Core Duo vs Core 2 Duo

[vtohthree]

What exactly is all the hype about? What's so improved over the dual core Yonah vs. the Merom? More cache(I would assume)?


I've been hearing all this cream talk about Merom, but I never got an explanation as to why it's so anticipated, both are pressed on 65nm too right?

Oh yes, and of course, I am in fact talking about the mobile series, no mistakes with Conroe...

 

[stevty2889]

A lot more, it's a differant architecture. 4 IPC instead of 3 IPC, Macrofusion, full 128bit SSE etc. etc. there are plenty of conroe threads here already, just do a search.

 

[Brunnis]

Originally posted by: vtohthree
Oh yes, and of course, I am in fact talking about the mobile series, no mistakes with Conroe...

Well, since Merom, Conroe and Woodcrest are basically identical, you may look for architectural information on any of those. I'm not going to assemble the data for you in this post, since it's easy to find on the net. There's a recent comparison between the Core arch and AMD's K8 on this very site.

 

[vtohthree]

Yes, I've seen it, I've also read a post on the inquirer which had a handful of info, but stevty seemed to over the highlights, macrofusion, 4ipc rather than 3ipc, 128bit sse, etc.

I also read the core and amd k8 comparison when it was released, it was just wasn't too apparent what was different from the Yonah vs. Merom.

 

[Goi]

You need to read more then. They are 2 different architectures. Merom is based on the Core architecture. Yonah, despite being "core duo", isn't part of the Core architecture, but rather the Pentium-M architecture.

 

[pcoffman]

Originally posted by: vtohthree
What's so improved over the dual core Yonah vs. the Merom?

One thing that hasn't been mentioned yet is that the mobile Core 2 Duo / Merom is a 64-bit chip, whereas Core Duo / Yonah is 32-bit. If 64-bit computing takes off with Windows Vista, mobile Core 2 Duo will be the chip to use, on the Intel platform.

 

[imported_wyrmrider]

Oh happy days
the Incrediably gay duo
saved by superheros
Pentium -M- and Core all descendents of Pentium and especially Pentium Pro > PIII
all P4 did was waste a lot of resources, time and contribute to global warming
good idea- too bad we could not pull it off
who'd a thunk about all of the drain at smaller design rules and faster speeds?
perhaps 64 bit core will get Intel back on track. AMD needs the competition

 

[pcoffman]

Originally posted by: Goi
They are 2 different architectures. Merom is based on the Core architecture. Yonah, despite being "core duo", isn't part of the Core architecture, but rather the Pentium-M architecture.

Everything you say is true. However, given the announcement today, it is also important to not overstate the difference between the Core 2 Duo and its predecessor. Core 2 Duo is based on a new microarchitecture, but it is also 2nd and next generation to the original Core Duo. The '?2? will signal the arrival of a new generation of technology to the Intel® Core? processor line'.

Analysts have been saying all along that the new microarchitecture has alot more to do with the Pentium-M & Yonah than anything else. Intel has been reluctant to admit this, steadfastly maintaining that it has roots in NetBurst as well. But by choosing this new name, they seem to be acknowledging the principle roots of the technology.

 

[Goi]

Yes, it's based on the Pentium-M microarchitecture, which is based on the P6 architecture. However, IMHO they are sufficiently different to classify it as a separate and new microarchitecture. Perhaps not as different as the P6 is from the P5, but definitely more so than say the P3 is from the P-Pro.

 

[pcoffman]

Originally posted by: Goi
IMHO they are sufficiently different to classify it as a separate and new microarchitecture

Make no mistake, it is a new microarchitecture.

 

[aigomorla]

Originally posted by: wyrmrider
Oh happy days
the Incrediably gay duo
saved by superheros
Pentium -M- and Core all descendents of Pentium and especially Pentium Pro > PIII
all P4 did was waste a lot of resources, time and contribute to global warming
good idea- too bad we could not pull it off
who'd a thunk about all of the drain at smaller design rules and faster speeds?
perhaps 64 bit core will get Intel back on track. AMD needs the competition

uhh, the yonah isnt something to be taken lightly. Over at xtremesystems.com, a 3.8ghz yonah spanked superpi at 15sec. AND NOT IM NOT KIDDING it was 15s. I dont think my AMD could ever dream of getting a superpi time that low

Text

So i wouldnt bash intel just yet, and merom might end up becoming even more scarier along with conroe.

 

[Marmion]

If you forget about the name, Merom is around 20% faster than Yonah as a claim by Intel. guess2098 over at xtremesystems.org has done a pretty comprehensive analysis of Yonah vs Merom at various clocks. Link
Also Coolaler has posted results of both Merom and Conroe on the Intel forums of xtremesystems.org/forums