2021 ROG Zephyrus G15 vs. 2020 ROG Zephyrus G15: Full specs comparison

The following is a comprehensive comparison of the 2021 ROG Zephyrus G15 and 2020 ROG Zephyrus G15 specifications, including details on CPU, memory, storage, battery life, display quality, and other features.

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2021 ROG Zephyrus G15 image

2021 ROG Zephyrus G15

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2020 ROG Zephyrus G15 image

2020 ROG Zephyrus G15

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2021 ROG Zephyrus G15 Pros

Reasons that 2021 ROG Zephyrus G15 is better than 2020 ROG Zephyrus G15.

Supports larger memory

The 2021 ROG Zephyrus G15 supports a larger memory capacity than the 2020 ROG Zephyrus G15. It supports up to 48GB versus 32GB of system memory on the 2020 ROG Zephyrus G15.

Max system memory size
2021 ROG Zephyrus G15
48 GB
2020 ROG Zephyrus G15
32 GB
About 10% lighter

The 2021 ROG Zephyrus G15 weighed 4.19 pounds, 10% lighter than the 4.62 pounds 2020 ROG Zephyrus G15.

Weight2021 ROG Zephyrus G152020 ROG Zephyrus G15
Pound
4.19 lbs.
4.62 lbs.
Kilogram
1.90 kg
2.10 kg

2020 ROG Zephyrus G15 Pros

We couldn't find any advantages of 2020 ROG Zephyrus G15 over 2021 ROG Zephyrus G15.

Key Similars

Similar characteristics share between 2021 ROG Zephyrus G15 and 2020 ROG Zephyrus G15.

Similar CPU performance

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

Geekbench 5 multi-core score
2021 ROG Zephyrus G15 - AMD Ryzen 9-5900HS
7,162
2020 ROG Zephyrus G15 - AMD Ryzen 9-4900HS
6,956
2020 ROG Zephyrus G15 - AMD Ryzen 7-4800HS
6,597
2021 ROG Zephyrus G15 - AMD Ryzen 7-5800HS
6,454
Uses the same memory type and speed

Both laptops supports the same 3200MHz DDR4 RAM.

Memory type and speed
2021 ROG Zephyrus G15 - DDR4
3,200 MHz
2020 ROG Zephyrus G15 - DDR4
3,200 MHz

