News about next Iris Pro(GT4) or Lap/Mob/Desk Broadwell?

MisterLilBig

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Apr 15, 2014
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There isn't much news about this that I can find.

Its like the iGPU will be the same in Broadwell as it was in Haswell, other than the Desktop version getting GT3e.

Was expecting more from a die shrink.
Three new ISA's, MCP design, IVR off-die and requirement of a new chipset and posibly a new PSU. Not sure about that inspiring much of an upgrade.


I at least was hoping Intel would push towards the iGPU more since it seems like its getting better and better. But, nothing yet. not even iGPU architectural comments?

Anyone expects prices to lower based on these, lesser changes?
 

IntelUser2000

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Oct 14, 2003
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I am not sure how they'll work out the iVR issue. The iVR is a critical component in achieving drastically lower idle power on the Tablet/Ultrabook parts. Also, the FiVR allows thinner form factors. I guess its possible that they'll disable it on the die and use separate one on the desktop...

iGPU will clearly be better. They call it Gen 8, when Ivy Bridge is Gen 7 and Haswell is "Gen 7.5". We'll see whether that turns out into 20% gain per replacement or 2x.
 

ShintaiDK

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Apr 22, 2012
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IGP is Gen8. Haswell is Gen7.5. Broadwell will have a much larger selection of Iris Pro parts (128MB eDRAM).

A few new instructions added. Usual smaller tweaks in the uarch.

IVR is still FIVR. Certainly not off die. Not sure where people got the false myth that FIVR should be a problem. Haswell-E and Broadwell-E will have FVIR as well. And so will all future CPUs.

Same package designs as Haswell. Same socket, same PSU etc.

Prices will be the same same as always too. Add price index correction if anything.
 

ShintaiDK

Lifer
Apr 22, 2012
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IB is Gen7. Haswell is 7.5(Also known as 7+)

intel_graphics_roadmap.png
 

ViRGE

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Oct 9, 1999
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Intel calls it Gen 7.5 in some of their documentation. Which may be an important distinction when it comes to Direct3D 12 (among other things) as only Gen 7.5 has been confirmed to support it so far.
 

mikk

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May 15, 2012
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Because it's a slightly tweaked Gen7. D3d12 support only for Gen7.5 has more to do with their driver policy. In the next driver stack Intel already dropped Ivy Bridge support. And old driver stacks won't get new features.
 

witeken

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Dec 25, 2013
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But Haswell just has more EUs. So it's like both GTX 600 and 700 series are Kepler, both Ivy Bridge and Haswell are Gen7.

@Above: thinks for clarifications, if there are minor differences, I guess it makes sense to call is .5.
 

mikk

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But Haswell just has more EUs.


It's not just more EUs. Gen7.5 has a an improved Uncore which includes the Tessellator and Command Streamer has been added. Intel claims they doubled most of the fixed function units, it was necessary in order to feed the bigger GT3 variants. Intel also improved the sampler throughput for some samples modes and also added some Quicksync enhancements and improvements. Video Quality engine is completely new. It's a slightly tweaked Gen7, therefore they called it Gen7.5 to make a differentiation.
 

IntelUser2000

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I hope its more than that, or else Nvidia would be formidable enough to take share away from integrated.

The new Maxwell GPUs kick the Iris parts in performance/watt! Who'd have thought a discrete part would do that to an iGPU?

Anything short of a 2x gain(+ the availability of a GT4 on top of that) would be a disappointment.

The rumors are that the GPU in Broadwell will be 4x perf/watt and that kinda makes sense based on the fact that 14nm Atom basically has Haswell Ultrabook GPU. Now that 4x gain in the low power range might turn out 20% in high voltage. We don't know.
 

Fjodor2001

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Feb 6, 2010
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And Skylake is confirmed now for H2 2015.

Source for that? Also, is it when production starts, or when it actually can be bought in the shops?

And does it include the expected delay that has occurred for the previous 4 Intel CPU generations (SB, IB, H, BW)? ;)
 
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witeken

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Source for that? Also, is it when production starts, or when it actually can be bought in the shops?

