Hi everyone,
When looking around for an nvme ssd upgrade, I first decided to benchmark my current SATA 850 EVO.
CDM gives:
I am read/writing sequentially at over 5.5 GB/s, where as sata III ssds are advertised at ~500 MB/s. What is going on here? I cross-checked with the Samsung magician software, and this gave 4.7 GB/s. With AS SSD benchmark:
Three independent bench-marking tools give me about a factor 10 better performance than expected (again: ~500 MB/s)
Can somebody explain this? Am I misinterpreting these results? Something else?
If these results are correct, why even bother upgrading to nvme ssds who read at about 1.5 GB/s? I am stumped here...
When looking around for an nvme ssd upgrade, I first decided to benchmark my current SATA 850 EVO.
CDM gives:
Code:
------------------------------------------------------------------------------
CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
Crystal Dew World: [URL]https://crystalmark.info/[/URL]
------------------------------------------------------------------------------
[LIST]
[*]MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
[*]KB = 1000 bytes, KiB = 1024 bytes
[/LIST]
[Read]
Sequential 1MiB (Q= 8, T= 1): 5661.387 MB/s [ 5399.1 IOPS] < 1295.56 us>
Sequential 1MiB (Q= 1, T= 1): 8243.114 MB/s [ 7861.2 IOPS] < 126.85 us>
Random 4KiB (Q= 32, T=16): 2460.413 MB/s [ 600686.8 IOPS] < 823.81 us>
Random 4KiB (Q= 1, T= 1): 405.425 MB/s [ 98980.7 IOPS] < 10.00 us>
[Write]
Sequential 1MiB (Q= 8, T= 1): 5683.718 MB/s [ 5420.4 IOPS] < 1288.88 us>
Sequential 1MiB (Q= 1, T= 1): 5677.030 MB/s [ 5414.0 IOPS] < 184.17 us>
Random 4KiB (Q= 32, T=16): 1765.282 MB/s [ 430977.1 IOPS] < 1149.52 us>
Random 4KiB (Q= 1, T= 1): 275.664 MB/s [ 67300.8 IOPS] < 14.70 us>
Profile: Default
Test: 1 GiB (x5) [Interval: 5 sec] <DefaultAffinity=DISABLED>
Date: 2019/12/20 23:53:36
OS: Windows 10 [10.0 Build 18363] (x64)
Code:
AS SSD Benchmark 2.0.6821.41776
------------------------------
Name: Samsung SSD 850 EVO 250GB
Firmware: EMT02B6Q
Controller: storahci
Offset: 579584 K - OK
Size: 232.88 GB
Date: 12/21/2019 12:07:50 AM
------------------------------
Sequential:
------------------------------
Read: 4494.72 MB/s
Write: 2010.67 MB/s
------------------------------
4K:
------------------------------
Read: 113.95 MB/s
Write: 184.42 MB/s
------------------------------
4K-64Threads:
------------------------------
Read: 9834.10 MB/s
Write: 9661.70 MB/s
------------------------------
Access Times:
------------------------------
Read: 0.071 ms
Write: 0.027 ms
------------------------------
Score:
------------------------------
Read: 10398
Write: 10047
Total: 25576
------------------------------Can somebody explain this? Am I misinterpreting these results? Something else?
If these results are correct, why even bother upgrading to nvme ssds who read at about 1.5 GB/s? I am stumped here...
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