Lenovo Legion Slim 7 (15”, AMD, 2020) vs. 2021 ROG Zephyrus G15: Full specs comparison

We have comprehensively compared the specifications for the Lenovo Legion Slim 7 (15”, AMD, 2020) and 2021 ROG Zephyrus G15 models. The report includes detailed information regarding both models' CPU, memory, storage, battery life, display quality, and other features.

Lenovo Legion Slim 7 (15”, AMD, 2020) Pros

We couldn't find any advantages of Lenovo Legion Slim 7 (15”, AMD, 2020) over 2021 ROG Zephyrus G15.

2021 ROG Zephyrus G15 Pros

Reasons that 2021 ROG Zephyrus G15 is better than Lenovo Legion Slim 7 (15”, AMD, 2020).

Slightly faster CPU performance

AMD Ryzen 9-5900HS inside 2021 ROG Zephyrus G15 has a 5% better multi-core CPU performance score than the AMD Ryzen 9-4900H inside Lenovo Legion Slim 7 (15”, AMD, 2020).

Geekbench 5 multi-core score
2021 ROG Zephyrus G15 - AMD Ryzen 9-5900HS
7,162
Lenovo Legion Slim 7 (15”, AMD, 2020) - AMD Ryzen 9-4900H
6,806
2021 ROG Zephyrus G15 - AMD Ryzen 7-5800HS
6,454
Lenovo Legion Slim 7 (15”, AMD, 2020) - AMD Ryzen 7-4800H
6,440
Lenovo Legion Slim 7 (15”, AMD, 2020) - AMD Ryzen 5-4600H
4,908
Supports larger memory

The 2021 ROG Zephyrus G15 supports a larger memory capacity than the Lenovo Legion Slim 7 (15”, AMD, 2020). It supports up to 48GB versus 32GB of system memory on the Lenovo Legion Slim 7 (15”, AMD, 2020).

Max system memory size
2021 ROG Zephyrus G15
48 GB
Lenovo Legion Slim 7 (15”, AMD, 2020)
32 GB

Key Similars

Similar characteristics share between Lenovo Legion Slim 7 (15”, AMD, 2020) and 2021 ROG Zephyrus G15.

Uses the same memory type and speed

Both laptops supports the same 3200MHz DDR4 RAM.

Memory type and speed
Lenovo Legion Slim 7 (15”, AMD, 2020) - DDR4
3,200 MHz
2021 ROG Zephyrus G15 - DDR4
3,200 MHz
Upgradable memory

Both laptops come with available RAM slots that allow you to replace or upgrade when needed.

MemoryLenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Slots
x1
x1
TypeDDR4DDR4

