@AJXCR I don't know about the PM953 but the 850 PRO is a consumer SATA drive, you never should compare enterprise drives to consumer. As I said I don't know about the PM953 so this is just made up # examples to illustrate. The PM953 is rated at 19,000 IOPs for 100% of disk the 850 Pro is likely 8GB, and the PM953 may go from 19k to 10K IOPs once it hits steady state where as the 850 Pro drops below 10K and stays there even though it's rated for what 80k? Also, NVME drive are not limited by the SATA QD so you'll get more performance no matter what from NVME if you have the work load for it.
This is true for Intel 750 NVME as well as pretty much all consumer drives, and why so many of us here are on the hunt for enterprise drives on ebay
When you're looking at the Intel PDF specs for their various NVME drives be sure to checkout the "mixed workload" performance you'll see the P3700 greatly outperforms the other models when there are writes and reads going on at once and this is by a very large margin.
Will 4x1.2TB 750 NVME work for you... maybe, I don't know the work load. BUT, just remember you're likely never going to get anywhere near the rated performance of a consumer drive because they're tested differently, and run different firmware as to not jeopardize their enterprise sales.
If I went with the Intel 750's I would buy an additional 4 drives for a total of 8.
Understood on enterprise vs consumer products. I used the 850 Pro as an example simply due to fact that it is a staple consumer level ssd.
Based on what I've read, the
PM953 is a fairly dated low end prosumer drive. Specs are:
Form Factor: 2.5”/m.2
Capacity: 480GB, 960GB, and 1.92TB
Host Interface: PCIe Gen 3.0 x4 @ 32 Gb/s
MTBF: 2,000,000 hours
Power Consumption (Active/Idle): 9W / 1.9W
Endurance: 1.3 DWPD for 3 Years (0.8 DWPD for 5 Years ) >>>
Not great
UBER: in 10^17
Random Read (4K): Up to 240,000 IOPS
Random Write (4K): Up to 19,000 IOPS
Sequential Read: Up to 1,000 MB/s
Sequential Write: Up to 870 MB/s
Physical Dimensions: 70 x 100 x 7 mm
Weight: Up to 74 grams
Specs on a high level enterprise drive from Samsung drive from the same era (
PM1725) are:
Form Factor: 2.5”
Capacity (GB): 800GB, 1.6TB, 3.2TB
Host Interface: PCIe Gen 3.0 x4
MTBF: 2,000,000 hours
Power Consumption (Active/Idle): 25W/7W
Endurance: 5 DWPD (5 years)
Sequential Read: Up to 3,100 MB/s
Sequential Write: Up to 2000 MB/s
Random Read: Up to 750,000 IOPS
Random Write: Up to 120,000 IOPS
Physical Dimensions: 69 x 100 x 14 mm
Weigh: 140 grams
While I recognize that these numbers are fairly stratospheric, 19K RW 4K seems on the PM953 seems low..
RW 4K for other common drives:
P3700: 90,000 IOPS
Intel 750 (8GB Span): 290,000 IOPS
Intel P3600 (100% Span): 23,000 IOPS
My go to review for the Intel 750 vs the P3700 has always been:
Intel's 750 Series solid-state drive reviewed