Thursday, April 23rd 2015
AMD to Skip 20 nm, Jump Straight to 14 nm with "Arctic Islands" GPU Family
AMD's next-generation GPU family, which it plans to launch some time in 2016, codenamed "Arctic Islands," will see the company skip the 20 nanometer silicon fab process from 28 nm, and jump straight to 14 nm FinFET. Whether the company will stick with TSMC, which is seeing crippling hurdles to implement its 20 nm node for GPU vendors; or hire a new fab, remains to be seen. Intel and Samsung are currently the only fabs with 14 nm nodes that have attained production capacity. Intel is manufacturing its Core "Broadwell" CPUs, while Samsung is manufacturing its Exynos 7 (refresh) SoCs. Intel's joint-venture with Micron Technology, IMFlash, is manufacturing NAND flash chips on 14 nm.
Named after islands in the Arctic circle, and a possible hint at the low TDP of the chips, benefiting from 14 nm, "Arctic Islands" will be led by "Greenland," a large GPU that will implement the company's most advanced stream processor design, and implement HBM2 memory, which offers 57% higher memory bandwidth at just 48% the power consumption of GDDR5. Korean memory manufacturer SK Hynix is ready with its HBM2 chip designs.
Source:
Expreview
Named after islands in the Arctic circle, and a possible hint at the low TDP of the chips, benefiting from 14 nm, "Arctic Islands" will be led by "Greenland," a large GPU that will implement the company's most advanced stream processor design, and implement HBM2 memory, which offers 57% higher memory bandwidth at just 48% the power consumption of GDDR5. Korean memory manufacturer SK Hynix is ready with its HBM2 chip designs.
71 Comments on AMD to Skip 20 nm, Jump Straight to 14 nm with "Arctic Islands" GPU Family
well power consumption is a letdown, but as for example my 290 still keep up the brand new 970 that a friend has in a quite similar setup to mine ... and the 980 is not too far above so that even a 290X can keep it in check
ok now there is the Titan X and the "upcoming" 980Ti but ... the T'X is a steal and the 980Ti is a "bend over, here it come again" scenario.
reducing the manufacturing node mean reduced power need if i am not mistaken? so maybe 14nm will be the feature that will enable Arctic Island to have a lowered power consumption
(even if Volcanic island will still be on 28nm it will still be a competitor for Maxwell and the upcoming nV cards until Arctic island is released in the wild)
i guess i will keep my 290 until the next next gen .... :roll:
personally i wonder how about the performance of new 14nm on the road
AMD need the 390X to shift the market. By 2016 Nvidia will be on their Pascal designs. June can't come soon enough for me, let alone 2016.
Absolutely no one.
Samsung wasn't even a blip on the radar until recently.
Their biggest owner, Mubadala Development, announced early this month that GloFo is already ramping up 14nm production for a client (meaning it's not even test chips)
But it's that last one that surprises, all of a sudden rumors say 1st Gen HBM is constrained, even though SK Hynix indicated client shipments started in January 2015. While this says SK Hynix is "ready" for HBM2, sure not near production but appears on track.
What's more in question is where is TSMC with 16 nm FinFET? As from some of the rumors others have been "investigating options" or at "keeping open mind" for their next shrink. Some speculate TSMC might not have full production for large power budget IC's until Q3 2016. Such a lapse might give AMD the window to get Arctic Islands parts solidly vetted at GloFo and still be ready by this time next year.
AMD is lagging that much, they needed to skip a 20nm just to make them competitive.
First, and for a long time, we heard 'Fiji' was only going to be 4GB (4x1GB). Then we heard murmurs AMD was internally battling with offering an 8GB design, even though it may hold up production and raise the price over $700. Then, we got that slide deck that included what appeared to be info fresh off the line about making 2x1GB stacks (likely meaning the bandwidth of a single 1GB stack with two connected stacks or 2x chips in a stack)...something that nobody really saw coming (HBM1 was going to be 4hi 1GB, HBM2 up to 8hi 4GB). I have little doubt this was a last-second addition/decision as they noticed peoples' concerns with 4GB per gpu (especially in crossfire) for such an expensive investment. This can be noticed by the frantic 'dx12 can combine ram from multi gpus into a single pool' coming across the AMD PR bow.
AMD really seems in a tough place with that. 4GB is likely (optimally) not enough for the 390x, especially with multi-gpu in the current landscape, but 8GB is likely a little too much (and expensive) for a single card (and I bet 390 non-x will be perfectly fine with 4GB aimed at 1440p)...it's the reason a 6GB similar-performance design from nvidia makes sense....that's just about the peak performance we can realistically expect from a single gpu on 28nm.
One more time with gusto: 28nm will get us ~3/4 of the way to 4k/8GB making sense on the whole. 14nm will pick up the slack..the rest is just gravy (in performance or power savings).
While I want 4k playability as much as anyone in demanding titles (I'm thinking a dual config on 14nm is in my future, depending on how single cards + dx12 handle the situation), I can't help but wonder if the cards built for 1440p60+ will be the big winners this go-round, as the value gap is so large. That is to say, 390 (non-x, 4GB), perhaps a cheaper gtx 980, and/or a similarly-priced salvage GM200.