2021 ROG Flow X13 vs. 2021 ROG Strix G15: Full specs comparison

The following is a comprehensive comparison of the 2021 ROG Flow X13 and 2021 ROG Strix G15 specifications, including details on CPU, memory, storage, battery life, display quality, and other features.

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2021 ROG Flow X13 image

2021 ROG Flow X13

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2021 ROG Strix G15 image

2021 ROG Strix G15

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2021 ROG Flow X13 Pros

Reasons that 2021 ROG Flow X13 is better than 2021 ROG Strix G15.

Supports faster memory

The 2021 ROG Flow X13 supports a faster memory speed than the 2021 ROG Strix G15. It supports up to 4267MHz versus 3200MHz of system memory on the 2021 ROG Strix G15.

Memory type and speed
2021 ROG Flow X13 - LPDDR4X
4,267 MHz
2021 ROG Strix G15 - DDR4
3,200 MHz
About 39% lighter

The 2021 ROG Flow X13 weighed 2.87 pounds, 39% lighter than the 4.63 pounds 2021 ROG Strix G15.

Weight2021 ROG Flow X132021 ROG Strix G15
Pound
2.87 lbs.
4.63 lbs.
Kilogram
1.30 kg
2.10 kg

2021 ROG Strix G15 Pros

Reasons that 2021 ROG Strix G15 is better than 2021 ROG Flow X13.

Upgradable memory

The 2021 ROG Strix G15 comes with two SODIMM slots that allow you to replace or upgrade when needed. On the flip side, you can't upgrade RAM on the 2021 ROG Flow X13 since it has onboard memory.

Memory2021 ROG Flow X132021 ROG Strix G15
Slots
Onboard
x2
TypeLPDDR4XDDR4
16% larger display

The 2021 ROG Strix G15 has a 15.6-inch screen size 16% larger than the 13.4-inch 2021 ROG Flow X13.

Display size
2021 ROG Strix G15
15.6-inch
2021 ROG Flow X13
13.4-inch
Has two more ports and slots

The 2021 ROG Strix G15 has more ports and slots count than the 2021 ROG Flow X13. It has eight versus six amount of ports and slots on the 2021 ROG Flow X13.

Ports2021 ROG Flow X132021 ROG Strix G15
HDMIYesYes
headphone jackYesYes
power portNoYes
RJ-45NoYes
ROG XG Mobile InterfaceYesNo
USB-AYesYes x3
USB-CYes x2Yes
Total68
More versatile connectivity

The 2021 ROG Strix G15 has better versatile I/O connectivity than the 2021 ROG Flow X13. It has six versus four commonly used ports and slots on the 2021 ROG Flow X13.

Ports2021 ROG Flow X132021 ROG Strix G15
HDMIYesYes
headphone jackYesYes
USB-AYesYes
USB-CYesYes
power portNoYes
RJ-45NoYes

Key Similars

Similar characteristics share between 2021 ROG Flow X13 and 2021 ROG Strix G15.

Similar CPU performance

Both laptops has a similar multi-core CPU performance score.

Geekbench 5 multi-core score
2021 ROG Flow X13 - AMD Ryzen 9-5980HS
7,773
2021 ROG Strix G15 - AMD Ryzen 9-5900HX
7,663
2021 ROG Flow X13 - AMD Ryzen 9-5900HS
7,162
2021 ROG Strix G15 - AMD Ryzen 7-5800H
7,098
2021 ROG Strix G15 - AMD Ryzen 7-4800H
6,440
2021 ROG Strix G15 - AMD Ryzen 5-5600H
5,476
Supports the same maximum memory size of up to 32GB

Both laptops supports up to 32GB of system memory.

Max system memory size
2021 ROG Flow X13
32 GB
2021 ROG Strix G15
32 GB

Prices

Here are the latest price updates and offers for both devices.

