Lenovo ThinkBook 15 G4 IAP (21DJ) vs. ASUS ROG Flow X16 (GV601RW)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo ThinkBook 15 G4 IAP (21DJ) and ASUS ROG Flow X16 (GV601RW). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.

Laptop Specifications Comparison

Lenovo ThinkBook 15 G4 IAP (21DJ) vs. ASUS ROG Flow X16 (GV601RW) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Product Type Notebook - 180-degree hinge design Notebook
Dimensions (WxDxH) 35.7 cm x 23.5 cm x 1.89 cm 35.5 cm x 24.3 cm x 1.94 cm
Weight 1.7 kg 2.1 kg
Case Material Aluminium (top), polycarbonate ABS (bottom) -
Colour Dual tone mineral grey Eclipse grey
DISPLAY Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Screen Size (Type) 15.6" - IPS 16"
Touchscreen - Yes
LCD Backlight Technology LED backlight Mini LED backlight
Screen Resolution 1920 x 1080 (Full HD) 2560 x 1600 (QHD+)
V-Sync Rate at Max Res. - 165 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness 300 cd/m² 1100 cd/m²
Colour Gamut 45% NTSC 100% DCI-P3
Features Anti-glare, 170° viewing angle Anti-glare, HDR (high dynamic range), 3 ms response rate, ±85° horizontal viewing angle, ±85° vertical viewing angle, FreeSync Premium Pro Technology, Pantone Validated, Dolby Vision
PROCESSOR Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
CPU Intel Core i5 (12th Gen) 1235U / 1.3 GHz AMD Ryzen 9 6900HS / 3.3 GHz
Max Turbo Speed 4.4 GHz 4.9 GHz
Number of Cores 10-core 8-core
Cache 12 MB L3 - 16 MB
Features Integrated memory controller -
MEMORY Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
RAM 8 GB (provided memory is soldered) 32 GB (2 x 16 GB)
Max RAM Supported 40 GB 64 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 3200 MHz 4800 MHz
Rated Speed 3200 MHz -
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 1 2
Empty Slots 1 0
STORAGE Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe) 1 TB SSD M.2 PCIe 4.0 - NVM Express (NVMe), Performance
AUDIO & VIDEO Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) Intel Iris Xe Graphics NVIDIA GeForce RTX 3070 Ti / AMD Radeon 680M
Max Monitors Supported 3 external monitor(s) -
Video Memory - 8 GB GDDR6 SDRAM
Video System Features - NVIDIA Optimus, MUX Switch
Camera Yes - 1080p Yes - 720p
Camera Features Privacy shutter, fixed focus IR camera, Windows Hello
Sound Stereo speakers, dual array microphone Stereo speakers, array microphone
Codec Realtek ALC3287 -
Compliant Standards High Definition Audio, Dolby Audio Dolby Atmos
Audio Features - Noise-cancellation technology, Smart Amplification technology
COMMUNICATIONS Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.2 Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller M.2 Card -
Network Interface Gigabit Ethernet -
Ethernet Controller Intel I219-V -
Features Wake-on-LAN (WOL), dual stream (2x2) Dual stream (2x2)
BATTERY Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Technology Lithium polymer 4-cell Lithium Ion
Battery Capacity (Size) 45 Wh 90 Wh
Battery Life Up to 8 hours -
Battery Run Time Local video (1080p) playback time (150 nits): up to 8 hours -
AC ADAPTER Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 240 Watt, 20 V, 12 A
INPUT Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight Yes Yes (RGB)
Features Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad Chiclet keyboard
CONNECTIONS & EXPANSIONS Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Slots - 2 x M.2 (PCI Express / SATA) (1 free)
Interfaces 2 x USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB 3.2 Gen 1 (Always On)
USB 3.2 Gen 1
USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI
LAN
Headphone/microphone combo jack
Headphone/microphone combo jack
2 x USB 3.2 Gen 2
2 x USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery)
HDMI
External PCI Express
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) Yes (microSD, microSDXC UHS-II)
SOFTWARE Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Operating System (OS) Windows 11 Pro - English Windows 11 Home
Software Included Microsoft Office (Trial) -
MISCELLANEOUS Lenovo ThinkBook 15 G4 IAP (21DJ) ASUS ROG Flow X16 (GV601RW)
Included Accessories USB-C slim wall mount power adapter Power adapter
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Firmware Trusted Platform Module (TPM) Security Chip
Security Slot Type Kensington nano security slot -
Theft/Intrusion Protection Security lock slot (cable lock sold separately) -
Features Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro System password, ASUS Aura Sync technology
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3, TUV Rheinland Low Blue Light (Software Solution) -
Repairability Index - 7.1 (out of 10)
ENERGY STAR Certified Yes -
EPEAT Compliant EPEAT Gold -
Max Operating Temperature 35 °C -
Min Operating Temperature 5 °C -
Humidity Range Operating 8 - 95% -
Manufacturer Warranty Limited warranty - 1 year - pick-up and return -
Model Number - M5039W
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