest-JN0-360-real-exam-questions    | 100%-Pass-4A0-100-Real-Exam-Questions    | Dumps-300-135-exams-date    | Passed-200-105-Tech-Exams    | Latest-Updated-200-310-Exam    | Download-300-070-Exam-PDF    | Hot-Sale-JN0-360-Exam    | 100%-Pass-JN0-360-Exams    | 100%-Pass-JN0-360-Real-Exam-Questions    | Dumps-JN0-360-exams-date    | Exam-Description-1Z0-876-dumps    | Latest-exam-1Z0-876-Dumps    | Dumps-HPE0-Y53-exams-date    | 2017-Latest-HPE0-Y53-Exam    | 100%-Pass-HPE0-Y53-Real-Exam-Questions    | Pass-4A0-100-Exam    | Latest-4A0-100-Questions    | Dumps-98-365-exams-date    | 2017-Latest-98-365-Exam    | 100%-Pass-VCS-254-Exams    | 2017-Latest-VCS-273-Exam    | Dumps-200-355-exams-date    | 2017-Latest-300-320-Exam    | Pass-300-101-Exam    | 100%-Pass-300-115-Exams    |
http://www.portvapes.co.uk/    | http://www.portvapes.co.uk/    |