New MBA frontside bus

Sup guys,
I have noticed that the new 11.6" MacBook Air only has a 800 MHz frontside bus!!! However it used 1066 MHz RAM. just wondering if apple screwed up on this one!! As as far as I know if you install 1333 MHz RAM in MacBook Pros which have a 1066 MHz frontside Bus then the RAM wont be able to run at 1333 but be used at 1066 MHz. This isnt something which is stated in system profiler or smthin so dont bother answering, but is says its 1333!! it can only run it at the speed of the frontside bus. Well okay wait, 1333 MHz RAM does improve performance over 1066 in MBP's but not to the extent they would if the frontside bus were 1333 aswell.

So you see, if apple has a C2D chip with 800 MHz frontside bus in the 11.6" model, the RAM wouldn't perform the same way it does in the 13.3" with 1066 MHz frontside bus.

Im not exactly sure but as far as i know that would be the case.

Glad if you techies could gimme some knowledge on this

cheers

Moved to correct forum.

Sup guys,
I have noticed that the new 11.6" MacBook Air only has a 800 MHz frontside bus!!! However it used 1066 MHz RAM. just wondering if apple screwed up on this one!! As as far as I know if you install 1333 MHz RAM in MacBook Pros which have a 1066 MHz frontside Bus then the RAM wont be able to run at 1333 but be used at 1066 MHz. This isnt something which is stated in system profiler or smthin so dont bother answering, but is says its 1333!! it can only run it at the speed of the frontside bus. Well okay wait, 1333 MHz RAM does improve performance over 1066 in MBP's but not to the extent they would if the frontside bus were 1333 aswell.

So you see, if apple has a C2D chip with 800 MHz frontside bus in the 11.6" model, the RAM wouldn't perform the same way it does in the 13.3" with 1066 MHz frontside bus.

Im not exactly sure but as far as i know that would be the case.

Glad if you techies could gimme some knowledge on this

Cheers

It's done all the time by computer manufacturers. Easier to tool for one speed than several I'd imagine. The old Core Solo chips were actually Core Duo chips with the bridge disabled. I'd imagine the new MBA 11" will run just fine at 800Mhz.

Note: Merged duplicate threads.

XJ-linux said:

It's done all the time by computer manufacturers. Easier to tool for one speed than several I'd imagine. The old Core Solo chips were actually Core Duo chips with the bridge disabled. I'd imagine the new MBA 11" will run just fine at 800Mhz.

Click to expand...

Agreed, the 11" MBA with a FSB of 800Mhz will downclock the ram to match the speed. Regardless of the ram in it being 1066Mhz. Only problem is you will not be able to use the ram to it's full potential.

EggrollShop said:

Agreed, the 11" MBA with a FSB of 800Mhz will downclock the ram to match the speed. Regardless of the ram in it being 1066Mhz. Only problem is you will not be able to use the ram to it's full potential.

Click to expand...

Yeh exactly thats what i thought, kinda weird. Intel's ultra low voltage processors seem to all have a FSB of 800 MHz, guess apple couldn't have done anything here.

----> Off Topic, but is it possible to overclock the FSB?? in any Apple Notebooks?? <---

Cheers