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*** AMD "Zen" thread (inc AM4/APU discussion) ***

h4rm0ny said:
If they get the IPC even roughly up to modern levels, then that's good enough for me - What I really need for my development work is memory bandwidth and storage.
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Similar situation here - mostly memory-bandwidth-limited and the machines I use have quad-channel 1833 MHz DDR3. 8-channel DDR4 would be a serious improvement!
 
CAT-THE-FIFTH said:
It seems Zen launches in October with an 8C/16T chip is supposed to be between Broadwell and Haswell IPC:

http://wccftech.com/amd-zen-cpu-8-core-summit-ridge-launching-october/

Not sure if I can believe the IPC claim though!! It would be awesome if true!!
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I'd love it to be true, but I'd imagine it;s like the '10% gain between gens' from Intel - totally reliant on the most favourable scenario. For most uses nowhere near that good...

*shrug* we shall see, fingers crossed.
 
Well if they get out a Broadwell-E type CPU but with 8 cores instead of 6, for a similar price, people will be all over them. Skylake-E won't be out before Zen so it doesn't have to compete with that (even then, it's only ~5% faster than Broadwell to begin with).
 
Saw this on SA forums(after it was mentioned on AT forums) but OFC take with bucketloads of salt:

https://semiaccurate.com/forums/showpost.php?p=257682&postcount=2112

It seems that unlike with Bulldozer, AMD has created separate dies for server and consumer parts. The server version of the die has twice the cores, L3 cache and additional I/O controllers per die. I haven´t been able to disassemble one yet, however judging from the package size it is a MCM part. 14nm LPP process.

The relative power consumption is roughly the same as on Intel 14nm parts with similar configuration, but the clocks are quite low :/

40501415
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For a long time I actually like what I see. I´d say as long as the consumer Zen parts can reach high enough clocks (min. 3.5GHz), everything will be pretty good
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Apparently the poster who made the posts had some information on Carrizo which was correct according to that thread.
 
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CAT-THE-FIFTH said:
But he is testing a commercial high core count CPU using an MCM. So it could be something like a 32 core chip.
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Perhaps I'm reading too much into it but, he mentioned power consumption as level with Similar Intel parts but at lower clock rates and goes on to say the desktop parts should be good provided they can get reasonable clocks out of them.
It reads like he is sceptical of that.
 
humbug said:
Perhaps I'm reading too much into it but, he mentioned power consumption as level with Similar Intel parts but at lower clock rates and goes on to say the desktop parts should be good provided they can get reasonable clocks out of them.
It reads like he is sceptical of that.
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Relative power consumption and another poster with a reasonable track record said around Broadwell levels of efficiency and I have seen that chap post sometimes,and they tend to be quite careful in what they say.

The other post he made was quite interesting - it means IPC might be a bit better than what we thing. I was estimating IB level at most.

However,hopefully we will see more leaks closer the date.
 
CAT-THE-FIFTH said:
Relative power consumption and another poster with a reasonable track record said around Broadwell levels of efficiency and I have seen that chap post sometimes,and they tend to be quite careful in what they say.

The other post he made was quite interesting - it means IPC might be a bit better than what we thing. I was estimating IB level at most.

However,hopefully we will see more leaks closer the date.
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That all important word, OK. :)

I do want a 6 core 12 thread CPU with Haswell IPC that will clock to 4.4GHZ but not at Intel prices, they are at a huge premium when really they have no need to be, in this day and age a 6 core CPU is nothing special, they are run of the mill bread and butter........ It's just that Intel have kept them at premium level because they can.

Hopefully AMD will just step in with performance higher core count CPUs at prices where they should be, shake the market up and grief Intel for a change, like AMD used to........ **** Intel off no end.
They deserve it for the high premium pricing structure they have forced us to pay over however many years it's been.
I want to see some competition back, Intel have been jacking the prices up for the same products over the last few years probably knowing AMD were going to be back around this time and hope it would give AMD an opportunity to charge somewhat less of a premium but a premium none the less
I hope AMD don't see it like that, I hope AMD see an opportunity to claw back significant market share by undercutting the crap out of Intel.
And some payback, of course.
 
Struggling with clocks should come as no surprise, it's using a 1st-gen finfet node from a 3rd-rate foundry. It was never going to be a speed demon.
 
Orangey said:
Struggling with clocks should come as no surprise, it's using a 1st-gen finfet node from a 3rd-rate foundry. It was never going to be a speed demon.
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Well my 4 core 4 thread Haswell is happy running at 4.7 with 1.295v and a Kraken water cooler.

If Zen is Haswell + IPC I'd be happy with 4.4. If they can't do that there is no point, unless they are under £200 for the 6 core again.
 
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Is there a release date on these yet? or is it just all rumors?

I would love 8 core AMD system, I'm still on Ivy I5 and I'm not upgrading until we see 8 core mainstream CPU's at a decent price.
 
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