intel core quad q6600 heat vs q9650

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valhallarising

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Hi, im upgrading a computer for somebody and they want to change the q6600 to a intel core quad q9650 but im not sure this case can handle the heat.

right now the cpu is about 65-70 c under load with the q6600, would it be possible to get about same temps with a q9650 since it got lower tdp ?
I cant change the cooler in this case since it Fujitsu oem style heatsink
the q6600 is 2.4 GHz 105 w tdp and the q9650 is 3.0 GHz with 95 w tdp does that make a difference or will it still run to hot?
 
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RaDiKaL_

RaDiKaL_

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Yes it will help by a couple degrees lower, given that it's an old system maybe he hasn't renewed the thermal paste on his current Q6600 and that's why he's reaching 70ºC, I remember having my Q6600 oced at 3.4Ghz with its stock cooler and it reached at most 66ºC during Prime95.

Anyways, while changing the CPU you're obviously going to apply new thermal paste which should ensure lower temps.
 
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valhallarising

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i acutally changed the paste today and got a few degrees lower, this is a btx Fujitsu computer with the cpu socket in front with a big heatsink with no fan on it but a 120 mm fan right in front of it blowing air onto it. the airflow in the case isnt the best its got the front fan but no side or top fans. maybe the lower tpd q9650 will run with similar temps like this though
 
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Dugimodo

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It should run slightly cooler, both because of the lower tdp but also because it'll not be working as hard or as long to finish the same tasks. However unless you get the 9650 for free or close to it I don't think it's a worthwhile upgrade, it's unlikely to make a noticeable difference overall. The only real world difference will be if the PC is right on the margin for being able to do something like play a game smoothly.

Yes it's about 20% faster on average, but it's still old and slow overall. I upgraded and E6400 dual core to a Q8400S quad a little while ago for a machine that I use occasionally and even doubling the core count really hasn't made all that much difference.

Price a new pentium G4650, motherboard, and RAM. Then if your upgrades get even remotely close to that price consider buying them instead, not forgetting to add in the price of a OS if it's not transferable. You can always sell the old hardware for whatever you can get for it as well. A C2Q is still a capable machine for a lot of tasks, but if it's too slow as is it's not worth spending much money on.
 
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Dugimodo

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Speaking of the 8400S... if the goal is just to lower temperatures consider it. It's a 65W tdp quad core you can often find quite cheap, I got one purely because the motherboard I have only supports 65W CPUs. It will not be faster than a Q6600 though, only a bit cooler.
 
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valhallarising

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for gaming it makes a big difference. i got a xeon x5450 in one system that is similar to the q9650 and it can do full hd in some new games but i got your Point of course its not a good upgrade but they want a cheap and fast solution so i guess they be satisfied.
the q8400 would be a good chocie when it comes to heat but i guess its not much faster than the q6600?
thanks
 
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valhallarising

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ok thanks. right now my temps are on load average 65 running it for halfhour and max 70 c according to hw monitor. do you Think it would handle q9650 or would it produce more heat since its clocked higher even though the tdp is lower?
 
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Ecky

Ecky

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Although CPUs don't necessarily produce exactly their TDP in heat, lower TDP generally means less heat. The Q6600 was built using Intel's 65nm process, whereas the Q9650 was built using the smaller, more efficient 45nm process, so at the same voltage and clocks it should draw a lot less power.
 
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valhallarising

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looks like i might not need to upgrade the cpu after all the guy im building it for got a good deal on a geforce gtx 1050 and dropped it off , just tried it with battlefield 1 and its very smooth in full hd about 50 fps. so core quad is still good for gaming no doubt
 
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