Prices

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

2021 ROG Zephyrus G15 Price
ASUS - ROG Zephyrus 15.6" QHD Gaming Laptop - AMD Ryzen 9 - 16GB Memory - NVIDIA GeForce RTX 3070 - 1TB SSD - Eclipse Grey - Eclipse Grey
 ASUS - ROG Zephyrus 15.6" QHD Gaming Laptop - AMD Ryzen 9 - 16GB Memory - NVIDIA GeForce RTX 3070 - 1TB SSD - Eclipse Grey - Eclipse Grey
By ASUS
$1,559.83
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ASUS ROG Zephyrus G15 15.6" 240Hz QHD Gaming Laptop, AMD Ryzen 9 6900HS, GeForce RTX 3080 8GB GDDR6, 40GB DDR5, 4TB PCIe SSD, Backlit Keyboard, WiFi 6E, Win 11 Pro, Gray, 128GB Hotface Extension Set
 ASUS ROG Zephyrus G15 15.6" 240Hz QHD Gaming Laptop, AMD Ryzen 9 6900HS, GeForce RTX 3080 8GB GDDR6, 40GB DDR5, 4TB PCIe SSD, Backlit Keyboard, WiFi 6E, Win 11 Pro, Gray, 128GB Hotface Extension Set
By ASUS
$2,049.00
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ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6” 300Hz IPS Type FHD Display, NVIDIA GeForce RTX 3070, AMD Ryzen R9-5900HX, 16GB DDR4, 1TB PCIe NVMe SSD, RGB Keyboard, Windows 10, G513QR-ES96
 ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6” 300Hz IPS Type FHD Display, NVIDIA GeForce RTX 3070, AMD Ryzen R9-5900HX, 16GB DDR4, 1TB PCIe NVMe SSD, RGB Keyboard, Windows 10, G513QR-ES96
By ASUS
$1,989.95
See at Amazon
ROG Zephyrus G15 5900HS Price
ASUS ROG Zephyrus G15 15.6" 165Hz QHD (2560x1440) Slim Gaming Laptop, 8 Cores AMD Ryzen 9 5900HS, GeForce RTX 3060, 100% DCI-P3 Pantone, RGB Backlit KB, Wi-Fi 6 (40GB RAM | 2TB PCIe SSD)
 ASUS ROG Zephyrus G15 15.6" 165Hz QHD (2560x1440) Slim Gaming Laptop, 8 Cores AMD Ryzen 9 5900HS, GeForce RTX 3060, 100% DCI-P3 Pantone, RGB Backlit KB, Wi-Fi 6 (40GB RAM | 2TB PCIe SSD)
By ASUS
$1,409.90
See at Amazon
ASUS ROG Zephyrus G15 Slim Flagship Gaming Laptop, 15.6" 165Hz QHD (2560x1440) 100% DCI-P3 Pantone, AMD Ryzen 9 5900HS 8 Cores, GeForce RTX 3060, RGB Backlit KB, Wi-Fi 6 (40GB RAM | 2TB PCIe SSD)
 ASUS ROG Zephyrus G15 Slim Flagship Gaming Laptop, 15.6" 165Hz QHD (2560x1440) 100% DCI-P3 Pantone, AMD Ryzen 9 5900HS 8 Cores, GeForce RTX 3060, RGB Backlit KB, Wi-Fi 6 (40GB RAM | 2TB PCIe SSD)
By ASUS
$1,419.16
See at Amazon
ASUS ROG Zephyrus G14 Alan Walker SE Gaming Laptop | 14" WQHD 120Hz | AMD 8-Core Ryzen 9 5900HS (>i7-10370H) | 24GB DDR4 1TB SSD | GeForce RTX3050Ti 4GB | Backlit USB-C Win10Pro + HDMI Cable
 ASUS ROG Zephyrus G14 Alan Walker SE Gaming Laptop | 14" WQHD 120Hz | AMD 8-Core Ryzen 9 5900HS (>i7-10370H) | 24GB DDR4 1TB SSD | GeForce RTX3050Ti 4GB | Backlit USB-C Win10Pro + HDMI Cable
By ASUS
$999.00
See at Amazon

Specs Comparison

Availability

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Released20212020
Applicable Models
  • 2021 ROG Zephyrus G15
  • ROG Zephyrus G15 (2021)
  • ROG Zephyrus G15 GA503
  • ROG Zephyrus G15 GA503QC
  • ROG Zephyrus G15 GA503QE
  • ROG Zephyrus G15 GA503QR
  • 2020 ROG Zephyrus G15
  • ROG Zephyrus G15 (2020)
  • ROG Zephyrus G15 GA502
  • ROG Zephyrus G15 GA502IV
  • ROG Zephyrus G15 GA502IU
  • ROG Zephyrus G15 GA502DU
Generations

Exterior

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Dimensions13.98” x 9.57” x 0.78” (355 x 243 x 19.9 mm)
  • Width: 36.0cm (14.17”)
  • Depth: 25.2cm (9.92”)
  • Height: 1.99cm (0.78”)
Weight4.19 lbs (1.90 kg)2.1kg
Colors
Eclipse Gray Moonlight White
Black
Keyboard and Trackpad
  • Full-size backlit keyboard
    1.7 mm key travel 20M key press lifetime N-Key Rollover
  • Hotkeys 
    Volume down volume up mute Armoury Crate
  • Touchpad
    20% larger 40% faster lower latency
  • Backlit chicklet keyboard
  • Hotkeys: Volume up / Volume down / Microphone mute / ROG Armoury Crate
  • N key rollover