2021 ROG Flow X13 Price
ASUS ROG Flow Z13 (2023) Gaming Laptop Tablet, 13.4” Nebula Display 16:10 QHD 165Hz, GeForce RTX 4050, Intel Core i9-13900H, 16GB LPDDR5, 1TB PCIe SSD, Wi-Fi 6E, Windows 11, GZ301VU-DS94,Black
 ASUS ROG Flow Z13 (2023) Gaming Laptop Tablet, 13.4” Nebula Display 16:10 QHD 165Hz, GeForce RTX 4050, Intel Core i9-13900H, 16GB LPDDR5, 1TB PCIe SSD, Wi-Fi 6E, Windows 11, GZ301VU-DS94,Black
By ASUS
$1,749.99
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ASUS ROG Flow X13 Ultra Slim 2-in-1 Gaming Laptop, 13.4” 120Hz FHD+ Display, GeForce GTX 1650, AMD Ryzen 9 5900HS, 16GB LPDDR4X, 1TB PCIe SSD, Wi-Fi 6, Windows 10 Home, GV301QH-DS96
 ASUS ROG Flow X13 Ultra Slim 2-in-1 Gaming Laptop, 13.4” 120Hz FHD+ Display, GeForce GTX 1650, AMD Ryzen 9 5900HS, 16GB LPDDR4X, 1TB PCIe SSD, Wi-Fi 6, Windows 10 Home, GV301QH-DS96
By ASUS
$1,259.00
$1,359.99 7% OFF
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Asus ROG Flow X13 Gaming 2-in-1 Laptop | 13.4" FHD+ 120Hz Glossy Touch 100% sRGB | AMD 8-Core Zen 4 Ryzen 9 7940HS (>i9-12900H) | 16GB DDR5 512GB SSD | Backlit FHD IR Camera Win11 Black + HDMI Cable
 Asus ROG Flow X13 Gaming 2-in-1 Laptop | 13.4" FHD+ 120Hz Glossy Touch 100% sRGB | AMD 8-Core Zen 4 Ryzen 9 7940HS (>i9-12900H) | 16GB DDR5 512GB SSD | Backlit FHD IR Camera Win11 Black + HDMI Cable
By Asus
$899.00
See at Amazon
2021 ROG Strix G15 Price
ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6” 300Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050 Ti, AMD Ryzen R7-5800H, 16GB DDR4, 1TB PCIe SSD, RGB Keyboard, Windows 10, Black, G513QE-ES76
 ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6” 300Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050 Ti, AMD Ryzen R7-5800H, 16GB DDR4, 1TB PCIe SSD, RGB Keyboard, Windows 10, Black, G513QE-ES76
By ASUS
$1,099.00
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ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6†144Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050, AMD Ryzen 7 4800H, 8GB DDR4, 512GB PCIe NVMe SSD, RGB Keyboard, Windows 10, G513IC-EB73
 ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6†144Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050, AMD Ryzen 7 4800H, 8GB DDR4, 512GB PCIe NVMe SSD, RGB Keyboard, Windows 10, G513IC-EB73
By ASUS
$909.99
$999.99 9% OFF
See at Amazon
ASUS ROG Strix G15 (2022) Gaming Laptop, 15.6” 300Hz IPS FHD Display, NVIDIA GeForce RTX 3060, AMD Ryzen 7 6800H, 16GB DDR5, 1TB SSD, RGB Keyboard, Windows 11 Home, G513RM-IS74
 ASUS ROG Strix G15 (2022) Gaming Laptop, 15.6” 300Hz IPS FHD Display, NVIDIA GeForce RTX 3060, AMD Ryzen 7 6800H, 16GB DDR5, 1TB SSD, RGB Keyboard, Windows 11 Home, G513RM-IS74
By ASUS
$979.99
$1,199.99 18% OFF
See at Amazon

Specs Comparison

Availability

2021 ROG Flow X132021 ROG Strix G15
Released20212021
Release DateAnnounced on January 13, 2021 (CES 2021)Announced on January 13, 2021 (CES 2021)
Applicable Models-
  • 2021 ROG Strix G15
  • ROG Strix G15 (2021)
  • 2021 ROG Strix G15 G513
Generations

Exterior

2021 ROG Flow X132021 ROG Strix G15
Dimensions11.77 x 8.74 x 0.62” (299 x 222 x 15.8 mm)13.94 x 10.20 x 0.89 - 1.07” (354 x 259 x 22.6 ~ 27.2 mm)
Weight2.87 lbs (1.30 kg)4.63 lbs (2.10 kg)
Colors
Black
Original Black Eclipse Gray Electro Punk
Keyboard and Trackpad
  • Full size 15” white backlit chicklet keyboard
  • 1.7mm key travel
  • Hotkeys:
    Volume up Volume down Microphone mute ROG Armoury Crate
  • N-KEY rollover
  • Full-size backlit keyboard
    ROG Overstroke Calibrated Keystrokes N-Key Rollover Aura Sync Bigger arrow keys Gaps between function keys
  • Hotkeys 
    Volume down volume up mute HyperFan Armoury Crate
  • RGB Lighting Options
    Per-Key RGB lighting 4 x Zone RGB lighting
  • Touchpad with integrated Numpad
    85% larger glass surface matte finish illuminated Numpad

