AMD CPU speculation... and expert conjecture

[8350rocks]

Mantle from AMD allows one gpu per eye 3D rendering, Star Citizen will be including it:

http://www.mtbs3d.com/index.php?option=com_content&view=article&id=14423:amd-talks-latency-vr-freesync-and-more-at-ces-2015&catid=35&Itemid=73

I am sure Palladin will be happy about that once it becomes more common place.

 

[8350rocks]

The MintBox Mini is a silent, quad-core Linux Mint PC that fits in your pocket
http://www.pcworld.com/article/2871328/the-mintbox-mini-is-a-silent-quad-core-linux-mint-pc-that-fits-in-your-pocket.html

crapload of wccfudtech rumors

AMD Allegedly Preparing 28nm Trinidad GPU To Replace Curacao Pro – Arrives In March, Features 2 GB VRAM and 256-bit Bus
http://wccftech.com/amd-allegedly-preparing-28nm-trinidad-gpu-replace-curacao-pro-arrives-march-features-2-gb-vram-256bit-bus/
AMD Carrizo Benchmarks Leaked – Double The Performance of Kaveri
http://wccftech.com/amd-carrizo-graphics-benchmarks-leaked-double-performance-kaveri/

my past posts have gotten lost during submission. fingers crossed for this one....

I was going to point out the texture fill numbers in the SiSoft benchmarks, however, looks like wccftech at least got the benchmark commentary correct.

Carrizo will have massive iGPU included, aimed specifically at mobile/ULP designs, and will probably have the top part coming in around ~65W at most.

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

 

[de5_Roy]

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

is that upcoming sku/new apu/soc different for the updated display controller logic, new codecs, vce updates and.... stacked cache/hbm? hmm? i speculate so...

 

[de5_Roy]

still can't edit.
here's an addendum to my prev. post:
carrizo seems to have snipped pcie gen support to second gen and down from 16 lanes. i guess the upcoming dt part will have full 16x (or is it 20x? ) gen 3.0 lanes as well as cfx/sli support in it's integrated chipset...?

 

[juanrga]

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

is that upcoming sku/new apu/soc different for the updated display controller logic, new codecs, vce updates and.... stacked cache/hbm? hmm? i speculate so...

Firmware changes to Kaveri, a more mature node, and little more. There is nothing like "stacked cache/hbm".

 

[szatkus]

The MintBox Mini is a silent, quad-core Linux Mint PC that fits in your pocket
http://www.pcworld.com/article/2871328/the-mintbox-mini-is-a-silent-quad-core-linux-mint-pc-that-fits-in-your-pocket.html

crapload of wccfudtech rumors

AMD Allegedly Preparing 28nm Trinidad GPU To Replace Curacao Pro – Arrives In March, Features 2 GB VRAM and 256-bit Bus
http://wccftech.com/amd-allegedly-preparing-28nm-trinidad-gpu-replace-curacao-pro-arrives-march-features-2-gb-vram-256bit-bus/
AMD Carrizo Benchmarks Leaked – Double The Performance of Kaveri
http://wccftech.com/amd-carrizo-graphics-benchmarks-leaked-double-performance-kaveri/

my past posts have gotten lost during submission. fingers crossed for this one....

I was going to point out the texture fill numbers in the SiSoft benchmarks, however, looks like wccftech at least got the benchmark commentary correct.

Carrizo will have massive iGPU included, aimed specifically at mobile/ULP designs, and will probably have the top part coming in around ~65W at most.

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

Kaveri refresh ( http://www.fudzilla.com/news/processors/36738-amd-has-kaveri-refresh-for-desktops ) or something new (Basilisk?)?

 

[juanrga]

No. I gave you the link as simple example of the cubic law being quoted. The cubic law appears in books and papers dealing with CPU design, which evidently you did never read. I also give you the figures with data measured for a real processor: a SB i7. Of course the cubic law also applies to AMD designs. It is the reason why a FX-CPU @ 4GHz is rated at 125W, whereas the same CPU @ 4.7GHZ is rated at 220W.

It's cubic with respect to V^2 * F. As the article and pictures you linked showed.

It is cubic only as approximation. Your mistake was that you treated voltage and frequency as independent quantities, but V = V(F)

You're the only person I've ever seen try to simplify the equation down even further to F^3.

This simply reflects your lack of familiarity with the topic. My last work on CPUs (Dec 2014) has a nice list of references that use the F^3 version for basic CPU modeling. My article also explains how to derive the cubic law from a slight generalization of the formula that you quoted from Wikipedia.

The cubic dependence of power with frequency also appears quoted in books

https://books.google.es/books?id=LZX00sPWqIYC&pg=PA35&lpg=PA35&dq=power+cubic++frequency+cpu&source=bl&ots=EYQhiDVNl-&sig=sLq9MPZJ7QeAf73e7n-vUwSlvAc&hl=en&sa=X&ei=sUW9VNW1JInrUortguAC&redir_esc=y#v=onepage&q=power%20cubic%20%20frequency%20cpu&f=false

Some Carrizo models will be clocked lower (compared to Kaveri) increasing efficiency.