Display

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Size15.6 Inches15.6 Inches
Info
  • 15.6” WQHD 165Hz
    16:9 2560 x 1440 165Hz 3ms 100% DCI-P3 Non-touch IPS Level Anti-Glare FreeSync Pantone Validated
  • 15.6” FHD 144Hz
    16:9 1920 x 1080 360Hz 3ms 62.5% sRGB 47.34% Adobe RGB Non-touch IPS Level Anti-Glare FreeSync
  • 15.6-inch Non-glare Full HD (1920 x 1080) IPS-level panel, 240Hz, 3ms, 100% sRGB, Pantone® Validated, adaptive sync
  • 15.6-inch Non-glare Full HD (1920 x 1080) IPS-level panel, 144Hz, adaptive sync

Ports

2021 ROG Zephyrus G152020 ROG Zephyrus G15
2021 ROG Zephyrus G15 Ports
Image Source: ASUS
Left (7)
  • 2 x USB-C
    USB 3.2 Gen 2 (10 Gbps), DisplayPort 1.4, Power Delivery 3.0
  • 1 x USB-A
    USB 3.2 Gen 2 (10 Gbps)
  • 1 x HDMI
    v2.0b
  • 1 x RJ-45
    1 Gbps
  • 1 x headphone jack
    Headphone/Microphone
  • 1 x power port
Right (3)
  • 1 x USB-A
    USB 3.2 Gen 2 (10 Gbps)
  • 1 x microSD card slot
    up to 312 MB/s transfer speed
  • 1 x lock slot
2020 ROG Zephyrus G15 Ports
Image Source: ASUS
  • 1 x USB 3.2 Gen 2 Type-C
    with DisplayPort™ 1.4 and Power Delivery.
  • 3 x USB 3.2 Gen 1 Type-A
  • 1 x HDMI 2.0b
  • 1 x 3.5mm headphone and microphone combo jack
  • 1 x Kensington lock
  • 1 x RJ-45 jack

Internal Specs

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Processor
  1. AMD Ryzen™ 7 5800HS
    8 cores, 16 threads, 2.80 → 4.40 GHz, 4MB L2 Cache, 16MB L3 Cache, 35W
  2. AMD Ryzen™ 9 5900HS
    8 cores, 16 threads, 3.00 → 4.60 GHz, 4MB L2 Cache, 16MB L3 Cache, 35W
  1. AMD Ryzen™ 7 4800HS
    8 cores, 16 threads, 2.90 → 4.20 GHz, 4MB L2 Cache, 8MB L3 Cache, 35W
  2. AMD Ryzen™ 9 4900HS
    8 cores, 16 threads, 3.30 → 4.40 GHz, 4MB L2 Cache, 8MB L3 Cache, 35W
Integrated Graphics
  1. AMD Ryzen™ 7 5800HS
    AMD Radeon™ Graphics
    8 Graphics Cores, 2000 MHz
  2. AMD Ryzen™ 9 5900HS
    AMD Radeon™ Graphics
    8 Graphics Cores, 2100 MHz
  1. AMD Ryzen™ 7 4800HS
    AMD Radeon™ Graphics
    7 Graphics Cores, 1600 MHz
  2. AMD Ryzen™ 9 4900HS
    AMD Radeon™ Graphics
    8 Graphics Cores, 1750 MHz
Memory
16GB 32GB 48GB
Dual-Channel DDR4 3200MHz Memory.
1 x 16GB Onboard Memory and 1 x SODIMM slot
Up to 32GB DDR4 3200MHz SDRAM
Discrete Graphics
  • NVIDIA® GeForce RTX™ 3060
    6GB GDDR6 VRAM, with ROG Boost up to 1525MHz at 80W (95W with Dynamic Boost).
  • NVIDIA® GeForce RTX™ 3070
    8GB GDDR6 VRAM, with ROG Boost up to 1390MHz at 80W (100W with Dynamic Boost).
  • NVIDIA® GeForce RTX™ 3080
    8GB GDDR6 VRAM, with ROG Boost up to 1345MHz at 80W (100W with Dynamic Boost).
ROG Zephyrus G15 GA502IV
  • NVIDIA® GeForce RTX™ 2060
    6GB GDDR6 VRAM (Boost Clock: 1285MHz, 65W).
ROG Zephyrus G15 GA502IU
  • NVIDIA® GeForce® GTX 1660 Ti
    6GB GDDR6 VRAM (Boost Clock: 1435MHz, 60W).
Storage
512GB 1TB 2TB
M.2 NVMe PCIe 3.0.
2 x M.2 SSD slots, supports RAID-0.
512GB 1TB
M.2 NVMe PCIe 3.0