Prices

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

Lenovo Legion Slim 7 (15”, AMD, 2020) Price
Lenovo - Legion Slim 7 - Gaming Laptop - AMD Ryzen 7 5800H - 16GB DDR4 RAM - 2 x 1TB NVMe TLC SSD - NVIDIA GeForce RTX 3060 Max-Q Graphics - 15.6" FHD 165 Hz - Windows
Lenovo - Legion Slim 7 - Gaming Laptop - AMD Ryzen 7 5800H - 16GB DDR4 RAM - 2 x 1TB NVMe TLC SSD - NVIDIA GeForce RTX 3060 Max-Q Graphics - 15.6" FHD 165 Hz - Windows
By Lenovo
$1,849.00
Lenovo Legion Slim 7 16IRH8 16" Laptop AMD Ryzen 7 7840HS GeForce RTX 4060 16GB 1TB SSD W11H (Renewed)
Lenovo Legion Slim 7 16IRH8 16" Laptop AMD Ryzen 7 7840HS GeForce RTX 4060 16GB 1TB SSD W11H (Renewed)
By Lenovo
$1,249.99
Lenovo Legion Slim 5 Gaming Laptop | 16" WQXGA 165Hz 100% sRGB | AMD Zen4 8-core Ryzen 7 7840HS | 32GB DDR5 1TB SSD | GeForce RTX 4060 8GB | RGB Backlit Rapid Charge Win11Pro Grey + HDMI Cable
Lenovo Legion Slim 5 Gaming Laptop | 16" WQXGA 165Hz 100% sRGB | AMD Zen4 8-core Ryzen 7 7840HS | 32GB DDR5 1TB SSD | GeForce RTX 4060 8GB | RGB Backlit Rapid Charge Win11Pro Grey + HDMI Cable
By Lenovo
$1,349.00
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
Asus ROG Zephyrus G15 Gaming Laptop | 15.6" WQHD 165Hz 100% DCI-P3 | AMD 8-Core Ryzen 9 6900HS (>i7-11370H) | 16GB DDR5 512GB+1TB SSD | GeForce RTX 3060 6GB | USB-C Backlit Win11 + HDMI Cable
Asus ROG Zephyrus G15 Gaming Laptop | 15.6" WQHD 165Hz 100% DCI-P3 | AMD 8-Core Ryzen 9 6900HS (>i7-11370H) | 16GB DDR5 512GB+1TB SSD | GeForce RTX 3060 6GB | USB-C Backlit Win11 + HDMI Cable
By Asus
$1,249.00
asus ROG Zephyrus G15 15.6'' 240Hz QHD Gaming Laptop, AMD Ryzen 9 6900HS, GeForce RTX 3080 8GB GDDR6, 40GB DDR5 RAM, 1TB PCIe SSD, Backlit Keyboard, HD Webcam, Win 11 Pro, Gray, 32GB USB Card
asus ROG Zephyrus G15 15.6'' 240Hz QHD Gaming Laptop, AMD Ryzen 9 6900HS, GeForce RTX 3080 8GB GDDR6, 40GB DDR5 RAM, 1TB PCIe SSD, Backlit Keyboard, HD Webcam, Win 11 Pro, Gray, 32GB USB Card
By ASUS
$1,749.00

Availability

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Released20202021
Release DateAnnounced on November 11, 2020-
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
Generations-

Exterior

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Dimensions14.01 x 9.84 x 0.6 - 0.7 inches (356 x 250 x 15.9 - 17.9 mm)13.98” x 9.57” x 0.78” (355 x 243 x 19.9 mm)
WeightStarting at 4.1 lbs (1.86 kg)4.19 lbs (1.90 kg)
Colors
Slate grey
Eclipse Gray Moonlight White
Keyboard and Trackpad
  • 6-row, spill-resistant, multimedia Fn keys, numeric keypad.
  • LED backlight.
  • Buttonless glass surface multi-touch touchpad supports Precision TouchPad (PTP).
  • 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

Display

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Size15.6 Inches15.6 Inches
Info
  • 15.6" FHD 60Hz
    1920 x 1080 IPS 60 Hz 100% sRGB Dolby Vision® Supported 300 nits
  • 15.6" FHD 144Hz 
    1920 x 1080 IPS 144 Hz Up to 3 ms with OD Response Time 100% sRGB Dolby Vision® Supported 300 nits
  • 15.6" UHD 60Hz
    3840 x 2160 IPS 60 Hz 100% Adobe RGB VESA DisplayHDR 400 Certified Dolby Vision® Supported 500 nits
  • 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

Ports

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
  • 1 x USB-C 3.2 Gen 2
    Supports DisplayPort™ 1.4b, and Power Delivery 100W.
  • 1 x USB-A 3.2 Gen 2
  • 1 x USB-A 3.2 Gen 2 (Always On)
  • 1 x 4-in-1 Full-size SD Card Reader
  • 1 x Audio jack
  • 1 x Power adapter
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

