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| sc94597 said: Also how does the Rog Ally achieve 100 GBps with dual-channel LPDDR5-6400? Edit: Never-mind, I totally misread your post. Also Asus is probably listing the Rog Ally as dual channel even though it is technically quad channel just to preserve the traditional meaning. Digging in further, I don't think the module count matters, it is what each module supports. The modules are the orange squares. It still supports quad-channel and has a total memory bandwidth of about 120 GBps. The memory it uses is K3KL3L30CM-BGCT Compare that to the Rog Ally board that has four modules. But the modules are of 32x "organization" K3LKBKB0BM-MGCP . Switch 2 could have something similar to the Legion Go. Two 64x "organization" modules or in Micron's language "bus-width" that support quad-channel. |
It does matter because in practice each module can't sustain the maximum bandwidth simultaneously for every channel using the most common bank modes. It would need to operate at half the command clocks unless you double the burst length but that still falls short of the theoretical maximum. See this for reference.
I don't know how the Legion GO Samsung's RAM operates but the above is true for Micron DRAM with 4 dies per module as per the rumored spec sheets.
That being said, we're discussing hardware comparable in price to the PlayStation 5 Pro vs. a company known always to release underpowered hardware. We've been in this discussion multiple times over the past generations, so yeah. The games end up looking good but the hardware is almost always the cheapest possible.
