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標題: [業界消息] [FW - TechPowerUp] PS4 , Powered by AMD CPU + GPU (APU ?!) [打印本頁]

作者: dom 時間: 2012-3-30 13:24 標題: [FW - TechPowerUp] PS4 , Powered by AMD CPU + GPU (APU ?!)

http://www.techpowerup.com/16326 ... rn-Islands-GPU.html

會唔會係第3 代既APU ?!

作者: qcmadness 時間: 2012-3-30 13:26

BD-based，你唔會想要

作者: dom 時間: 2012-3-30 14:20

引用:

原帖由 qcmadness 於 2012/3/30 13:26 發表
BD-based，你唔會想要

I am not sure

作者: qcmadness 時間: 2012-3-30 19:55

in fact too slow for this application
unless sony shorten the 10-year cycle

作者: dom 時間: 2012-3-30 23:19

引用:

原帖由 qcmadness 於 2012/3/30 19:55 發表
in fact too slow for this application
unless sony shorten the 10-year cycle

Maybe just Piledriver + HD7770

作者: Aware 時間: 2012-3-31 14:09

我都仲係信佢用4C Cell2多啲。

作者: qcmadness 時間: 2012-3-31 14:12

引用:

原帖由 dom 於 2012-3-30 23:19 發表

Maybe just Piledriver + HD7770

Very slow

作者: Puff 時間: 2012-4-1 13:47

AMD claims its core as modular. They could mod their "modular" architecture in order to fit Sony's requirement maybe.

Anyway, if there is no customized core, I would bet it is Steamroller-driven. As you can see, the first iteration of GCN APU is using Steamroller core. But I won't think that console designs will be the same as AMD's APU. The software stack is built from zero and they should have planned some unique features which require some special hardware blocks. Let's say... tile-based rendering with a big piece of eDRAM for less main memory bandwidth expense. It is commonly seen on console, isn't it?

[ 本帖最後由 Puff 於 2012-4-1 14:24 編輯 ]

作者: Puff 時間: 2012-4-1 13:52

引用:

原帖由 qcmadness 於 2012-3-31 14:12 發表

Very slow

Which part is slow? CPU?

作者: dom 時間: 2012-4-1 14:40

PUFF ?!!!

作者: qcmadness 時間: 2012-4-1 14:44

引用:

原帖由 Puff 於 2012-4-1 13:52 發表

Which part is slow? CPU?

both

GPU: at least Tahiti / Kepler / Sea Island derivatives
CPU: at least 4GHz+ Bulldozer / 3GHz+ SB / IVB or equivalent class with 6+ threads

作者: qcmadness 時間: 2012-4-1 15:03

引用:

原帖由 Puff 於 2012-4-1 13:47 發表
AMD claims its core as modular. They could mod their "modular" architecture in order to fit Sony's requirement maybe.

Anyway, if there is no customized core, I would bet it is Steamroller-driven. As ...

PS2: ~240mm^2 (250nm) CPU + ~280mm^2 (250nm) GPU
PS3: ~220mm^2 (90nm SOI) CPU + 260mm^@ (90nm) GPU

XBOX (short life): ~100mm^2 (180nm) CPU + ~140mm^2 (180nm) GPU
XBOX 360: ~180mm^2 (90nm SOI) CPU + ~180mm^2 (90nm) GPU

你話會唔會有<350mm^2的PS4 / new xbox CPU+GPU combo?

作者: Puff 時間: 2012-4-1 16:36

引用:

原帖由 qcmadness 於 2012-4-1 15:03 發表

PS2: ~240mm^2 (250nm) CPU + ~280mm^2 (250nm) GPU
PS3: ~220mm^2 (90nm SOI) CPU + 260mm^@ (90nm) GPU

XBOX (short life): ~100mm^2 (180nm) CPU + ~140mm^2 (180nm) GPU
XBOX 360: ~180mm^2 (90nm SOI) CPU + ...

你用呢個角度睇既話，都可以話未必會有既。Console 要 High-performance Graphics 嘛。如果 console platforms 無打算整件 heterogeneous computing SW stack 既話，咁繼續 dGPU + CPU，幾年後 shrink 做 SoC 係個合理既 ...

[ 本帖最後由 Puff 於 2012-4-1 16:47 編輯 ]

作者: Puff 時間: 2012-4-1 16:38

引用:

原帖由 dom 於 2012-4-1 14:40 發表
PUFF ?!!!

Yes, this is me.

作者: qcmadness 時間: 2012-4-1 16:44

引用:

原帖由 Puff 於 2012-4-1 16:36 發表

你用呢個角度睇既話，都可以話未必會有既。Console 要 High-performance Graphics 嘛。如果 console platforms 無打算整件 heterogeneous computing SW stack 既話，咁繼續 dGPU + CPU，幾年後 shrink 做 SoC 係個合理既 ...

除非console lifespan縮短, 否則咁係合理估算

作者: Puff 時間: 2012-4-1 16:53

引用:

原帖由 qcmadness 於 2012-4-1 16:44 發表

除非console lifespan縮短, 否則咁係合理估算

咁講再諗下，APU 既重點只係 communication overhead 短左... 當 Sony 唔打算用 eDRAM，睇翻 RSX 係 4 GDDR3 chips + 1 Logic Chip 既 MCM... Pitcairn- or Tahiti-class GPU 咪最少要 8-12 粒 GDDR5 既 MCM... 好似 ASUS Immensity 咁搞都得既

[ 本帖最後由 Puff 於 2012-4-1 17:27 編輯 ]

作者: XT 時間: 2012-4-1 17:49

引用:

原帖由 Puff 於 2012-4-1 16:53 發表

咁講再諗下，APU 既重點只係 communication overhead 短左... 當 Sony 唔打算用 eDRAM，睇翻 RSX 係 4 GDDR3 chips + 1 Logic Chip 既 MCM... Pitcairn- or Tahiti-class GPU 咪最少要 8-12 粒 GDDR5 既 MCM... 好似 AS ...

無可能

作者: Puff 時間: 2012-4-1 20:30

引用:

原帖由 XT 於 2012-4-1 17:49 發表

無可能

雖然話的確無乜可能，但係 RSX 無 eDRAM 啊。

作者: qcmadness 時間: 2012-4-1 20:36

引用:

原帖由 Puff 於 2012-4-1 16:53 發表

咁講再諗下，APU 既重點只係 communication overhead 短左... 當 Sony 唔打算用 eDRAM，睇翻 RSX 係 4 GDDR3 chips + 1 Logic Chip 既 MCM... Pitcairn- or Tahiti-class GPU 咪最少要 8-12 粒 GDDR5 既 MCM... 好似 AS ...

主要係cost down

作者: leyland1989 時間: 2012-4-2 06:34

引用:

原帖由 dom 於 2012-4-1 14:40 發表
PUFF ?!!!

the magic dragon lived by the sea

作者: Puff 時間: 2012-10-14 21:04

PS4 will probably use silicon interposers with wide I/O memory (say a quad-channel 512-bit DDR data bus per memory chip)
sosad

Perhaps we will see such feature in APU products in 2014/15...

[ 本帖最後由 Puff 於 2012-10-14 21:10 編輯 ]

作者: dom 時間: 2012-10-14 22:52

引用:

原帖由 leyland1989 於 2012/4/2 06:34 發表

the magic dragon lived by the sea

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