FWIW, here is my take. IBM corporate management said in no uncertain terms to get the merger deal done. IBM technical management said they had to maintain among other things access to the 14nm eDRAM process. They spent big bucks JOINTLY developing it as well as needing it for mainframe and...
I thought some here estimated about 270mm^2 for all the I/O stuff on the hub chip. If so, then 256MB of 14nm eDRAM L4 will be about 150mm^2 and WILL fit. My question is would AMD design it in a thick box partially depleted SOI process? They used to use such a process at 28nm. So they surely are...
nextplatform.com
very interesting article about buffered memory for Power 9 (Centaur tech)
...snip "We really want to attach our memory with a SERDES design, with differential signaling. So we really want to get to a SERDES solution to talk to the outside world" It's not clear how much of...
the 12nm process was almost entirely a PROCESS upgrade that did not require any substantial re-design. If I remember, the main change (among others) was an optimized fin etch profile and a 4nm reduction in DIBL allowing shorter minimum channel length.
I just realized the 14nm Global process with embedded DRAM as used for IBM Power 9 is on thick SOI. The process would look different on bulk and is more complex. I doubt very much AMD would design their hub chip in partially depleted SOI with thick BOX. So I'd have to say the eDRAM is not...
That sounds good. And perhaps a different I/O chip for high end gaming by replacing the iGPU with L4 cache and using a 8 core chiplet. All 14nm I/0 chip designs would be pretty cheap these days at GF. I suspect.
it's 16MB L4 buffer on EACH of (8) Centaur chips (one for each memory channel) or 128MB if they did it on one hub chip.
https://www.anandtech.com/show/9567/the-power-8-review-challenging-the-intel-xeon-/7
this was on Power 8 and done in 22nm SOI. Power 9 was done in 14nm FinFET. I suspect...
perhaps eDRAM similar to Centaur technology on Power 9. It could be 256MB or possibly even 512MB on the 14nm process with eDRAM used for the memory hub chip on Power 9. Global owns the process since the IBM Micro/GF merger. Your thoughts?
https://en.wikichip.org/wiki/ibm/centaur
baby, you just ain't seen nothing yet!
https://www.youtube.com/watch?v=7miRCLeFSJo
AMD at Computex. Lisa was just glowing about 7nm EPYC 2 results in the lab. She claims sampling to customers very soon. It looks like an April 2019 launch could be a lock. Having known Lisa well, that is about...
LOOK AT THIS. This is the NEW EPYC based 2RU Cisco box. It contains (4) 2 socket nodes or 4x64cores/node = 256 cores.
The corresponding Intel 2RU configuration contains (2) 2 socket nodes or 2X56cores/node =112 cores.
The corresponding Intel 4RU configuration contains (4) 2 socket nodes or...
youtube.com
AMD's "Starship". It's also known as Rome.
It's 48C / 96T on 7nm technology. It's coming to venders near you in early 2019.
Nothing's Gonna Stop Us Now.
https://www.semiwiki.com/forum/content/7496-imec-technology-forum-gary-patton-globalfoundries.html
It sounds like Agnello and the IBM folk did OK. I worked for Patton for a while in the 90s. He is pretty good also. Based on this, it looks like GF is on schedule to begin (as fast follower...
Thanks. FWIW, here's some more stuff to chew on. Remember, Intel uses base frequency to define their TDP. Let's assume they stay consistent with what ever program they use to tax all the cores and define core frequency at a given TDP. They had to drop the core frequency from 4.2GHz to...
Sorry. You are right. I've been told as much by others before and elsewhere. I will make an effort to comply. It's just that I guess I think in a conversational tone and I post my ideas that way. Is this better? No dots!
P ~ 1/2 f CV^2 for each core
.........just look at the core size comparison of (NEW design) Ryzen and (OLD design) Skylake cores..........forget about anything else.....would it not be obvious that for very similar IPC and at the same operating voltage ......that AMD would have an advantage...
Thank you.......finally some one who is willing to hang some numbers along side his "'alias"..........but what actually does all core turbo really mean?.... I just found this:
"Intel’s Coffee Lake Core i7-8700K has launched, earning our top CPU recommendation at its price point. But there’s one...
...."short time they had to plan" ??...........would not the large increase (14nm) in the contacted poly pitch they did in going from 14nm+ to 14nm++ require a full logic block redesign?......(any designers here who can comment?)...............if so, that's no short time plan
OK............got it........I was wrong then............so what do you predict for 8 core?....(freq and power).....why did they even bother then with a 6 core if 8 core all core turbo could go higher than 8C all core AMD 2700X?
forget turbo.........I understood you PERFECTLY.....it is you who did not understand me..............Intel dropped all core freq. from 4.2GHz on 4 core to 3.7GHz on 6C and still raised the power a bit . Since 8C and 6C both have the 14nm++ device, why do you think they will not have to lower...
...yep...2.6GHz all core can't be right........but they did have to lower all core freq a lot when they went to 6C from 4C......why will it be different going to 8C?...........they both have the 14nm++ device.....Explain
...that makes sense.......it's a low power part..........2.6GHz all core was too hard to believe..........so when do we see Intel's 8C competitor to AMD 2700X at 3.7GHz all core?
I can't believe it's as bad as 2.6GHz all core..........it has to be a chip set/mother board issue................I'd guess with the new (Z390 series) motherboard release, they could reach maybe 3.5GHz all core but probably at at least 110W..........
ZEN 2 taped out in 2017 in Dec at the latest.....but possibly as early as mid Oct.......Lisa said the design is complete and they will sample to customers later this year....I take that to mean they have already re-spun the first silicon and are now satisfied with the design. If they...
Genuine Intel(R) CPU 0000 @ 2.60GHz (8C 16T 2.59GHz, 8x 256kB L2, 16MB L3)
....2.6GHz all core????? when AMD is at 3.7GHz all core on 2700X with a likely 2800X in reserve??................can't be that bad....must be a chipset issue......dam them Core cores are power hungry........like I've...
....OK......I looked at all this again and want to update my guess.....FWIW.....I'm thinking now AMD plays it safe on ZEN 2 and goes 12 core and doubles the L3 cache plus adds the AVX 512 extensions. I didn't realize ZEN 3 is only a year behind........so now I think they go 16 core on ZEN...
FWIW....more things to consider: Intel Coffee Lake I7 8700K 95W 6 core 3.7/4.7 (~150mm) gives us the first look at 14nm++............we can compare with Ryzen 2700X 8 core 3.7/4.3 105W 210mm^2..........I7 still a bit faster in single thread but trails in multi thread performance..."In AMD’s...
...of course you could be right.....but is the ~235W at the same freq (s) (nominal and turbo) as EPYC 1?.......It could well be higher for competitive reasons or because the process sweet spot is at somewhat higher freq than Samsung 14nm......I'm just guessing.
it does look like AMD will do 64C /16MB/core / 225mm^2 chip and a 4 chip MCM at less than 175W. Their Power vs Freq curves suggest as much. What is Intel's best response to this in a monolithic die at 10nm?............since active Power goes as 1/2fCV^2.......and I don't see Intel dropping the...
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