Q9450 is less OC'able than Q6600

[xxceler8]

I've heard this mentioned a few times here and there. That due to the lower multipliers of the new penryn 45nm chips, and higher bus speeds, they will not OC as well as the Q6600.

The lower power consumption and cooler running seems to make them a good candidate for overclocking

Can anyone shed some light on this?

 

[JAG87]

dont expect to go higher than 3.6 with the new quads, because it will require 450 FSB with a Q9450 to get there, and quads are just not very stable with FSB above 450. with a Q9550 though, 3.8 ghz should be easy, and there is a good chance to hit 4 ghz if you can find a board that is stable around 460-470 mhz. A good P35/X38 board should get the job done. But many will be disappointed if they think 45nm will bring them higher clocks. This time around there is a good reason to buy unlocked chips.

 

[Tempered81]

if your 45nm quad is at 4 ghz, why should others expect to stay below 3.6?

 

[JAG87]

because my quad has 6-60x multiplier choice and there is no need to run 450+ fsb to get to 4 ghz. good grief, you have an overclocked cpu, you should know these things.

 

[secretanchitman]

Originally posted by: JAG87
because my quad has 6-60x multiplier choice and there is no need to run 450+ fsb to get to 4 ghz. good grief, you have an overclocked cpu, you should know these things.

oh wow...didnt see you had the extreme edition! lucky you!

 

[Tempered81]

ohhh yeahhhhhhh heheh

what kind of fsb do you think the wolfdales will do. surely they have no probs with 450, possible probs with 550 though.

at that point, your mb will be having probs as well.

 

[JAG87]

the wolfdales should have no problem hitting 500 fsb with a capable motherboard of course, but the quads are known to have problems above 450, even if the motherboard is capable the chips dont like it. people with wolfdales will be very happy, they will hit north of 4 ghz for sure.

people need to realize that they wont be seeing 4 ghz quads unless they buy the qx chips. like I said before, this time the unlocked chips have some worth, unlike the 65nm quads where both the q6600 and the qx chips topped out at the same frequencies.

 

[Cheex]

The Q9450 has a multiplier of 8.

Are you saying that a good board with good RAM...can't hit 500FSB to take it to 4GHz....???

Sounds pretty doable to me and I'm gonna do it (providing I end up with some decent cash flow ).

 

[Tempered81]

jag, makes sense. I've also read that the unlocked multipliers were going to be worth it this time around. I understand why now. You just dont have the same odds making 4 cores goto 4ghz as you do trying to get two cores up there.

 

[JAG87]

Originally posted by: Cheex
The Q9450 has a multiplier of 8.

Are you saying that a good board with good RAM...can't hit 500FSB to take it to 4GHz....???

Sounds pretty doable to me and I'm gonna do it (providing I end up with some decent cash flow ).

no you wont do it. quads dont like 500 fsb. the two dies communicate through the fsb, and the fsb has to be VERY stable.

the chances of you running a quad at 4 ghz at 500 fsb are slim to none, even with a 300 dollar asus maximus extremus super dupus, or a gigabyte DQ6 version of the same junk. anything over 450 fsb will be very hard to achieve, I am telling you know so you can plan ahead.

 

[Cheex]

Interesting.

Do you think though, that a Q9450/12MB ($316) is still better than a Q6600/8MB ($266)...???

 

[JAG87]

yes because you will get it to 3.6 (450x8), which is where a q6600 usually tops out at, but it will get there on stock voltage (1.25v), and it will run way cooler. In fact you will get it to 3.6 on the stock intel cooler, with no need to spend extra money on a heatsink.

 

[Cheex]

I already have a Tuniq Tower 120....

All I'd need is a board that can make good above 450FSB.....

 

[TraumaRN]

Originally posted by: JAG87
yes because you will get it to 3.6 (450x8), which is where a q6600 usually tops out at, but it will get there on stock voltage (1.25v), and it will run way cooler. In fact you will get it to 3.6 on the stock intel cooler, with no need to spend extra money on a heatsink.

