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E7400 @ 1066mhz vs E6550 @ 1333mhz

3335 Views 11 Replies 6 Participants Last post by  EviloneX, 
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When I built my computer ~2 years ago I made a mistake when buying a CPU compatible with my motherboard. My motherboard only has a Front side bus speed of 1066mhz, and my CPU has a front side bus speed of 1333mhz. Basically this means my CPU cannot run at full speed because my motherboard wont allow it to.

I found this CPU on newegg that has a FSB of 1066mhz, which matches my motherboard. It is an Intel Core 2 Duo E7400 2.8ghz. The CPU I have now is an Intel Core 2 Duo E6550 2.33ghz, but it only runs at 1.87ghz because of my motherboard.

My question is, is the E7400 better? Its only $119 and matches the FSB of my motherboard, so it will run at 2.8ghz. This way I wont have to buy a new motherboard and basically rebuild my computer. Will the E7400 running at 2.8ghz with a FSB of 1066mhz be faster than my E6550 @ 2.33ghz with a fsb of 1333mhz?
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Modki
I'm loving my E7400 currently, just bought it also. I'm leaving it at 3.5Ghz for now but I had it stable at 4Ghz for a couple of hours. Just got worried about it being set that high and I didn't really notice a difference going from 3500 to 4000Mhz

Also, have you tried going into your CMOS Setup and changing the FSB to 1333?
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D
I think you should get a better board. That way you won't have to worry about it. Then if you want to after, get a better CPU.
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F
so basically to make a long story short

MY MOTHERBOARD NOW = FSB of 1066mhz
MY CPU NOW = 1.87 w/ FSB of 1333mhz

the E7400 = 2.8ghz FSB of 1066mhz

Will it be better to upgrade my CPU to the E7400 and match the FSB speeds of 1066? or upgrade my mobo and run the E6550 at full speed wich is 2.33ghz
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Quote:


Originally Posted by Dobbie
View Post

I think you should get a better board. That way you won't have to worry about it. Then if you want to after, get a better CPU.

true
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Modki
Does that ASUS board support overclocking?

If it does then change the FSB from 266 (1066) to 333(1333) it's just that simple. If not then... well get a better board! I see a ton of them for $40 to $50 on newegg. Would be better than replacing the CPU imho.
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chevymeister
Get the new mobo and overclock that chip. I have one of those at 3.8 stable at only 1.3 volts.

EDIT: Wait, nope, wrong chip. Sorry lol. It's the e6300 I have.

Still, I would get a better motherboard, better investment and it will be fun to oc your chip.
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Quote:

Originally Posted by Modki View Post
Does that ASUS board support overclocking?

If it does then change the FSB from 266 (1066) to 333(1333) it's just that simple. If not then... well get a better board! I see a ton of them for $40 to $50 on newegg. Would be better than replacing the CPU imho.
nah I cant OC the FSB at all. Its competely blanked out in bios
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so you guys think it would be better to get a mobo with a faster fsb and keep the cpu I have now? vs keeping my mobo and upgrading the CPU to one that also has a fsb of 1066

I just upgraded my video card from an evga 7600GT to an evga 9800GTX+ so my CPU is bottlenecking right now
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D
The board will keep holding you back. If you get a better board you can run your chip at stock or OC a little or a lot. But if you get a new chip, you might not be able to run it at it's full speed because of the board.

In short, get a new board
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flyin15sec
There's a good chance that your motherboard may not even support the E7400, even though it uses 1066mhz FSB. The last BIOS update is dated 2/28/08. The E7x00 was not released yet.
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E
Get an GA-EP35-DS3L its cheap and usually they can do FSB speeds 500+ that will allow you to get your E6550 up to 3.5GHz.
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