Q6600 B3 vs G0

[twistedheat]

For those that have owned both a B3 and G0, this question goes out to you. How much of a temperature drop did you see when changing from one to the other? This is based on same cooling and same clock speeds between the B3/G0 comparison (if you can remember).

I am looking to purchase a G0 but already have a B3. Main reason is that even at stock speeds (2.4ghz), using Arctic Freezer Pro 7 and Arctic Silver 5 (applied using the method on the website) and after several reseats, I'm still hitting 72ºC under prime 95 load. My case is an Antec P180B with all three fans installed so I'm pretty sure it is the CPU that is a wrong'un. It is leaving no headroom for overclocking.

 

[twistedheat]

I don't remember my exact drop but it was somewhere between 10 and 15c.

What I can tell you is that at 3ghz my system hits high 60's when Priming with the G0, whereas with the B3 it was high 70's.

Also, I have been able to limit the speed of the fan on the Arctic Cooler now. It never goes over 2100 RPM. With the B3 it very quickly (and loudly) hit 2500RPM.

Exactly what I wanted to hear!

OCuK, sign me up for a G0. Haha. Placing my order now.

 

[twistedheat]

It's well worth it IMHO unless you intend using custom water to cool the B3. Also, I managed to sell my B3 on the 'bay for the same amount I bought the G0 - Result!!

I've seen a lot of quads recently go for £130ish + p&p on the bay, so for a ~ £30 outlay I don't mind having the better quad. With the B3 I would have had to leave it at stock. With the G0 I'm certain I will be able to hit 3.1ghz easy given the lower temps and higher temperature threshold.

 

[twistedheat]

Doesn't it depends on when you got your B3?

Newer B3's are likely to be closer to G0 anyway, so unless you have an older B3 it might not be worth the upgrade. Although from having seen your temps, it sounds like you must have an earlier version

Haha, yep. Pack date on the box says 02/01/2007.

 

[twistedheat]

i personally have great respect for freezer 7 pros, but id use something more for cooling a quad core
preferably a cooler that you can pick your own 120mm fan

Agreed that whilst the Arctic Freezer Pro 7 isn't the best of coolers, it should easily keep a stock B3 quad down in temps. Therefore, my only conclusion is that the B3 is a wrong'un. No big deal though, sold it on the bay for £142 and I am paying £160 for the G0 so £18 is not a big outlay. The equivalent of 5 pints at a bar.

 

[twistedheat]

So my G0 arrived and I fitted it in. Mind blowing.

Comparing both B3 and G0 at stock speeds, same application of Arctic Silver 5, same Arctic Freezer 7 Pro, same case, same OS, same Prime 95 test, the results are:-

- B3: 72 degrees for the highest core after 15 mins of prime
- G0: 51 degrees for the highest core after 15 mins of prime

That is an astonishing 21 degrees. Couple this with the G0's higher 'safe' temperature range, for a total outlay of £18 buying the G0 was a bargain!

 

[twistedheat]

Are you using the latest versions of your temperature monitoring software? Older versions reported about 15C less due to the misread Tjunction.

Core Temp 0.95.4 - showing correct
Intel TAT 2.0.5 - showing correct +1 degrees
Speedfan - showing less than correct by an average of 15.75 degrees

 

[twistedheat]

Excellent news! Glad to hear it worked out so well. Now get that thing clocked up!

EDIT: Out of interest, which version of Prime are you using and what test? They are nice temps, mine hits mid 50's at stock within a few mins (version 25.4 small FFT's). Although I did change to Ceramique. May go back to AS5 now that I see your results.

Prime Version 25.5. Using the large FFT length (not sure on this as I am currently running prime as I type, but basically the one that says it will produce the highest heat). Currently stability testing 3.1ghz, been priming for 45 mins and highest core is at 62 degrees, lowest at 55.

 

[twistedheat]

Sounds like it's going really, really well. But for a proper torture test, change to small FFT's, it REALLY heats things up.

Prime failed on one core, so upped vcore and have been Small FFT'ing for the last hour. 65-65-57-58 across the cores. If I can get stability at this clock and temp I'll be a happy guy.

EDIT: Forgot to mention, this is with Arctic Freezer 7 Pro at 100% RPM, but my Antec P180B's 3 case fans are on their 'low' settings. Increasing them all to high drops the temps by about 3-4 degrees I think.