Memory Controller where?

[Prometheus]

Where is the memory controller for an AMD64 cpu? On the cpu or the motherboard?

 

[Person]

Integrated memory controller = inside the CPU
memory controller = An Extra on a mainboard

 

[Prometheus]

Same thing I though
but what do you mean by "memory controller = An Extra on a mainboard"

 

[Person]

Same thing I though
but what do you mean by "memory controller = An Extra on a mainboard"

Some boards have them others dont. The more high-end boards have them Built-in it just helps get the most out of the RAM.

 

[Prometheus]

The reason I posted this was that the guy at Matrix told me it was on the mobo and not the cpu. After I repeatedly told him the reviews said integrated controller.

 

[Person]

The reason I posted this was that the guy at Matrix told me it was on the mobo and not the cpu. After I repeatedly told him the reviews said integrated controller.

Thats what we call a noob...

 

[ShockG]

Person is right but not entirely. (Websites just confuse the issue most of the time)

Anyway all CPU's have a memory controller either on the mobo or CPU itself (athlon64)

The memory controller n P4 systems is on the motherboard northbridge (the thing with the big heatsink) and when we talk about the 865 or 955 chipset it's usually refering to the northbridge which controlls memory\pci-e\pci and sometimes IDE data and links it all with the CPU.

On the Athlon64 the motherboards still have northbridges, but the memory controller is on the die itself. That is why the Athlon64 gets massive memoory bandwidth compared to P4 systems. The memory communicates directly with the cpu and since the controller is in such close proximity to the cpu die(s), it sufferes less from timmings than say a P4 or athlonXP system.

The internal memory controller is what makes it necessary to move to AM2 to get DDR2 support.

Hope that helps

 

[supersunbird]

Person is right but not entirely. (Websites just confuse the issue most of the time)

Anyway all CPU's have a memory controller either on the mobo or CPU itself (athlon64)

The memory controller n P4 systems is on the motherboard northbridge (the thing with the big heatsink) and when we talk about the 865 or 955 chipset it's usually refering to the northbridge which controlls memory\pci-e\pci and sometimes IDE data and links it all with the CPU.

On the Athlon64 the motherboards still have northbridges, but the memory controller is on the die itself. That is why the Athlon64 gets massive memoory bandwidth compared to P4 systems. The memory communicates directly with the cpu and since the controller is in such close proximity to the cpu die(s), it sufferes less from timmings than say a P4 or athlonXP system.

The internal memory controller is what makes it necessary to move to AM2 to get DDR2 support.

Hope that helps

This is correct...

Some northbridges also contain integrated video controllers

 

[supersunbird]

On these kind of PC shop idiots.

Back in the day this guy was bragging that his boss had a Voodoo 5 5500 and that it had 3 graphics processors on and it was much better than my Geforce2 (which wasn't true except for the then new FSAA thing) I tried to correct him that it only had TWO, but he just kept insisting that it had 3 since he was the one that had installed it.

I dont know how he err'd like that, but a few months later the shop had closed...

 

[Prometheus]

It doesn't really matter what he tried to tell me, as I try to keep informed by reading at least two pc mags. I don't listen to everything these people try to tell me.