[SSD performance] Dell XPS 13 vs Lenovo X1 Carbon

[leftismer]

Hello, I'm planning to buy one of those laptops (XPS 13 9360 256GB and X1 Carbon 2017 256GB) and I've found out, that the performance of SSDs is very different on these devices:

Dell:
Sequential Read: 1233 MB/s
Sequential Write: 732.6 MB/s
512K Read: 1036 MB/s
512K Write: 439.9 MB/s
4K Read: 35.55 MB/s
4K Write: 130 MB/s
4K QD32 Read: 536.9 MB/s
4K QD32 Write: 218.3 MB/s

Lenovo:
Sequential Read: 1827 MB/s
Sequential Write: 1383 MB/s
512K Read: 814 MB/s
512K Write: 1098 MB/s
4K Read: 60.97 MB/s
4K Write: 172.2 MB/s
4K QD32 Read: 601.2 MB/s
4K QD32 Write: 495.6 MB/s

So my question is: how much is the difference perceptible in real life usage? And is it a good deal to pay 33% more for the Lenovo? I don't mind any other features, just SSD performance. The laptop is gonna be used mainly for programming and some very light image editing (graphics for games).

 

[MiSJAH]

I've gone from 2 x 750GB WD Black in RAID0 to a single SATA SSD (max read 550 MB/s) to 3 x SATA SSD RAID0, to single PCIe SSD (Toshiba max read ~1800MB/s), to 2 x Samsung 960 EVO 500GB (max read 3400MB/s) to single Samsung 960 500GB (max speed ~3300MB/s).

Noticeable improvements from HDD to SATA SSD and from SATA SSD to PCIe. No real benefits in the RAID0 PCIe SSDs to dropped down to a single.

So not really worth the premium for the improvement. Also you can always add a faster SSD later if circumstance requires.

 

[leftismer]

Thanks for answer