The 660/670 are Prescott-2M models. 661 is the Cedar Mill (top) model which remained the fastest of its kind because, I guess, Netburst architecture was no longer a priority for Intel. They were already preparing the launch of Core 2 CPUs that could reach much higher performance at lower clock speeds and power consumption so why would they chase the limits of the P4?

But if you ask if you should get the 65nm Cedar Mill instead of a 90nm Prescott(-2M) I'd say yes. It puts much less stress on the motherboard's power circuitry than Prescott.

alvaro84 wrote:

The 660/670 are Prescott-2M models. 661 is the Cedar Mill (top) model which remained the fastest of its kind because, I guess, Netburst architecture was no longer a priority for Intel. They were already preparing the launch of Core 2 CPUs that could reach much higher performance at lower clock speeds and power consumption so why would they chase the limits of the P4?

But if you ask if you should get the 65nm Cedar Mill instead of a 90nm Prescott(-2M) I'd say yes. It puts much less stress on the motherboard's power circuitry than Prescott.

Thank. I read wrong somwhere about the 660 I thought it was already the 65nm version when I bought it. 🙁

Which is the "fastest" chipset/mobo still time correct, I could try the 661 on? The P5GDC is based on the 915p chipset.

386SX wrote:

... Which is the "fastest" chipset/mobo still time correct, I could try the 661 on? The P5GDC is based on the 915p chipset.

Probably something with 945P chipset, like the Asus P5LD2. Enthusiast-targeted boards with 955X or 975X chipset, like the P5W DH Deluxe, were around during about the same period as the P5LD2 (mid- to late-2006; Cedar Mill came out early in 2006), but I imagine they won't be as easy to find and/or will be more expensive.

Btw, I don't think your P5GDC will work with Cedar Mill chips... or at least I don't see any of them in the CPU Support List.

SW-SSG wrote:

386SX wrote:

... Which is the "fastest" chipset/mobo still time correct, I could try the 661 on? The P5GDC is based on the 915p chipset.

Probably something with 945P chipset, like the Asus P5LD2. Enthusiast-targeted boards with 955X or 975X chipset, like the P5W DH Deluxe, were around during about the same period as the P5LD2 (mid- to late-2006; Cedar Mill came out early in 2006), but I imagine they won't be as easy to find and/or will be more expensive.

Btw, I don't think your P5GDC will work with Cedar Mill chips... or at least I don't see any of them in the CPU Support List.

Oh no, I just got to change the 660 for the 661 that will arrive in the next days and I only see now that the cpu support list jump from the 660 to the 662.... 😵 😒 😢

Too bad.. I will test it in future.

The 1012 beta BIOS "Support new CPUs", though nothing is listed for 1012 on the CPU list - maybe that's for Cedar Mill.
Wonder if the BIOS might be patchable … Microcode update - like the trick for patching 771-775 Xeons in