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I’ve purchased M.2 PCIe SSD which has official speeds 1300MB/s Write - and 3000M/s reads + I’ve bought adapter and drive has 650MB/s in reads and 750MB in write.
What are max speeds on iMac 27 2013 PCIe - not Apple SSD - but just PCIe
Thank You :)
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Review this guide: The Ultimate Guide to Apple’s Proprietary SSDs
The I/O speed of your SSD and what the system has for an interface limits the throughput.
The 2013 iMac PCIe interface is limited to mSATA III (6.0 Gb/s) interface (Red) as you can see here in this interface breakdown. Be aware a PCIe/AHCI or PCIe/NVMe drive and adapter won’t work in this system.
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thank You - got it - all iMacs till 2014 have "slow" PCIe
Only start from 2015 they have faster PCIe
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