Comments on: Early Crucial T700 PCIe 5 NVMe SSD Benchmarks A Bit Underwhelming

By: Dave

Dave — Thu, 30 Mar 2023 09:01:32 +0000

As I recall, ALL of your AMD/Intel comparisons over the years have shown the same differences with AMD lagging behind.
I am with you: I don’t pay much attention to sequential speeds, as I will never be dragging 100GB files around all day, but the Q1T1 makes all the difference to me, as I use my PC the same as the majority of users do: Internet, videos, pictures, etc. I want my PC to be as ‘snappy’ as possible, which is what high Q1T1 speeds give us. That is why I became interested in the Samsung 990 Pro you reviewed: excellent Q1T1 results (along with the rest of the results). I guess they got the ‘quick death’ issue fixed with a new firmware release. At least I hope so.
Do you think AMD is aware of their SSD performance issue?
However, in the end, it looks like their new Ryzen 7000 Zen 4 CPUs are showing excellent benchmarks even with the SSD issue.

By: Les Tokar

Les Tokar — Tue, 21 Mar 2023 10:17:30 +0000

In reply to GuesT. Yes, both systems are different and both tests vary as well. Our testing of random performance is from the initial tests of our Phison gen 5 reference design and matches the industry standard where the client wants to validate that the SSD they just bought matches that of the manufacturers specifications. Thank you for commenting as we have amended our report slightly to more accurately reflect the intent in our statements. If it assists, we will do our best today to retest same reference design gen 5 drive in same configuration that Linus used exactly. We are confident that one will see a noticeable difference in results as is already evident in the bottom Q1T1 result.

By: GuesT

GuesT — Tue, 21 Mar 2023 06:14:58 +0000

> We would lay our reputation on the fact that you are going to see higher random 4K IOPS

You may put your qualification on the line explaining:

1. Why Linus’ CDM has Random 4K in Q32T1 mode and your own in Q32T16 mode?

1. How does the performance difference come about?

Because a) it’s possible to install the same NVMe driver on Windows for both systems (iirc) b) lock both processors to the same frequency c) probably possible to pin the driver to the same core or adjacent cores

d) replicate the benchmark numbers under Linux and compare to Windows figures e) disable CPU vulnerability mitigations and compare those against the default baseline