Amazing new Intel e8400 cpu results

[mitchellds]

ok, this is hands down the most over-clockable cpu I've EVER seen at first glance. Here are my initial air cooled results on a asus p5k mb. This is on my second boot into windows. All I did was increase the cpu voltage slightly and increase the fsb to 475. There is plenty more mhz to be had beyond this range as well.

4275 mhz (475x9)
58C temps
cpu core voltage raised to 1.42
2gb of dd2 crucial memory running at 475mhz at 5-5-5-18

That my friends is a 1275 mhz overclock from the stock 3ghz without using any fancy cooling solution on only a Zalman air cooler. If this is a sign of what the new 45nm Intel quads will do, then as soon as they drop in price to something reason able like the q6600's did, then I'll be buying them in mass.

[Nflight]

There has been some miss-speculation in this equation. I would like to know if you could further enlighten us to the real situation. Is this a Dual core, (two cores on this chip) or is this a core 2 Duo where there are two sets of dual cores on this one chip? Making this virtually a quad core cpu configuration.

If this is the case and with some more information is this the E8400 on the 45nm configuration compared to the Q6600 running on a 65nm configuration? Or are they both on the same platform of nm precision? More energy usage is what I am after in knowledge, will the little E8400 chew up more energy running at the higher speeds then the Q6600 running at high speeds on the 65nm chip base? So far the results are impressive, I am excited!

[mitchellds]

Nflight,

This cpu is a dual core chip, not a quad core. It is much like a conroe dual core chip, only next generation fabricated with a 45nm production process called wolfdale. This cpu runs alot cooler than the conroe and generates alot less heat, and can be overclocked to a much higher FSB that the conroe because of that. I believe they are both rated at 65watts for heat dissipation. I wasn't comparing the cpu to a q6600 quad core. It still doesn't compare in total power to a q6600. It still only has half of the cores of a q6600. I can over clock a q6600 to 3.6 qhz x 4 cores which = 14.4 ghz of raw crunching power. I can overclock this new cpu right now to 4.2 x 2 ghz = 8.4 of raw crunching power. What I'm saying is this, if we had this in the new equivalent quad core 45nm cpu, we would be screaming. I wasn't comparing power used, or trying to make this a green discussion when I opened this thread. I saw your other thread, but didn't reply to that with this topic.

There is a equivalent quad core 45nm product line that runs on both a socket 771 and socket 775 mb, that appears to be massively Oc-able and much line the dual core line of the 45nm wolfdale series like I bought (e8400), but they are still very expensive (2 me anyhow), and I'm awaiting the price drop so I can quad core with these new animals.

At far as power savings go Wolfdale to Conrole dual core, they advertise that since they use the smaller die size, that they waste less power than the larger die size conroe due to lack of current leakage.

Here is a real good article to read.

http://www.xbitlabs.com/articles/cpu...-wolfdale.html

[Nflight]

mitchellds
Thanks for the clarification. Your description was by far the most enlightening I have received even through searching for on the internet.

Tell us how far you push it this weekend.

[Nflight]

So how far have you pushed this E8400 machine since our last discussion in January?

[mitchellds]

not to much since then, still running at around 4.3 ghz 24x7, but I converted it to Ubuntu 64 Linux. It just keeps running with no problems at all. Nice.

[gamer007]

4.3GHz! (OK, bit of an exgerration in the emote there.) But impressive.
Is this on stock cooling?

My original plan was going for going with cheap dual core until the 45nm quads came out. But my dad surprised me by buying a Q6600 for me.

The furthest I've gone on it is 3.0GHz on stock cooling. It runs at 70 degrees C with a full 4 core load which kind off worries me with stock cooling. Right now I'm back at stock 2.4GHz.

[drezha]

gamer, my quad is at 2.4Ghz. it still kicks out a lot of points so don't worry about it ;)

[PoorBoy]

gamer, my quad is at 2.4Ghz. it still kicks out a lot of points so don't worry about it ;)

I had to back down a lot of my Quads yesterday, it got to hot outside and in the Computer room and they where rebooting themselves all day long so in the afternoon I started to Un-Clock them to lower CPU speeds.

I knew I would have to sooner or later as the Temps rose outside so I was prepared for it, 1 Quad went down early in the morning yesterday and is still down, I haven't figured out whats wrong with it so far ...

[mitchellds]

That no exaggeration gamer. 4.275 ghz, 24x7 to be exact since Feb. using a Zalman cooler. Still running about 58c, and it is a 45nm dual core.

Yup, I run all of my quads starting about 3.2 ghz to 3.6 ghz at the top end, using zalmans or water cooling, and none of them run that hot. You should invest in some better cooling asap before you fry your cores.