And does it include the expected delay that has occurred for the previous 4 Intel CPU generations (SB, IB, H, BW)? ;)

Q1 2014 conference call:

We had a lot going on -- the ramp of Broadwell, the ramp of Skylake in the second half of next year, plus bringing these products inside.
 

mikk

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http://www.phoronix.com/scan.php?page=news_item&px=MTY2NTQ

interesting info. not sure what the real world usage is for decoding multiple video decoding streams. can someone explain that


I often heard that the decoding engine of Haswell can be a bottleneck over the encoding engine. With faster and faster MFX engines and more EUs this can be an issue for transcoding, so they beefed up the decoding engine. This could be a transcoding monster. Also Broadwell supports H265 decoding which might require stronger decoding units.
 

Fjodor2001

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Q1 2014 conference call:
We had a lot going on -- the ramp of Broadwell, the ramp of Skylake in the second half of next year, plus bringing these products inside.

So 2015H2 is when they'll start mass volume production.

Broadwell mass volume production started 2014Q1 and it will be available 2014Q4. So 3Q after production started. I.e. Skylake will likely be available in the shops 2016Q2 or 2016Q3, assuming mass volume production starts 2015H2.

And that is unless any delay occurs. Based on Intel's track record for the previous 4 CPU generations (SB, IB, H, BW) there's always been a ~3 month delay. So to sum it up, expect Skylake to be available in the shops around 2016Q3 to 2016Q4.
 

erunion

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Jan 20, 2013
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So 2015H2 is when they'll start mass volume production.

Broadwell mass volume production started 2014Q1 and it will be available 2014Q4. So 3Q after production started. I.e. Skylake will likely be available in the shops 2016Q2 or 2016Q3, assuming mass volume production starts 2015H2.

And that is unless any delay occurs. Based on Intel's track record for the previous 4 CPU generations (SB, IB, H, BW) there's always been a ~3 month delay. So to sum it up, expect Skylake to be available in the shops around 2016Q3 to 2016Q4.


That's some pretty terrible math.
Skylake will not be 2 years later than broadwell.
Its not even a new node.
 

Fjodor2001

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That's some pretty terrible math.
Skylake will not be 2 years later than broadwell.
Its not even a new node.

It's ~1Y3Q, quite close to the ~1Y2Q period between the latest Intel CPU releases. So yes, quite likely. Neither Intel, nor the OEMs, would accept a much narrower sales window than that.
 

Sweepr

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It's ~1Y3Q, quite close to the ~1Y2Q period between the latest Intel CPU releases. So yes, quite likely. Neither Intel, nor the OEMs, would accept a much narrower sales window than that.

You're assuming desktop Broadwell will replace Haswell all across the board, while most likely it will be restrictted to K-models only, so H2-2015 release for Skylake parts would put them 2 years after Haswell-based Core i3 & non-K i5/i7 desktop chips. Mobile versions could launch a bit later than desktops this time, Q3/2015 for first desktop Skylake and mobile parts by late Q3/Q4 is my guess (that would be around 1 year later than first mobile Broadwell-Y/U parts).
 

Fjodor2001

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You're assuming desktop Broadwell will replace Haswell all across the board, while most likely it will be restrictted to K-models only, so H2-2015 release for Skylake parts would put them 2 years after Haswell-based Core i3 & non-K i5/i7 desktop chips. Mobile versions could launch a bit later than desktops this time, Q3/2015 for first desktop Skylake and mobile parts by late Q3/Q4 is my guess (that would be around 1 year later than first mobile Broadwell-Y/U parts).

So a 6-9 months sales window for desktop Broadwell-K? Keep on dreaming. :p
 

Sweepr

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Q4 2016 launch would be ''dreaming''.
I just don't think 1 or 2 niche Broadwell-K models will postpone the replacement of dozens of 2 year old Haswell-based desktop chips. Just my opinion. :p