Comment on Introducing Raspberry Pi 5
talkingpumpkin@lemmy.world 9 months ago
One of the most exciting additions to the Raspberry Pi 5 feature set is the single-lane PCI Express 2.0 interface.
IIUC PCIe2.0x1 means 0.5GB/s, which is slower than USB 2 (I’m talking USB 2 specs - no idea how USB actually performs in PIs). I can’t wait for people to buy that NVME hat and mount WD Blacks on that :)
Scholars_Mate@lemmy.world [bot] 9 months ago
USB 2 is 480 Mb/s, not 480 MB/s. 480 Mb/s is 60 MB/s, so the 500 MB/s from PCIe 2.0 x 1 is quite a bit faster and is about the limit of what a SATA 3 interface could do. Also, sequential throughput isn’t nearly as important as most people think. Random IO, which NVMe drives excel at will make a far more noticeable impact on real world performance.
talkingpumpkin@lemmy.world 8 months ago
Good catch on my megabit vs megabyte blunder!