this post was submitted on 16 Nov 2025
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~~MicroSD cards are crazy slow compared to all other storage, this doesnt seem like a good idea~~
I had a chance to test Watch Dogs Legion on my fastest SD card (Samsung, v30, 170MB/s read, 130MB/s write) and it was perfectly playable, even cranked to ultra. So I take back my assertion.
I guess my camera software must just be crazy slow, because im more used to real world 20MB/s read.
I will still assert that you need a good high speed card reader, I have seen some cheapo ones that are garbage, but given Valve has full control of that, shouldn't be a problem.
Manufacturers have wildly oversold you on how much speed you need to run a game. I use my SD card for almost all of my games on my steam deck none of them have any problems loading none of them load slowly.
Games are very good about preloading assets before they're needed
For real, I only talk by experience and with old hardware, but my hacked Switch V1 runs everything, even its OS purely from the SD and I feel it runs just the same as with stock storage.
I have tried the same on my hacked switch v1. I was running Overcooked 2 from the sd card and got a little frustrated with the load times so I tries moving in to internal storage. Noticed no improvement in load speed at all. But I don't know the speed of my SD card or the speed of the switch, it might as well be the same.
Are you using the real internal storage or emulated? Emulated internal storage is still on the SD card.