[闲聊] 一些关于 intel 和 AMD的传闻 from reddit

楼主: flylee (牛转乾坤)   2020-07-15 12:01:18
https://bit.ly/3h1IFTm
Charlie Demerjian 在 Susquehanna 新爆的一些料,他以前爆些有关intel的料都还蛮准的
uzzi38整理如下
.Facebook like bfloat16 and Cooper Lake <lost phone line, reconnect 10 mins later>
.Alder Lake is 14nm GPU and 10nm CPU
.Several projects - including major ones, not PCHs etc were going to be TSMC.
No divulging of codenames for now.
.Jim Keller was the one pushing for projects at TSMC?
.Jim and Murphy were butting heads as of last year on technical decisions
.No chance at 7nm volume in '21. Maybe a launch for certain projects, but volume is '22.
Was planning for H1 21 not too long ago, but no chance.
.SPR taping out in more steps than normal. Intel are taping out regardless of any bugs
they know will exist, fixing and retaping immedietly. Phone line was choppy here,
but I believe something was said along the lines of this being a very expensive yet
faster way of getting the chip ready for production,
.Apple will definitely make a full transition to ARM in 2 years.
.No specific numbers for Milan over Rome today, but 20%+ should be a minimum expectation.
Milan is on track for later this year.
.Genoa and Turin are same platform. 10 channel DDR5, CXL, PCIe Gen 5, all the good stuff.
Was already known but a re-iteration for those that want a refresher.
.COVID is having an impact on AMD pickup in servers. Projects with new server hardware were
put on hold. No boots on the ground, nobody ready to break new systems in. This will blow
over by EoY, especially with Milan coming.
.ICL-SP availability Nov -> Mar
.No chance of GNR in '22. Expect it in '23.
.Apple moving to ARM is pushing MS to get better support with ARM solutions...
but so far progress is lacklustre. Will take a while for things to change.
.Xe loses competitiveness very fast. Starts of adequate, but won't remain that way.
.Nvidia: Lacking 7nm capacity hard because of shenanigans with TSMC. TSMC just did not care
about them trying to play games with them.
.Rome security features are quite something. Only 1-3% perf hit for real security.
.Best case is SPR for security as good as Rome
.When Milan releases Intel will not have a ST lead in server
xceryx的整理如下
1) Icelake paper launched this year due to security bugs but no OEM volume until March 2021
2) 2 of 3 fabs running test line 10nm. Still issues with 10nm process.
3) Tigerlake is supposedly a better 10nm+ process but yield is still low.
4) Cooperlake is bad vs Icelake but Facebook is the primary customer for Bfloat 16 AI workload
and 4P setup
5) 4C Tigerlake with big GPU area due to low yield
6) Alderlake 10nm GPU and 14nm CPU, due to low margin
7) Sapphire Rapid is taping it out as new way of taping/steps
8) Kellar pushed hard to outsource TSMC, and that's why he was gone.
9) Apple will transition to ARM completely but MacPro will probably be around for a long time,
similar to last time they moved to x86.
10) AMD has a lot of wafer allocations due to Huawei
11) AMD proven track record of roadmap
12) AMD server share was trending below what Charlie expected, COVID being an example of customer
expanding current capacity.
13) Sapphire Rapid is likely 2022H1 as Icelake is really deploying 2021H1.
14) Intel 7nm Granite Rapid is unlikely to show up in 2022, at least 2023 due to 13).
作者: BangSaint556 (Bang!!)   2020-07-15 13:06:00
推楼上
作者: c52chungyuny (PiPiDa)   2020-07-15 13:30:00
反正处理器极限看起来也就那样了 intel要不要玩ARM搞不好有搞头现在intel已经是印度人的天下了 搞Fab这种事还是东亚民族性比较适合
作者: leung3740250 (jenius921)   2020-07-15 15:34:00
zen3 ipc能追平icl就偷笑了,milan st怎么比icl-sp强icl-sp实际上是snc和wlc的混合体然后拿spr和milan比是不是搞错了什么?按照目前spr多了amx的情况下spr很大机率是gdc,amx目前只有adl和spr才有然后你翻错了一句,‘Best case is SPR for "security" as good as Rome’,你翻漏了关键词security,正确的意思是“最好的情况下spr的‘安全性’跟milan差不多”,而不是spr跟milan差不多adl用14nm不知道是哪个平行时空gdc那个规模是要怎么用14nm做?8c rkl都比10900k还要肥了迫不得已还要砍L3
作者: appleonatree (苹果在树上)   2020-07-15 17:23:00
Nvidia前阵子不是一直放话GG太贵要下三星 新闻都有好几篇他们放话转下三星想要GG降价 GG哪鸟你那么多
作者: leung3740250 (jenius921)   2020-07-15 17:53:00
icl-sp是10+的话那我更加想不到st会输milan的理由频率和ipc都不可能会输你先看看tgl-u的频率再说icl-sp跟tgl一样是10+tgl怎么和zen 2 apu比ipc差了30%以上规模都不是一个等级的zen2 apu砍了cache自然功耗会下降,然后ipc跟着一起降你漏电率摆在那啊10+能上4.8g就已经明确告诉你漏电率没问题你说的问题是功耗限制而不是10+能不能上高频的问题不过icp-sp能耗比肯定不会乐观ipc多18%可不是电晶体多18%那么简单u系gpu没办法砍,然后据说超过150mm良率不能看4c+96eu 146mm,8c+32eu也是14x mm6c+96eu大概要160mm

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