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Merom vs. Yonah

bigredshark

bigredshark

bigredshark

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Hey guys,

does anybody have a comparison between these two? I'm considering buying a Macbook Pro but I'm thinking about waiting for a Merom based one if it'll offer a substancial performance advantage (it'll be running aperture so it'll need all it can get)
 
I wouldn't buy the current one based on experience. I had one for 8 weeks and for 5 of them it was in AppleCare! Got my money back and got a PowerBook :p The merom revision probably coming out at the developers conference on 7th August :D
 
Or you could put it this way...

Yonah is almost exactly clock-for-clock identical to a A64 X2.

Conroe/Merom are about 20-40% faster per clock than a A64 X2.
 
Yonah is 32 bit all the way. I've never heard anything about it having the hardware for it so I dispute that, Mr. Intime. ;)

Conroe is 64 bit using essentially the same instruction set as AMD uses.
 
BillytheImpaler said:
Merom and Yonah fit in the same socket. Merom is 20-40 per cent faster whilse radiating less heat. :)
Click to expand...

No, at the same clockspeed Merom is hotter.
Yonah is quicker than X2 at the same clockspeed by a fair margin
 
Yohan is a 3 IPC 32bit design, hardly more than a 65nm refresh of the previous Pentium-M (pentium 3 based), and splits 128bit SSE instructions into two 64bit chunks for processing.

Merom on the other hand is 4IPC, is native 64bit, has prefetchers and OOE systems inspired by P4, while the short pipeline and execution units are inspired by the more efficient P3 design. Its internal data and instruction busses are extended from 64bit, to 128bit, so its able to processes 128bit SSE/2/3/4 instructions in a single clock cycle.

Basically Core 2 processors (Merom, Conroe etc) are improved in almost every respect.
 
OC_A64 said:
No, at the same clockspeed Merom is hotter.
Yonah is quicker than X2 at the same clockspeed by a fair margin
Click to expand...

Erm, no

Merom is quicker, uses less power and gives off less heat than Yonah. Yonah is only a few % quicker than a equiv X2 and Merom is much much much quicker 20-60%.
 
Having looked, merom has a higher TDP than yonah for an equivilent speed

either way, I'm waiting till august 7th (WWDC keynote), then either way I'm buying a 17" macbook
 
It has a higher TDP but it also has much lower power consumption at idle and small work loads. Believe it or not, Merom can actually power down some of its execution units to save power. Intel claims that a Merom laptop will be able to do 5 hours runtime.
 
NathanE said:
It has a higher TDP but it also has much lower power consumption at idle and small work loads. Believe it or not, Merom can actually power down some of its execution units to save power. Intel claims that a Merom laptop will be able to do 5 hours runtime.
Click to expand...

my sony core duo does 5 hours run time...but i suppose it'd be nice on the macbook too
 
So what is the probability that I'll be able to pick up a Merom chip and swap it with the Yonah in my Sony laptop? I've heard that the support is just a matter of a BIOS update. If Sony provide the update, will it just be a matter of taking the back off the lappy, unclipping the cooler and swapping the chips?
 
Mattus said:
So what is the probability that I'll be able to pick up a Merom chip and swap it with the Yonah in my Sony laptop? I've heard that the support is just a matter of a BIOS update. If Sony provide the update, will it just be a matter of taking the back off the lappy, unclipping the cooler and swapping the chips?
Click to expand...
If Sony does their part I don't see any problems. :)

It should run both cooler and faster when crunching meaty 364 pointers... ;)
 
BillytheImpaler said:
It should run both cooler and faster when crunching meaty 364 pointers... ;)
Click to expand...

You got me... that was one of my main aims :p

Awesome! Maybe I'll go for the 2.16Ghz model if I find myself rich enough.
 
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