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Microsoft?s Xbox 2 Architecture Unveiled

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Vette73

Lifer
Jul 5, 2000
21,503
9
0
Originally posted by: RaynorWolfcastle
ummm...those specs seem excessive. They look like an engineering no-holds-barred wishlist rather than something that's economically feasible.



Well it IS at least 1 to 2 years from being fully for-sale. So that may look like a lot NOW, but in a year when Athlon64's are 3Ghz and video cards are SUPER fast etc... it may not be that much higher then current specs style when it does come out.
 

Mani

Diamond Member
Aug 9, 2001
4,808
1
0
I'm guessing VPU = virtual processing unit. Seems like it is one cpu capable of emulating a 3-processor HT system. Off though because the article says it's only a dual-core processor capable of handling 2 threads at once. Don't know which it is.
 

RaynorWolfcastle

Diamond Member
Feb 8, 2001
8,968
16
81
Originally posted by: Marlin1975
Originally posted by: RaynorWolfcastle
ummm...those specs seem excessive. They look like an engineering no-holds-barred wishlist rather than something that's economically feasible.



Well it IS at least 1 to 2 years from being fully for-sale. So that may look like a lot NOW, but in a year when Athlon64's are 3Ghz and video cards are SUPER fast etc... it may not be that much higher then current specs style when it does come out.

3 CPUs means a lot of die space regardless of whether it's now or 3 years from now. I very much doubt they'll be using 3 CPUs in a production machine unless IBM has some excess fab space that they'd rather use for this than sit idle.

Edit: I should add that 3 CPUs also complicate the memory management and more importantly it means many, many pins/data lines. All that makes data path routing on the circuit board both complicated and expensive regardless of when it's actually delivered.
 

Ness

Diamond Member
Jul 10, 2002
5,407
2
0
Originally posted by: SunnyD
Originally posted by: bunker
Am I reading that diagram correctly? Three 3.5+ Ghz processors????

Not just 3 3.5ghz cpus, 3 POWER 976 3.5ghz cpus! I believe these are essentially the equivalent of dual core hyperthreaded cpus. That means 6 physical CPU's, + hyperthreading. So essentially 12 cpus if I read correctly. :D

I guess I'm not the only one who was floored by that.

The funny part is that, if I'm reading it correctly, it blows away any PC that is on the market or could be built on the standard budget... the problem with that is even in three years I don't think any game makers will use even a third of this power, so why waste money and jack up costs on the thing? (Unless they have some SERIOUSLY groundbreaking and monumental plans for it.
 

theNEOone

Diamond Member
Apr 22, 2001
5,745
4
81
Originally posted by: RaynorWolfcastle
ummm...those specs seem excessive. They look like an engineering no-holds-barred wishlist rather than something that's economically feasible.
isn't this always done though? by the time the xbox is manufactured (2005/2006) these specs won't be overkill any more. i.e., more "economically feasible."


=|
 

tec699

Banned
Dec 19, 2002
6,440
0
0
Originally posted by: TuxDave
Originally posted by: Howard
Who's Passions? He's been around for 4 years, and yet I don't recall seeing him...

Beats me, but he gets a 1 on his rating from me. :-D

Oh I bet he's trembling! :shocked:
 

RaynorWolfcastle

Diamond Member
Feb 8, 2001
8,968
16
81
Originally posted by: theNEOone
Originally posted by: RaynorWolfcastle
ummm...those specs seem excessive. They look like an engineering no-holds-barred wishlist rather than something that's economically feasible.
isn't this always done though? by the time the xbox is manufactured (2005/2006) these specs won't be overkill any more. i.e., more "economically feasible."


=|

see my other post about that.
 

BullsOnParade

Golden Member
Apr 7, 2003
1,259
0
0
I'm going to cry if they dont put a hdd in this one, however if they use a usb2 interface
we might yet be able to attatch a hdd to it. I hope this next gen will be as mod friendly
as the original. That ability alone has won me over.

Plus i'd guess that vpu - video processing unit not virtual processing unit.
 

Homerboy

Lifer
Mar 1, 2000
30,890
5,001
126
Originally posted by: BullsOnParade
I'm going to cry if they dont put a hdd in this one, however if they use a usb2 interface
we might yet be able to attatch a hdd to it. I hope this next gen will be as mod friendly
as the original. That ability alone has won me over.

Plus i'd guess that vpu - video processing unit not virtual processing unit.

Agreed.
Everything and anything can (eventually) be hacked though... I mean they've finally broken way with the GC and such.

Build a better man-trap...

Edit: BTW that schematic shows a HD controller. So *fingers crossed* MInd you it lists as "(built in not decided)" so hopefully they will decide to built it in or at the very least this leans towards the suggestion of external HD
 

SunnyD

Belgian Waffler
Jan 2, 2001
32,675
146
106
www.neftastic.com
Originally posted by: BullsOnParade
I'm going to cry if they dont put a hdd in this one, however if they use a usb2 interface
we might yet be able to attatch a hdd to it. I hope this next gen will be as mod friendly
as the original. That ability alone has won me over.

Plus i'd guess that vpu - video processing unit not virtual processing unit.