Display

2021 ROG Flow X132021 ROG Strix G15
Size13.4 Inches15.6 Inches
Info
  • 13.4” WQUXGA 60Hz
    16:10 3840 x 2400 60Hz 116% sRGB 86% Adobe RGB 85% DCI-P3 Pantone Validated Touch Screen IPS Level Anti-Glare Adaptive-Sync Pantone Validated
  • 13.4” WUXGA 120Hz
    16:10 1920 x 1200 120Hz 100% sRGB 75% Adobe RGB 75% DCI-P3 Pantone Validated Touch Screen IPS Level Anti-Glare Adaptive-Sync Pantone Validated
  • 15.6” FHD 300Hz
    16:9 1920 x 1080 300Hz 3ms 100% sRGB 75% Adobe RGB Non-touch IPS Level Anti-Glare Adaptive-Sync
  • 15.6” WQHD 165Hz 
    16:9 3840 x 2160 165Hz 3ms 100% DCI-P3 Non-touch IPS Level Anti-Glare Adaptive-Sync

Ports

2021 ROG Flow X132021 ROG Strix G15
2021 ROG Flow X13 Ports
Image Source: ASUS
Left (4)
  • 1 x ROG XG Mobile Interface
    Exclusive interface with PCIe 3.0 x8 (Up to 63Gbps)
  • 1 x USB-C
    USB 3.2 Gen 2 (10 Gbps)
  • 1 x HDMI
    v2.0b
  • 1 x headphone jack
    Headphone/Microphone
Right (2)
  • 1 x USB-C
    USB 3.2 Gen 2 (10 Gbps), DisplayPort 1.4, Power Delivery
  • 1 x USB-A
    USB 3.2 Gen 2 (10 Gbps)
2021 ROG Strix G15 Ports
Image Source: ASUS
Left (3)
  • 2 x USB-A
    USB 3.2 Gen 1 (5 Gbps)
  • 1 x headphone jack
    Headphone/Microphone
Back (5)
  • 1 x USB-A
    USB 3.2 Gen 1 (5 Gbps)
  • 1 x USB-C
    USB 3.2 Gen 2 (10 Gbps), DisplayPort, Power Delivery
  • 1 x HDMI
    v2.0b
  • 1 x RJ-45
    1 Gbps
  • 1 x power port

Internal Specs

2021 ROG Flow X132021 ROG Strix G15
Processor
  1. AMD Ryzen™ 9 5900HS
    8 cores, 16 threads, 3.00 → 4.60 GHz, 4MB L2 Cache, 16MB L3 Cache, 35W
  2. AMD Ryzen™ 9 5980HS
    8 cores, 16 threads, 3.00 → 4.80 GHz, 4MB L2 Cache, 16MB L3 Cache, 35W
  1. AMD Ryzen™ 7 4800H
    8 cores, 16 threads, 2.90 → 4.20 GHz, 4MB L2 Cache, 8MB L3 Cache, 45W
  2. AMD Ryzen™ 5 5600H
    6 cores, 12 threads, 3.30 → 4.20 GHz, 3MB L2 Cache, 16MB L3 Cache, 45W
  3. AMD Ryzen™ 7 5800H
    8 cores, 16 threads, 3.20 → 4.40 GHz, 4MB L2 Cache, 16MB L3 Cache, 45W
  4. AMD Ryzen™ 9 5900HX
    8 cores, 16 threads, 3.30 → 4.60 GHz, 4MB L2 Cache, 16MB L3 Cache, 45W
Integrated Graphics
  1. AMD Ryzen™ 9 5900HS
    AMD Radeon™ Graphics
    8 Graphics Cores, 2100 MHz
  2. AMD Ryzen™ 9 5980HS
    AMD Radeon™ Graphics
    8 Graphics Cores, 2100 MHz
  1. AMD Ryzen™ 7 4800H
    AMD Radeon™ Graphics
    7 Graphics Cores, 1600 MHz
  2. AMD Ryzen™ 5 5600H
    AMD Radeon™ Graphics
    7 Graphics Cores, 1800 MHz
  3. AMD Ryzen™ 7 5800H
    AMD Radeon™ Graphics
    8 Graphics Cores, 2000 MHz
  4. AMD Ryzen™ 9 5900HX
    AMD Radeon™ Graphics
    8 Graphics Cores, 2100 MHz
Memory
16GB 32GB
Dual-Channel LPDDR4X 4266MHz Onboard Memory
16GB 32GB
Dual-Channel DDR4 3200MHz SDRAM.
2 x SODIMM slots
Discrete GraphicsNVIDIA® GeForce® GTX 1650
4GB GDDR6 VRAM (With ROG Boost up to 1255MHz at 35W (40W with Dynamic Boost)).
  • NVIDIA® GeForce RTX™ 3060
    6GB GDDR6 VRAM, with ROG Boost up to 1802MHz at 115W (130W with Dynamic Boost).
  • NVIDIA® GeForce RTX™ 3070
    8GB GDDR6 VRAM, with ROG Boost up to 1660MHz at 115W (130W with Dynamic Boost).
Storage
512GB 1TB
M.2 NVMe PCIe 3.0
512GB 1TB 2TB
M.2 NVMe PCIe 3.0.
2 x M.2 SSD slots, supports RAID-0.

