[Veliladon]

Apple deliver an absolute fuckton of memory bandwidth to their SoCs. A base M2 is swimming in 100GB/sec of memory bandwidth while the i7-1265U is 4/5 of that. All of the M1 dies are well above that number while on the Intel side the top of the line H and HX monsters are still limited to the 82GB/sec that dual channel LPDDR5-5200 puts out.

[Kon-Peki]

Intel is going in the right direction: the 13th-gen chips are at 89.5GB/sec with DDR5-5600 memory.

Don't think about the present, think about what the landscape could look like in 3-5 years ;)

[nottorp]

I think Apple is achieving that bandwidth with DDR4.

[Veliladon]

They're achieving that bandwidth by putting ridiculous bus widths on the SoCs. The M1 Pro has a 256-bit bus to memory, the M1 Max has a 512-bit bus to memory, and the M1 Ultra has a 1024-bit bus to memory.

[dispat0r]

No, Apple isn't achieving that bandwidth with DDR4: "M2 uses LPDDR5-6400"

Don't get me wrong, it's stunning performance, and having it on the same package as the CPU and GPU has other benefits.

[nottorp]

Ah they upgraded the ram between M1 and 2 then.