Low-end 13" MBP CPU7550 Specs?

[rockonchen]

Could find this CPU in Intel's CPU list.
It is same as P8400 with 2.26GHz.
Is there anyone knows the architecture difference
between P8400 and P7550?
Thanks in advance.













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[w00t951]

Most likely, there is a small change in the FSB or the cache or some other thing. The CPU with the higher number is generally better.

 

[rockonchen]

Thanks for your input!

 

[Ryken]

they have the same clock speed, FSB, and L2 cache. My guess is they run at different wattage, but there is a big lack of info on the T7550. The P8400 runs at 25w, while the T7500 runs at 34w. I would assume the T7550 runs at the same wattage as the T7500, but I can't verify for sure. The difference mostly comes from the P8400 being a 45nm chip, and the T7500 is a 65nm chip.

Can anyone verify that the T7550 is 45nm or 65nm?

 

[Dwalls90]

http://processorfinder.intel.com/List.aspx?ParentRadio=All&ProcFam=2643&SearchKey=

I've never heard of the P7550.

 

[glavoie84]

http://processorfinder.intel.com/List.aspx?ParentRadio=All&ProcFam=2643&SearchKey=

I've never heard of the P7550.

clueless:~ wildchild$ sudo sysctl machdep.cpu.brand_string
machdep.cpu.brand_string: Intel(R) Core(TM)2 Duo CPU P7550 @ 2.26GHz

13" MacBook Pro, I think this processor was released at the same time as the new MBPs!

 

[Dwalls90]

13" MacBook Pro, I think this processor was released at the same time as the new MBPs!

Oh okay neat.

 

[crzdmniac]

From my understanding the P7550 is just the OEM version of the P8400. Someone, feel free to correct me if I'm wrong.

 

[maratus]

they have the same clock speed, FSB, and L2 cache. My guess is they run at different wattage, but there is a big lack of info on the T7550. The P8400 runs at 25w, while the T7500 runs at 34w. I would assume the T7550 runs at the same wattage as the T7500, but I can't verify for sure. The difference mostly comes from the P8400 being a 45nm chip, and the T7500 is a 65nm chip.

Can anyone verify that the T7550 is 45nm or 65nm?

T7550 != P7550

 

[rockonchen]

From my understanding the P7550 is just the OEM version of the P8400. Someone, feel free to correct me if I'm wrong.

Probably true.
I find Apple is not the only company using this chip.
one or two HP and Acer Aspire 3935 also use the chip.
Since it is a "P" chip, I would assume it runs at 25 watt.

 

[poematik14]

6mb of L2 versus 3 i beleve in the 7 series. Also, the FSB is higher (1066 versus 800)

Double check me as I may be wrong- this is off the top of my head

 

[airplaneman]

they have the same clock speed, FSB, and L2 cache. My guess is they run at different wattage, but there is a big lack of info on the T7550. The P8400 runs at 25w, while the T7500 runs at 34w. I would assume the T7550 runs at the same wattage as the T7500, but I can't verify for sure. The difference mostly comes from the P8400 being a 45nm chip, and the T7500 is a 65nm chip.

Can anyone verify that the T7550 is 45nm or 65nm?

I'm pretty sure that all CPUs used in the current MBPs are 45 nm.

 

[rockonchen]

I agree with you that it is 45nm.
But L2 Cache is still 3MB only.

 

[praetorian909]

I'm also trying to find out the difference too, in Wiki they have identical specs--same clock speed, L2 cache, socket, TDP.

http://en.wikipedia.org/wiki/List_o....22Penryn-3M.22_.28medium-voltage.2C_45_nm.29

So far, I did find a benchmark. The P7550 (newer of the two) was a good deal faster than the P8400. I'm not sure why...

P7550 = 1827
P8400 = 1535

http://www.cpubenchmark.net/cpu_list.php

 

[guill019]

From my understanding the P7550 is just the OEM version of the P8400. Someone, feel free to correct me if I'm wrong.

I'm also agree