But architecturally it isn't any different.
The GPU is in the chipset also leeched of the main memory and didn't have their own. The dedicated word doesn't mean it is a seperate chip but that it has its own dedicated video memory.
Aside from that architectural difference chip size is the only determinante of speed. How much transistors did they spend on the GPU. In that respect those old two chip designs on 40nm process don't really compare to a 22nm chip.
There used to be a northbridge and a southbridge. The northbridge is now always on the same chip. With the Haswell dual cores even the southbridge is on chip.
On how many chips something is spread out means nothing in most cases it is a waste of power and performance. It is only done if the resulting chip would be too big and expensive with everything included.
Assuming the same process having two chips half the size gets you nothing over one chip at full size, other than a lot of wasted logicboard space you could spend on getting a bigger fan in.
The GPU is in the chipset also leeched of the main memory and didn't have their own. The dedicated word doesn't mean it is a seperate chip but that it has its own dedicated video memory.
Aside from that architectural difference chip size is the only determinante of speed. How much transistors did they spend on the GPU. In that respect those old two chip designs on 40nm process don't really compare to a 22nm chip.
There used to be a northbridge and a southbridge. The northbridge is now always on the same chip. With the Haswell dual cores even the southbridge is on chip.
On how many chips something is spread out means nothing in most cases it is a waste of power and performance. It is only done if the resulting chip would be too big and expensive with everything included.
Assuming the same process having two chips half the size gets you nothing over one chip at full size, other than a lot of wasted logicboard space you could spend on getting a bigger fan in.