 

[juanrga]

The MintBox Mini is a silent, quad-core Linux Mint PC that fits in your pocket
http://www.pcworld.com/article/2871328/the-mintbox-mini-is-a-silent-quad-core-linux-mint-pc-that-fits-in-your-pocket.html

crapload of wccfudtech rumors

AMD Allegedly Preparing 28nm Trinidad GPU To Replace Curacao Pro – Arrives In March, Features 2 GB VRAM and 256-bit Bus
http://wccftech.com/amd-allegedly-preparing-28nm-trinidad-gpu-replace-curacao-pro-arrives-march-features-2-gb-vram-256bit-bus/
AMD Carrizo Benchmarks Leaked – Double The Performance of Kaveri
http://wccftech.com/amd-carrizo-graphics-benchmarks-leaked-double-performance-kaveri/

my past posts have gotten lost during submission. fingers crossed for this one....

I was going to point out the texture fill numbers in the SiSoft benchmarks, however, looks like wccftech at least got the benchmark commentary correct.

Carrizo will have massive iGPU included, aimed specifically at mobile/ULP designs, and will probably have the top part coming in around ~65W at most.

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

Kaveri refresh ( http://www.fudzilla.com/news/processors/36738-amd-has-kaveri-refresh-for-desktops ) or something new (Basilisk?)?

Basilisk was canceled.

 

[szatkus]

The MintBox Mini is a silent, quad-core Linux Mint PC that fits in your pocket
http://www.pcworld.com/article/2871328/the-mintbox-mini-is-a-silent-quad-core-linux-mint-pc-that-fits-in-your-pocket.html

crapload of wccfudtech rumors

AMD Allegedly Preparing 28nm Trinidad GPU To Replace Curacao Pro – Arrives In March, Features 2 GB VRAM and 256-bit Bus
http://wccftech.com/amd-allegedly-preparing-28nm-trinidad-gpu-replace-curacao-pro-arrives-march-features-2-gb-vram-256bit-bus/
AMD Carrizo Benchmarks Leaked – Double The Performance of Kaveri
http://wccftech.com/amd-carrizo-graphics-benchmarks-leaked-double-performance-kaveri/

my past posts have gotten lost during submission. fingers crossed for this one....

I was going to point out the texture fill numbers in the SiSoft benchmarks, however, looks like wccftech at least got the benchmark commentary correct.

Carrizo will have massive iGPU included, aimed specifically at mobile/ULP designs, and will probably have the top part coming in around ~65W at most.

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

Kaveri refresh ( http://www.fudzilla.com/news/processors/36738-amd-has-kaveri-refresh-for-desktops ) or something new (Basilisk?)?

Basilisk was canceled.

Source?

 

[juanrga]

New benchmarks: http://www.sisoftware.eu/rank2011d/show_system.php?q=cea598aa98af9ba391b7d0edc0f1d7a598a88ee7daebcda598ad8bf3ceffd9bcd9e4d4f281bc84&l=en

This time 2.5GHz/3.5GHz

Turbo is 3.4GHz.

The base frequency is also wrong. It is 2.1GHz.

This Carrizo sample gives about 15% more GOPS than Kaveri.

 

[szatkus]

New benchmarks: http://www.sisoftware.eu/rank2011d/show_system.php?q=cea598aa98af9ba391b7d0edc0f1d7a598a88ee7daebcda598ad8bf3ceffd9bcd9e4d4f281bc84&l=en

This time 2.5GHz/3.5GHz

Turbo is 3.4GHz.

The base frequency is also wrong. It is 2.1GHz.

This Carrizo sample gives about 15% more GOPS than Kaveri.

Just default clock. You know, CPU clocks can be changed :>

 

[juanrga]

New benchmarks: http://www.sisoftware.eu/rank2011d/show_system.php?q=cea598aa98af9ba391b7d0edc0f1d7a598a88ee7daebcda598ad8bf3ceffd9bcd9e4d4f281bc84&l=en

This time 2.5GHz/3.5GHz

Turbo is 3.4GHz.

The base frequency is also wrong. It is 2.1GHz.

This Carrizo sample gives about 15% more GOPS than Kaveri.

Just default clock. You know, CPU clocks can be changed :>

Either was overclocked or Sandra is reading wrong the clocks of the sample. I hope is the latter, otherwise would be slower than Kaveri.

 

[logainofhades]

This part will have a tough time fighting Intel's recent Core i5, Core i3 Haswell refresh desktop offerings, but it helps that Broadwell won’t be making its way to desktop

WTF? I have never seen any mention that Broadwell won't be on desktop.

 

[jdwii]

how about tequila ? metro is a overlay and can be easily changed back to standard windows view, try win 10 i think you will like it.

Downloaded the technical preview. Gonna give it a try, as soon as I can find me a spare HDD, that I do not mind wiping.

