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[OC3D] AMD's Zen will have a "greater than 40%" IPC improvement over Excavator, says Lisa Su - Page 42

post #411 of 841
Quote:
Originally Posted by Serious_Don View Post

I can't find any sources to verify the 95W claim with any confidence. Don't forget the i7-6700k is rated 91W TDP, so this claim falls more in line with a 4 core. I don't see why AMD would advertise the power consumption of their highest end chip when speaking in terms of power consumption in an era of low power everything. 125-135W sounds more reasonable to me for an 8 core pulling 3-3.5Ghz but hey, who knows when you're getting an entirely new platform/architecture/node.

People don't seem to have any issue with using or overclocking the 32nm vishera "E" edition even though they are also 95W TDP. It's almost as if we're asking for higher power consumption now? I don't feel like having another 225W overclocked monster again biggrin.gif

I don't care what it's rated for, I care what it can handle biggrin.gif

TDP is not a power consumption number.wink.gif

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post #412 of 841
Quote:
Originally Posted by mothergoose729 View Post

If AMD can really reach haswell level of performance it will be a stunning achievement.I want to believe, but I am skeptical they can cover that much ground in one generation.

Agreed. I am somewhat less skeptical, but I still don't think they will have as good of an SMT implementation, nor as high of a clockrate. It really matters what instructions will see what type of boost. A properly targeted boost, that averages to 40% over Excavator, is better than a blanket 40%, whatever is improved is improved, type of situation... but I wholly think we have the latter rather than the former.
post #413 of 841
I certainly hope they can pull it off , but after years of also ran products , I have to say I am sceptical to say the least!
post #414 of 841
AMD has been out of the game so long I kind of forgot about them. It would be nice to have additional innovation on the desktop cpu front! Fingers crossed they get it right.
post #415 of 841
Quote:
Originally Posted by Asterox View Post

TDP is not a power consumption number.wink.gif


That actually shows how efficient in the loss of heat to consumption AMD processors are which is ideal for server environments. I'm hoping we see this efficiency in Zen. I'm not talking performance but thermal efficiency.
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post #416 of 841
Quote:
That actually shows how efficient in the loss of heat to consumption AMD processors are

No, it doesn't say anything like that at all and such a thing would violate the laws of thermodynamics. It shows that the Intel CPU's draw less power even though they have a higher "TDP" rating, which is unsurprising as the "TDP" on Intel doesn't mean the same thing as "TDP" on AMD.

For Intel it's the long-duration package power limit; a ceiling on power draw which is sometimes peaked at (depending on the SKU) and sometimes twice as high as power consumption will ever get. This is easily possible because they give numbers which are sometimes quite conservative and it also includes the power budget for the iGPU at full load which is irrelevant for CPU-only loads and for many users.

Power in is heat out - period. No such thing as one CPU drawing 1kj and outputting 800j of heat while another one draws 1kj and outputs 950j of heat. The power consumption is lower on the chart because the power consumption is lower.
Edited by Cyro999 - 1/29/16 at 10:59pm
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post #417 of 841
Quote:
Originally Posted by variant View Post

Yet one failed CPU architecture doesn't formulate some kind of pattern of a company's inability to create CPU architectures. If that was the case, Intel would never have recovered from the Pentium 4.

Phenom and Phenom II (to a lesser extent) say hi.
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post #418 of 841
I really wouldn't call Phenom a fail (well besides the early TLB bugged quads), they were a logical progression of the Athlon 64. The problem came from AMD's insistence on being the first to make a monolithic quad-core, which set them back a huge amount of time. The Phenom processors were still more or less a good buy.

Bulldozer on the other hand was a complete failure. Hot running, low IPC, and its mainboard ecosystem is a joke too, with half the motherboards incapable of running the more powerful CPUs correctly.
post #419 of 841
Quote:
Originally Posted by svenge View Post

Phenom and Phenom II (to a lesser extent) say hi.

Thuban could hold it's own against Nehalem i7's.
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post #420 of 841
AMD really needs to pull it off this time.

Jaguar works great if they can do something like Jaguar for high end .. they I will buy it.
Edited by Themisseble - 1/30/16 at 4:33am
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