Asus ZenBook 14X (2023) laptop review: OLED ultrabook at its limit


Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N





4252 (4172.12min – 4252.28max) MB/s ∼100% +93%

LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ





3966 (3953.76min – 3966.17max) MB/s ∼93% +80%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB





3747 (3711.67min – 3747.4max) MB/s ∼88% +70%

Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00





2974 (2950.9min – 2974.18max) MB/s ∼70% +35%

Average of class Subnotebook
  (406 – 4315, n=74, last 2 years) Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N




2293 (2283.8min – 2292.84max) MB/s ∼54% +4%

Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK




2203 (2164.89min – 2202.64max) MB/s ∼52%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (2031 – 2305, n=7) LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ




3797 (3779.06min – 3796.85max) MB/s ∼100% +26%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB





3470 (3416.05min – 3470.37max) MB/s ∼91% +15%

Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00





3338 (3184.11min – 3338.46max) MB/s ∼88% +10%

Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




3321 (3278.42min – 3320.91max) MB/s ∼87% +10%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (3024 – 3446, n=7) Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK




3024 (2969.99min – 3023.88max) MB/s ∼80%

Average of class Subnotebook
  (153.3 – 4326, n=75, last 2 years) Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N




2045 (1925.53min – 2044.83max) MB/s ∼54% -32%

Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




7093 (6501.8min – 7092.64max) MB/s ∼100% +98%

LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ





6746 (6416.62min – 6746.33max) MB/s ∼95% +89%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB




6656 (5809.03min – 6655.73max) MB/s ∼94% +86%

Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00





5134 (4615.2min – 5134.25max) MB/s ∼72% +44%

Average of class Subnotebook
  (469 – 7036, n=73, last 2 years) Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK





3576 (3118.88min – 3576.06max) MB/s ∼50%

Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N





3552 (3135.24min – 3552.16max) MB/s ∼50% -1%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (3355 – 3652, n=7) Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




4971 (4951.54min – 4970.59max) MB/s ∼100% +44%

LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ




4883 (4828.47min – 4882.8max) MB/s ∼98% +42%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB




4468 (4431.23min – 4467.85max) MB/s ∼90% +30%

Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00




4130 (4116.86min – 4129.71max) MB/s ∼83% +20%

Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK




3443 (540.23min – 3442.93max) MB/s ∼69%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (3287 – 3497, n=7) Average of class Subnotebook
  (60 – 5179, n=74, last 2 years) Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N




2450 (2198.24min – 2449.82max) MB/s ∼49% -29%

LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ




86.4 (86.03min – 86.38max) MB/s ∼100% +35%

Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00





76.3 (74.19min – 76.34max) MB/s ∼88% +19%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB




67.5 (65.71min – 67.48max) MB/s ∼78% +5%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (59.7 – 70.9, n=7) Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK




64 (61.9min – 64max) MB/s ∼74%

Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N




63 (62.21min – 62.95max) MB/s ∼73% -2%

Average of class Subnotebook
  (12.6 – 141.9, n=74, last 2 years) Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




53 (52.35min – 52.99max) MB/s ∼61% -17%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (182.1 – 421, n=7) LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ





209 (205.73min – 209.33max) MB/s ∼72% +15%

Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK





182.1 (177.01min – 182.12max) MB/s ∼62%

Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00




174.3 (169.24min – 174.29max) MB/s ∼60% -4%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB





170.9 (165.47min – 170.92max) MB/s ∼59% -6%

Average of class Subnotebook
  (41.1 – 360, n=74, last 2 years) Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N




157.9 (153.98min – 157.89max) MB/s ∼54% -13%

Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




115 (113.84min – 115max) MB/s ∼39% -37%

LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ




3394 (2656.47min – 3393.51max) MB/s ∼100% +401%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (677 – 1864, n=7) Average of class Subnotebook
  (162 – 3484, n=74, last 2 years) Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00





791 (762.43min – 791.09max) MB/s ∼23% +17%

Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




767 (749.55min – 766.86max) MB/s ∼23% +13%

Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK





677 (625.48min – 677.28max) MB/s ∼20%

Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N





663 (638.34min – 663.33max) MB/s ∼20% -2%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB





540 (532.43min – 540.23max) MB/s ∼16% -20%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (503 – 3373, n=7) LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ





2078 (1577.94min – 2078.28max) MB/s ∼88% +313%

Average of class Subnotebook
  (130 – 2554, n=74, last 2 years) Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00





517 (507.17min – 517.15max) MB/s ∼22% +3%

Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK




503 (264.6min – 502.73max) MB/s ∼21%

Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N




435 (416.67min – 434.59max) MB/s ∼18% -14%

Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB





416 (398.57min – 416.29max) MB/s ∼18% -17%

Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N




248 (232.5min – 247.79max) MB/s ∼10% -51%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (4782 – 7839, n=7) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Average of class Subnotebook
  (545 – 8363, n=71, last 2 years) LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Average Micron 2450 1TB MTFDKBA1T0TFK
  (1203 – 2766, n=7) Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Average of class Subnotebook
  (199 – 3224, n=71, last 2 years) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Average Micron 2450 1TB MTFDKBA1T0TFK
  (2045 – 3685, n=7) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Average of class Subnotebook
  (251 – 3765, n=71, last 2 years) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB


5411.56 MB/s ∼100% +77%

Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Average Micron 2450 1TB MTFDKBA1T0TFK
  (2892 – 3199, n=7) Average of class Subnotebook
  (447 – 5546, n=71, last 2 years) Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N


2849.89 MB/s ∼100% +28%

Average Micron 2450 1TB MTFDKBA1T0TFK
  (2232 – 3173, n=7) Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Average of class Subnotebook
  (277 – 3955, n=71, last 2 years) Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Average Micron 2450 1TB MTFDKBA1T0TFK
  (60 – 91.6, n=7) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Average of class Subnotebook
  (8.95 – 96.2, n=71, last 2 years) Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Average Micron 2450 1TB MTFDKBA1T0TFK
  (194.8 – 343, n=7) Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Average of class Subnotebook
  (48 – 294, n=71, last 2 years) LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Average Micron 2450 1TB MTFDKBA1T0TFK
  (837 – 2361, n=7) Average of class Subnotebook
  (145 – 2783, n=71, last 2 years) Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Average Micron 2450 1TB MTFDKBA1T0TFK
  (1583 – 3048, n=7) Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Average of class Subnotebook
  (157.4 – 3196, n=71, last 2 years) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Average of class Subnotebook
  (0.021 – 0.5, n=70, last 2 years) Average Micron 2450 1TB MTFDKBA1T0TFK
  (0.027 – 0.082, n=7) Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00 Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Average Micron 2450 1TB MTFDKBA1T0TFK
  (0.131 – 0.18, n=7) Asus ZenBook 14X UX3404VC
Micron 2450 1TB MTFDKBA1T0TFK Lenovo Slim Pro 7 14ARP8
SK hynix PC801 HFS512GEJ9X115N Dell Inspiron 14 Plus 7420
SK Hynix BC711 512GB HFM512GD3GX013N Average of class Subnotebook
  (0.013 – 0.703, n=71, last 2 years) Dell XPS 13 Plus 9320 i7-1280P OLED
WDC PC SN810 512GB LG Gram 14Z90Q
Samsung PM9A1 MZVL2512HCJQ Asus ROG Flow Z13 GZ301V
WD PC SN740 SDDPTQD-1T00

* … smaller is better


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