VPU in the CPU either is a Virtual Processing Unit, or since it's a POWER architecture, more likely Vector Processing Unit (SIMD). There would be no reason for each CPU to have a video processing unit, especially since the console has a dedicated GPU being made by ATI.
 

Linux23

Lifer
Apr 9, 2000
11,374
741
126
this doesn't look like the makings of a mass market consumer video gaming console to me. this system has to run at leat $600 from what the specs would indicate.
 

XZeroII

Lifer
Jun 30, 2001
12,572
0
0
Originally posted by: ness1469
Originally posted by: SunnyD
Originally posted by: bunker
Am I reading that diagram correctly? Three 3.5+ Ghz processors????

Not just 3 3.5ghz cpus, 3 POWER 976 3.5ghz cpus! I believe these are essentially the equivalent of dual core hyperthreaded cpus. That means 6 physical CPU's, + hyperthreading. So essentially 12 cpus if I read correctly. :D

I guess I'm not the only one who was floored by that.

The funny part is that, if I'm reading it correctly, it blows away any PC that is on the market or could be built on the standard budget... the problem with that is even in three years I don't think any game makers will use even a third of this power, so why waste money and jack up costs on the thing? (Unless they have some SERIOUSLY groundbreaking and monumental plans for it.

Actually theywill make use of it. Game makers are only holding back now because they have to please the lowest system. They want sales, so they make their games work with crappy old systems. With consoles, EVERY bit of power is eventually used. Trust me.
 

Homerboy

Lifer
Mar 1, 2000
30,890
5,001
126
i would be VERY surprised if that's accurate. current POWER4's highest clock speed is 1.6ghz, and this is from and architecture that hit 1ghz over a year ago. plus.. it's not really clear, but it looks like three cores on one chip.. currenlty they make them with 2 cores, and I would assume it would be cheaper to put in 2 of those rather than a new 3-core variation. just speculations on my part though.
 

UNCjigga

Lifer
Dec 12, 2000
25,586
10,284
136
Jeebus, how much will three of these custom POWER 976 chips cost ALONE!!?? I'd imagine that's $300 AT LEAST (assuming chips are priced $100 each in quantities of 1000 on the spot market.)
 

Mani

Diamond Member
Aug 9, 2001
4,808
1
0
Originally posted by: BullsOnParade
I'm going to cry if they dont put a hdd in this one, however if they use a usb2 interface
we might yet be able to attatch a hdd to it. I hope this next gen will be as mod friendly
as the original. That ability alone has won me over.

Plus i'd guess that vpu - video processing unit not virtual processing unit.

It may or may not be virtual processing unit but I would bet money that it's not video processing unit.
 

TuxDave

Lifer
Oct 8, 2002
10,571
3
71
Originally posted by: tec699
Originally posted by: TuxDave
Originally posted by: Howard
Who's Passions? He's been around for 4 years, and yet I don't recall seeing him...

Beats me, but he gets a 1 on his rating from me. :-D

Oh I bet he's trembling! :shocked:

And I'm assuming your e-thug powers can do much better? :p
 

kmac1914

Golden Member
Apr 2, 2002
1,030
0
76
Originally posted by: XZeroII
Originally posted by: ness1469
Originally posted by: SunnyD
Originally posted by: bunker
Am I reading that diagram correctly? Three 3.5+ Ghz processors????

Not just 3 3.5ghz cpus, 3 POWER 976 3.5ghz cpus! I believe these are essentially the equivalent of dual core hyperthreaded cpus. That means 6 physical CPU's, + hyperthreading. So essentially 12 cpus if I read correctly. :D

I guess I'm not the only one who was floored by that.

The funny part is that, if I'm reading it correctly, it blows away any PC that is on the market or could be built on the standard budget... the problem with that is even in three years I don't think any game makers will use even a third of this power, so why waste money and jack up costs on the thing? (Unless they have some SERIOUSLY groundbreaking and monumental plans for it.

Actually theywill make use of it. Game makers are only holding back now because they have to please the lowest system. They want sales, so they make their games work with crappy old systems. With consoles, EVERY bit of power is eventually used. Trust me.

He's very much right. Console game development != PC game development. Also, is it just me, or does the multi-processor setup remind anyone else of the Sega Saturn? That had two processors in it too, but developers were too lazy to take the time to make it work to its full potential.
 

Koing

Elite Member <br> Super Moderator<br> Health and F
Oct 11, 2000
16,843
2
0
I'll go with PS3 when that comes out probably. I'd like my PS2 games to work on it and whatever Sony has to offer with game wise. If they jump to Xbox2 and they don't have that crappy ass controller (personal opinion but some of my friends love it) I may get it. But I'm not much of a gamer anymore.

Koing
 

SunnyD

Belgian Waffler
Jan 2, 2001
32,675
146
106
www.neftastic.com
Originally posted by: Homerboy
i would be VERY surprised if that's accurate. current POWER4's highest clock speed is 1.6ghz, and this is from and architecture that hit 1ghz over a year ago. plus.. it's not really clear, but it looks like three cores on one chip.. currenlty they make them with 2 cores, and I would assume it would be cheaper to put in 2 of those rather than a new 3-core variation. just speculations on my part though.

Again, it's not a 3-core processor... it's 3 dual core individual processors. Read the article.