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> On the plus side, embedding RAM into SoC is one of the magic tricks of Apple for such massive performance, due to short path lengths. I assume SSD got a simil
by masklinn 4y ago
> On the plus side, embedding RAM into SoC is one of the magic tricks of Apple for such massive performance, due to short path lengths. I assume SSD got a similar treatment.
Neither RAM nor SSD is embedded in the SoC. The RAM is just soldered on the package. While this makes for slightly shorter path lengths, the only real gain is motherboard footprint.
- bayindirh 4y agoYou're right about RAM, that's my mistake. I never implied that they also embedded SSD into the SoC. I just said that they may have tried to minimize path lengths. As an old overclocker, I don't believe that this compact soldering is only due to motherboard footprint. It would allow them greatly push the RAM chips to their limits.
- bonsaibilly 4y ago> While this makes for slightly shorter path lengths, the only real gain is motherboard footprint. Well, that and the ability to use LPDDR5 in the first place. There’s no such thing as a pluggable LPDDR5 stick; the design decisions around low voltages & high signaling rates make it physically impractical to survive the longer traces and discontinuities involved in the signal traversing a connector.
- masklinn 4y ago> Well, that and the ability to use LPDDR5 in the first place. You can solder it on the motherboard, you don't have to solder it on the package.
- bonsaibilly 4y agoAh yeah, I was speaking to the soldering part and missed the SOC part.
- fliptables 4y agoAbandoning the common slot/sodimm design also lets them play with the channel configuration, which they'd need to do to achieve the bandwidth they claim for the Pro and Max chips.
- masklinn 4y agoHas reading comprehension entirely abandoned this platform?