iMac M1 (2021) Hard Drive Speed Test

Introduction

• Device: iMac M1, 2021 model.
• Objective: Testing the hard drive speed using Blackmagic speed test software.
• Hard Drive Specs: 256 GB SSD, believed to be an M.2 soldered onto the motherboard.

Speed Test Process

Using Blackmagic Software

• Software: Blackmagic speed test.
• Procedure: Clicking the gear icon to select the target drive (internal iMac hard drive) and then starting the test.

Test Results

• Write Speed: Averaging around 1885 MB/s.
• Read Speed: Averaging around 2713 MB/s.
• Observation: The read speed is faster than the write speed.

File Transfer Test

• File Size: 100 GB mixed files.
• Transfer Time: Approximately 2 seconds for internal transfer within the iMac.

Testing External Samsung SSD T7

• Product: Samsung Portable SSD T7.
• Specs: 500 GB, USB-C, performance up to 1050 MB/s read and 1000 MB/s write speed.
• Connection: USB-C to USB-C.

Test Procedure

• Formatting: Erased and reformatted to macOS Extended (Journaled).
• File Transfer Test: Transferring the same 100 GB mixed files.

Test Results

• Transfer Time: Around 2 minutes for 100 GB.
• Speed Test: Using Blackmagic software again after connecting the Samsung SSD.
• Write Speed: About 590 MB/s.
• Read Speed: About 635 MB/s.
• Comparison: Significantly lower than the iMac’s internal drive speeds.

Conclusion

• Findings: The iMac’s internal SSD shows significantly higher speed compared to the external Samsung SSD T7.
• Recommendation: For ultra-fast file transfers, the internal SSD is preferable.
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This summary highlights the key points of the hard drive speed test conducted on the iMac M1 and an external Samsung SSD T7, showing a significant speed advantage for the iMac’s internal SSD. If you have any specific questions or need more details about any part of the video, feel free to ask!