How much cooler would 'way' cool be tho. Have to remember 45nm means smaller but also smaller area of heat dissipation(as in more transistors in a smaller area producing a high thermal load). Considering my ambient temp is 20-22C and my Q6600 @3.55 with a Tuniq Tower idles the 4 cores at 28, 30, 32 32(Load is 50,50,52,52). I'm betting a Q9450 etc would idle around similar temps maybe 1-2C difference. Now on load it may see some definite drop in temps. I'd guess 3-5C

But hey prove me wrong since you've got one

 

[Tempered81]

Originally posted by: DeathBUA

Originally posted by: JAG87
yes because you will get it to 3.6 (450x8), which is where a q6600 usually tops out at, but it will get there on stock voltage (1.25v), and it will run way cooler. In fact you will get it to 3.6 on the stock intel cooler, with no need to spend extra money on a heatsink.

How much cooler would 'way' cool be tho. Have to remember 45nm means smaller but also smaller area of heat dissipation(as in more transistors in a smaller area producing a high thermal load). Considering my ambient temp is 20-22C and my Q6600 @3.55 with a Tuniq Tower idles the 4 cores at 28, 30, 32 32(Load is 50,50,52,52). I'm betting a Q9450 etc would idle around similar temps maybe 1-2C difference. Now on load it may see some definite drop in temps. I'd guess 3-5C

But hey prove me wrong since you've got one

what brand is that 8800gt in your system? Nice core clock at 750 - i have crashes at 750

 

[TraumaRN]

Originally posted by: jaredpace

Originally posted by: DeathBUA

Originally posted by: JAG87
yes because you will get it to 3.6 (450x8), which is where a q6600 usually tops out at, but it will get there on stock voltage (1.25v), and it will run way cooler. In fact you will get it to 3.6 on the stock intel cooler, with no need to spend extra money on a heatsink.

How much cooler would 'way' cool be tho. Have to remember 45nm means smaller but also smaller area of heat dissipation(as in more transistors in a smaller area producing a high thermal load). Considering my ambient temp is 20-22C and my Q6600 @3.55 with a Tuniq Tower idles the 4 cores at 28, 30, 32 32(Load is 50,50,52,52). I'm betting a Q9450 etc would idle around similar temps maybe 1-2C difference. Now on load it may see some definite drop in temps. I'd guess 3-5C

But hey prove me wrong since you've got one

what brand is that 8800gt in your system? Nice core clock at 750 - i have crashes at 750

EVGA.

 

[Amaroque]

Originally posted by: DeathBUA

How much cooler would 'way' cool be tho. Have to remember 45nm means smaller but also smaller area of heat dissipation(as in more transistors in a smaller area producing a high thermal load). Considering my ambient temp is 20-22C and my Q6600 @3.55 with a Tuniq Tower idles the 4 cores at 28, 30, 32 32(Load is 50,50,52,52). I'm betting a Q9450 etc would idle around similar temps maybe 1-2C difference. Now on load it may see some definite drop in temps. I'd guess 3-5C

But hey prove me wrong since you've got one

I belive what you are refering to is the CPU's thermal density. Heat produced for a given space...

This is a crude example: If you have a 200w incandescent bulb, and a tiny 200w halogen bulb, they are both 200w, but the tiny halogen will be MUCH hotter.

 

[aigomorla]

Originally posted by: Amaroque

Originally posted by: DeathBUA

How much cooler would 'way' cool be tho. Have to remember 45nm means smaller but also smaller area of heat dissipation(as in more transistors in a smaller area producing a high thermal load). Considering my ambient temp is 20-22C and my Q6600 @3.55 with a Tuniq Tower idles the 4 cores at 28, 30, 32 32(Load is 50,50,52,52). I'm betting a Q9450 etc would idle around similar temps maybe 1-2C difference. Now on load it may see some definite drop in temps. I'd guess 3-5C

But hey prove me wrong since you've got one

I belive what you are refering to is the CPU's thermal density. Heat produced for a given space...

This is a crude example: If you have a 200w incandescent bulb, and a tiny 200w halogen bulb, they are both 200w, but the tiny halogen will be MUCH hotter.

<3 waterblocks because of this. Expecially ones with nozzles concentrated at the center