How fast will the bus speed be of an AMD Athlon 64?

[Kain]

Well?

[volt]

I'm not sure. Maybe it will start with 400 or even 433 :)

[jolle]

better start out high, from what i understand the
memory controller is integrated in the CPU and not
the Mobo, so there is no need for a northbridge (or south?)
but that will also mean you might have to buy a new CPU to
support faster memorys..
Guess its no downside really, keep the mobo and upgrade
the CPU only..
i guess...

With DDR2 productions starting up now maybe there is some
hope it will use DDR2 at some nice clockfrequency..
500mhz fsb wouldnt hurt...

[Nemesis]

An Athlon 64 doesn't have an FSB, it has an 800MHz Hypertransport connection, as the memory controller is on the CPU die itself. There is no need for a front side bus though which the CPU communicates with the memory controller, this is supposed to improve latency. The downside of having an on-die memory controller is that as new memory tecnology appears, the Athlon 64 CPU will have to be re-designed slightly to accomodate.

[Dazz]

Yeap it's a bumer, also the Athlon 64 will be clocklocked so no overclocking till people can sus this out.

[StealthHawk]

nobody knows anything concrete about the Athlon64's memory controller. AMD is being very tight lipped about it.

[SavagePaladin]

Originally posted by StealthHawk
nobody knows anything concrete about the Athlon64's memory controller. AMD is being very tight lipped about it.
Understandable...from what I've been reading, it may have changed since the delay (maybe it was among the reasons for the delay...among the others the Thoroughbred B/Barton performing so well)

What it SOUNDS like is there'll be a 1meg and a 256k cache ver of the Ath64 now, but both will have only a 64 bit mem controller, unlike Opterons 128 bit...and it'll start at 400mhz for the actual RAM

Of course, thats unconfirmed. We'll see!

[reever2]

Originally posted by Dazz
Yeap it's a bumer, also the Athlon 64 will be clocklocked so no overclocking till people can sus this out.

And who told you this? As far as i know neither the opteron or a64 will be clocklocked as that is stupid and goes against everything amd has done to show its dedication to enthusiasts


And btw xbit labs has a preview of the a64 out and it the memory was running at 200mhz so dont throw the idea of having adjustable memory freq out the window yet. There also were some options in the bios for overclocking