- Dec 14, 2023
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View: https://imgur.com/a/2XPPdzI
I have an MSI GL75 Leopard gaming laptop. It’s plugged in to a power source. The drives are brand new and formatted to both NTFS and exFAT for testing, results are the same.
First pictured in the linked imgur album is a CrystalDiskMark benchmark of the Samsung T7 external SSD which advertises 1050/1000 MB/s. As you can see it comes well within the upper read speeds but falls more than halfway short of the expected write speeds.
It’s connected to my USB-C 3.2 gen 2 port which I have to assume is working fine or I’d think it would fail to even reach those read speeds to begin with.
In the second picture I tested an nvme drive within an enclosure but using the same port and different cable (included with the enclosure). It advertises 3500/3000 read/write MB/s and again reaches the upper end of the inherent 10Gbps transfer rate limits for read speed, plus improved write speeds but still around half of what it should be.
Bought two more SSDs for extra testing-- another Samsung T7 in case the first was a dud, and a Walmart brand "onn." SSD. Both advertise 1000MB/s write speeds and still fall halfway short.
I looked around and tested with write caching enabled and disabled, same difference. Firmware is updated on the Samsung SSD and read/write speeds corroborated by their own software as well. I've seen plenty of reviews of people actually achieving upwards of 900+ MB/s write speeds so clearly something is amiss here with my system.
I'm open to as many ideas as you guys can throw at me, please.
Edit 1: I should add that I tested multiple different test file sizes in CDM ranging from 8GB to 64GB, and different profiles (default, peak performance, real world performance etc). Small variations here and there but still a very common factor of write speeds at half those of read speeds.
I have an MSI GL75 Leopard gaming laptop. It’s plugged in to a power source. The drives are brand new and formatted to both NTFS and exFAT for testing, results are the same.
First pictured in the linked imgur album is a CrystalDiskMark benchmark of the Samsung T7 external SSD which advertises 1050/1000 MB/s. As you can see it comes well within the upper read speeds but falls more than halfway short of the expected write speeds.
It’s connected to my USB-C 3.2 gen 2 port which I have to assume is working fine or I’d think it would fail to even reach those read speeds to begin with.
In the second picture I tested an nvme drive within an enclosure but using the same port and different cable (included with the enclosure). It advertises 3500/3000 read/write MB/s and again reaches the upper end of the inherent 10Gbps transfer rate limits for read speed, plus improved write speeds but still around half of what it should be.
Bought two more SSDs for extra testing-- another Samsung T7 in case the first was a dud, and a Walmart brand "onn." SSD. Both advertise 1000MB/s write speeds and still fall halfway short.
I looked around and tested with write caching enabled and disabled, same difference. Firmware is updated on the Samsung SSD and read/write speeds corroborated by their own software as well. I've seen plenty of reviews of people actually achieving upwards of 900+ MB/s write speeds so clearly something is amiss here with my system.
I'm open to as many ideas as you guys can throw at me, please.
Edit 1: I should add that I tested multiple different test file sizes in CDM ranging from 8GB to 64GB, and different profiles (default, peak performance, real world performance etc). Small variations here and there but still a very common factor of write speeds at half those of read speeds.
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