Connectivity

2021 ROG Flow X132021 ROG Strix G15
Wi-FiIntel® Wi-Fi 6 with Gig+ performance (802.11ax)Intel® Wi-Fi 6 with Gig+ performance (802.11ax) 2x2 multi-antenna
BluetoothBluetooth 5.0Bluetooth 5.1
Ethernet- Gigabit LAN
Speed: 10/100/1000 Mbps.

Battery

2021 ROG Flow X132021 ROG Strix G15
Size62 Wh 4-cell lithium-ion
56Wh 90Wh
4-cell lithium-ion battery.
Battery LifeUp to 10 hours
Video playback.
Up to 12 hours of video playback.
Power Supply100W USB-C power adaptor
  • 240W
      ø6.0 mm power adapter.
  • 100W
      USB-C power adapter.
  • Supports fast charging technology with up to 50% in 30 minutes.

Software

2021 ROG Flow X132021 ROG Strix G15
OS
  • Windows 10 Home
  • Windows 10 Pro
  • Windows 10 Home
  • Windows 10 Pro
Built-in Apps
Armoury Crate GameVisual 1M Xbox Game Pass
Armoury Crate GameVisual Aura Creator Scenario Profiles

Camera & Audio

2021 ROG Flow X132021 ROG Strix G15
Camera Front-facing camera
Top-mount front camera, 0.92 Megapixels (1280 x 720 HD).
No Built-in camera.
Audio
  • 2x 1W speaker with Smart Amp Technology
  • Built-in array microphone
  • Two-Way AI Noise Cancelation
  • Speakers
    • 2 x 4W speaker with Smart Amp Technology.
    • 2.8x Louder Volume.
    • 3x More Bass.
    • 6.5dBa Dynamic Range.
  • Microphones
    • Built-in array microphone.
    • Two-Way AI Noise Cancelation.

Misc

2021 ROG Flow X132021 ROG Strix G15
InkingSupports ASUS Pen.-

Key Features

2021 ROG Flow X132021 ROG Strix G15
At Glance
Released in Early
2021
16:10
13.4”
1200p 120Hz
Weight
2.87 lb
1.30 kg
Up to
AMD Ryzen 9-5980HS
8C/16T, 3.00 → 4.80 GHz
Geekbench 5
1,450
Single Core
Geekbench 5
7,773
Multi-Core
With integrated
AMD Radeon™ Graphics
8 Graphics Cores, 2100 MHz
Configurable up to
32GB
4267 MHz LPDDR4X
2021 ROG Flow X13 Ports
NVIDIA GeForce
GTX 1650
4GB GDDR6
Released in
2021
16:9
15.6”
2160p 165Hz
Weight
4.63 lb
2.10 kg
Up to
AMD Ryzen 9-5900HX
8C/16T, 3.30 → 4.60 GHz
Geekbench 5
1,416
Single Core
Geekbench 5
7,663
Multi-Core
With integrated
AMD Radeon™ Graphics
8 Graphics Cores, 2100 MHz
Upgradable up to
32GB
3200 MHz DDR4
2021 ROG Strix G15 Ports
Nvidia GeForce
RTX 3070
8GB GDDR6

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