Connectivity

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Wi-FiIntel® Wi-Fi 6 with Gig+ performance (802.11ax)Intel® Wi-Fi 6 with Gig+ performance (802.11ax)
BluetoothBluetooth 5.0Bluetooth 5.0
Ethernet Gigabit LAN
Speed: 10/100/1000 Mbps.
  • Gigabit LAN
    Speed: 10/100/1000 Mbps.

Battery

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Size90 Wh (4-cell Lithium-ion)76 Wh Li-Polymer
Power Supply
  • 200W
      ø6.0 mm power adapter.
  • 100W
      USB-C power adapter.
180W power adaptor
Support Type-C PD 3.0 up to 65W.

Software

2021 ROG Zephyrus G152020 ROG Zephyrus G15
OS
  • Windows 10 Home
  • Windows 10 Pro
  • Windows 10 Home
  • Windows 10 Pro
Built-in Apps
Armoury Crate
Armoury Crate GameFirst VI GameVisual Sonic Studio III

Camera & Audio

2021 ROG Zephyrus G152020 ROG Zephyrus G15
CameraNo Built-in camera.
  • No Built-in camera.
  • Support external ROG GC21 camera support 1080p@60Hz.
Audio
  • 4 x 2W woofer with Smart Amp Technology.
  • 2 x 2W tweeter.
  • Supports Dolby Atmos.
  • 3D array microphone.
  • Two-Way AI Noise Cancelation
  • 2 speakers with Smart AMP technology
  • Array Microphones

Misc

2021 ROG Zephyrus G152020 ROG Zephyrus G15
Security
  • One-Touch Login
    Fingerprint on the power button.
  • Kensington Lock Slot
-
In the box
  • FHD 1080P@60FPS external camera
    optional.
  • ROG Backpack
    optional.
  • ROG Delta headset
    optional.
  • ROG Chakram Core mouse P511
    optional.
  • ROG Impact Gaming Mouse
    optional.
  • TYPE-C, 100W AC Adapter
    Output: 20V DC, 5A, 100W, Input: 100~240V AC 50/60Hz universal (optional)
-

Key Features

2021 ROG Zephyrus G152020 ROG Zephyrus G15
At Glance
Released in Early
2021
16:9
15.6”
1440p 165Hz
Weight
4.19 lb
1.90 kg
Up to
AMD Ryzen 9-5900HS
8C/16T, 3.00 → 4.60 GHz
Geekbench 5
1,356
Single Core
Geekbench 5
7,162
Multi-Core
With integrated
AMD Radeon™ Graphics
8 Graphics Cores, 2100 MHz
Upgradable up to
48GB
3200 MHz DDR4
2021 ROG Zephyrus G15 Ports
Nvidia GeForce
RTX 3080
8GB GDDR6 80W TGP
Released in
2020
16:9
15.6”
1080p 240Hz
Weight
4.62 lb
2.10 kg
Up to
AMD Ryzen 9-4900HS
8C/16T, 3.30 → 4.40 GHz
Geekbench 5
1,080
Single Core
Geekbench 5
6,956
Multi-Core
With integrated
AMD Radeon™ Graphics
8 Graphics Cores, 1750 MHz
Up to
32GB
3200 MHz DDR4
2020 ROG Zephyrus G15 Ports
Nvidia GeForce
RTX 2060
6GB GDDR6

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