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by marcan_42
1682 days ago
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Ah yes, "technobabble". I'll go back to porting Linux to this thing then; clearly you're not interested in hearing about how these things are designed. It doesn't take being a senior hardware engineer to be able to count bus width and calculate bandwidth, though, so I'm still curious how you want a laptop built with the 8 DIMM slots it'd take to match the memory bandwidth of the M1 Max. Remember, these things have high performance integrated GPUs, that perform at the same level as discrete ones. Ever wonder why discrete GPUs haven't had modular RAM for a couple decades now? Yeah. Bus width. > high performing modular RAM architecture already exist The M1 Max has a memory bandwidth of 409 GB/sec. A top spec EPYC server (Rome) chip has 410 GB/sec of memory bandwidth, with 8 channels populated with the fastest RAM they'll take. Indeed, high performing modular RAM architectures do exist. In servers that eat huge amounts of power and require 8 DIMMs to go that fast. Good luck fitting that into a laptop. But I guess this is all still just technobabble to you :-) |
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