I'm sure you know but keep in mind they have a keylogger installed. Also i did benchmarks way back 10 performs like 8.1 however with my Nvidia drivers i was getting lower performance in games(10-15fps loss i actually made youtube videos proving it)

Overall those problems will be fixed and i found 10 to be quite nice and with directx 12 i'm sure it will become the new 7 for gamers. I did hear they were going to get rid of the control panel if so that would suck and i have to wonder why they can't just leave things alone and JUST improve performance-battery life-security.

 

[jdwii]

This part will have a tough time fighting Intel's recent Core i5, Core i3 Haswell refresh desktop offerings, but it helps that Broadwell won’t be making its way to desktop

WTF? I have never seen any mention that Broadwell won't be on desktop.

Who said that? I was under the conclusion that it will be and Intel even bragged about it being supported under their current Z97 platform.

 

[gamerk316]

This part will have a tough time fighting Intel's recent Core i5, Core i3 Haswell refresh desktop offerings, but it helps that Broadwell won’t be making its way to desktop

WTF? I have never seen any mention that Broadwell won't be on desktop.

Been known (or speculated) for a while now; early rumors had Broadwell being BGA only. Skylake is the next major architecture to look forward to.

 

[logainofhades]

I did not know about the key logger. 10 seems ok. The tiles, in the start menu, can be useful, but are still fugly.

The Broadwell claim was in that fudzilla article linked above.

 

[jdwii]

I did not know about the key logger. 10 seems ok. The tiles, in the start menu, can be useful, but are still fugly.

The Broadwell claim was in that fudzilla article linked above.

Yeah luckily you can just unpin those tiles and have a start menu that looks like a ugly windows 2000 one. I mean why did they get rid of Aero?

Overall i use 8.1 and i just taught myself to use the windows explorer icon which i liked to call the my computer icon on 8.1 since it gives you that location one thing they changed in 10 which i liked.

 

[Cazalan]

It is cubic only as approximation. Your mistake was that you treated voltage and frequency as independent quantities, but V = V(F)

It's an approximation only valid when V = F. Then you link a graph where F goes up past 4Ghz, and you can be darn sure that the Vcore was not 4V, which makes it a broken and gross approximation. The CPU would fry. You're not going to get very far in engineering if you can't admit simple mistakes. Keep digging yourself in a deeper hole.

 

[Cazalan]

Samsung pushing forward with FD-SOI @ 28nm and 14nm.

https://www.semiwiki.com/forum/content/4194-fdsoi-jump-start-2015-tokyo-week.html

 

[anxiousinfusion]

AMD doesn't have the money to do a second die on a different process. In fact it seems that no Kaveri refresh (a la Richland) is coming. It seems that AMD will release some new Kaveri models, but without anything really new.

Firmware changes to Kaveri, a more mature node, and little more. There is nothing like "stacked cache/hbm".

I was going to argue contradiction but then realized that by a la Richland you meant small tweaks on the architectural level. So a refresh would entail higher frequencies on nearly identical parts? Or even just higher binned parts?

I was going to point out the texture fill numbers in the SiSoft benchmarks, however, looks like wccftech at least got the benchmark commentary correct.

Carrizo will have massive iGPU included, aimed specifically at mobile/ULP designs, and will probably have the top part coming in around ~65W at most.

There is another part coming for DT, different codename, will not be the same as the ULP parts scaled upwardly.

Zen and K12 still in the works...

I have a strange feeling that 'different codename' is Kaveri or some clever play on the word.

 

[-Fran-]

It is cubic only as approximation. Your mistake was that you treated voltage and frequency as independent quantities, but V = V(F)

It's an approximation only valid when V = F. Then you link a graph where F goes up past 4Ghz, and you can be darn sure that the Vcore was not 4V, which makes it a broken and gross approximation. The CPU would fry. You're not going to get very far in engineering if you can't admit simple mistakes. Keep digging yourself in a deeper hole.

Stop there with Juan. Physicists love to say "the earth has no mass" and "assume the earth as a dot", so Juan can assume whatever he wants. Even flying cows. I don't care. Just don't drag that argument for everyone's sake 8)

Cheers!

 

[jdwii]

Lol did you just put down Physicists? ^^^^^-^^^^^

Wow, well Sheldon has something to say about that.

https://www.youtube.com/watch?v=61FasQ6KQCI#t=71

 

[8350rocks]

Samsung pushing forward with FD-SOI @ 28nm and 14nm.

https://www.semiwiki.com/forum/content/4194-fdsoi-jump-start-2015-tokyo-week.html

Hmm...Samsung is going to offer 14nm FD-SOI in their foundry? Really?

Someone here said FD-SOI was dead. Who was it??? I am trying to remember, but memory is failing at the moment.

I think Samsung just partnered with a big chipmaker too...gosh, all the recent news, I cannot recall who it was.

Oh well...I must be senile.

 

[gamerk316]

For those of you confused about the new memory tech coming out in the next few years:

http://www.extremetech.com/computing/197720-beyond-ddr4-understand-the-differences-between-wide-io-hbm-and-hybrid-memory-cube