Internal Specs

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Processor
  1. AMD Ryzen™ 5 4600H
    6 cores, 12 threads, 3.00 → 4.00 GHz, 3MB L2 Cache, 8MB L3 Cache, 45W
  2. AMD Ryzen™ 7 4800H
    8 cores, 16 threads, 2.90 → 4.20 GHz, 4MB L2 Cache, 8MB L3 Cache, 45W
  3. AMD Ryzen™ 9 4900H
    8 cores, 16 threads, 3.30 → 4.40 GHz, 4MB L2 Cache, 8MB L3 Cache, 45W
  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
Integrated Graphics
  1. AMD Ryzen™ 5 4600H
    AMD Radeon™ Graphics
    6 Graphics Cores, 1500 MHz
  2. AMD Ryzen™ 7 4800H
    AMD Radeon™ Graphics
    7 Graphics Cores, 1600 MHz
  3. AMD Ryzen™ 9 4900H
    AMD Radeon™ Graphics
    8 Graphics Cores, 1750 MHz
  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
Memory
8GB 16GB 32GB
3200 MHz DDR4 Memory
  • 1 x Onboard Memory
  • 1 x SO-DIMM DDR4 Slot
16GB 32GB 48GB
Dual-Channel DDR4 3200MHz Memory.
1 x 16GB Onboard Memory and 1 x SODIMM slot
Discrete Graphics
  • NVIDIA® GeForce® GTX 1650 Ti
    4GB GDDR6
  • NVIDIA® GeForce® GTX 1660 Ti
    Max-Q Design, 6GB GDDR6
  • NVIDIA® GeForce RTX™ 2060
    Max-Q Design, 6GB GDDR6
  • 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).
Storage
512 GB 1TB 2TB
M.2 2280 SSD
  • 2 x PCIe NVMe, PCIe 3.0 x4 slots
512GB 1TB 2TB
M.2 NVMe PCIe 3.0.
2 x M.2 SSD slots, supports RAID-0.

Connectivity

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Wi-FiKiller Wi-Fi 6 AX1650, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1, M.2 CardIntel® Wi-Fi 6 with Gig+ performance (802.11ax)
BluetoothBluetooth 5.1Bluetooth 5.0
Ethernet- Gigabit LAN
Speed: 10/100/1000 Mbps.

Battery

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Size71 WHr (Integrated 3-Cell Li-Polymer battery)90 Wh (4-cell Lithium-ion)
Battery LifeUp to 4.9 hours
Tested with MobileMark® 2018
-
Power Supply
170W 230W
Slim tip AC adapter.
  • 200W
      ø6.0 mm power adapter.
  • 100W
      USB-C power adapter.

Software

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
OS
  • Windows 10 Home 64
  • Windows 10 Pro 64
  • FreeDOS
  • No operating system
  • Windows 10 Home
  • Windows 10 Pro
Built-in Apps
Lenovo Vantage Dolby Atmos® Speaker System Dolby Vision® Xrite-Pantone Color Management McAfee® Antivirus
Armoury Crate

Camera & Audio

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
CameraTop-placed Built-in HD Webcam (720p) with Privacy ShutterNo Built-in camera.
Audio
  • 2 x 2W Dolby Atmos® Speaker System for Gaming
  • Dual array microphone
  • 4 x 2W woofer with Smart Amp Technology.
  • 2 x 2W tweeter.
  • Supports Dolby Atmos.
  • 3D array microphone.
  • Two-Way AI Noise Cancelation

Misc

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
Sensors
  • Fingerprint Reader Combined with Power Button
-
Security
  • Fingerprint Reader
    • Touch style fingerprint reader on the power button
  • BIOS Security
    • Power-on password
    • Supervisor password
  • Other Security
    • Camera privacy shutter
  • One-Touch Login
    Fingerprint on the power button.
  • Kensington Lock Slot
In the box
  • Lenovo Legion Slim 7 15”
  • AC adapter
  • Internal Battery
  • Quick Start Guide
  • 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)
Warranty2-year (1-yr battery) depot service-

Key Features

Lenovo Legion Slim 7 (15”, AMD, 2020)2021 ROG Zephyrus G15
At Glance
Released in
2020
16:9 4K UHD
15.6”
2160p 60Hz
Weight
4.1 lb
1.86 kg
Up to
AMD Ryzen 9-4900H
8C/16T, 3.30 → 4.40 GHz
Geekbench 5
1,137
Single Core
Geekbench 5
6,806
Multi-Core
With integrated
AMD Radeon™ Graphics
8 Graphics Cores, 1750 MHz
Upgradable up to
32GB
3200 MHz DDR4
NVIDIA GeForce
RTX 2060
6GB GDDR6 with Max-Q
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

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