Lenovo Legion Slim 7 (15”, AMD, 2020) vs. Alienware M15 R5: Full specs comparison

The following is a comprehensive comparison of the Lenovo Legion Slim 7 (15”, AMD, 2020) and Alienware M15 R5 specifications, including details on CPU, memory, storage, battery life, display quality, and other features.

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

Reasons that Lenovo Legion Slim 7 (15”, AMD, 2020) is better than Alienware M15 R5.

About 24% lighter

Lenovo Legion Slim 7 (15”, AMD, 2020) weighed 4.1 pounds, 24% lighter than the 5.34 pounds Alienware M15 R5.

WeightLenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
Pound
4.1 lbs.
5.34 lbs.
Kilogram
1.86 kg
2.42 kg

Alienware M15 R5 Pros

Reasons that Alienware M15 R5 is better than Lenovo Legion Slim 7 (15”, AMD, 2020).

Slightly faster CPU performance

AMD Ryzen 9-5900HX inside Alienware M15 R5 has a 12% 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
Alienware M15 R5 - AMD Ryzen 9-5900HX
7,663
Alienware M15 R5 - AMD Ryzen 7-5800H
7,098
Lenovo Legion Slim 7 (15”, AMD, 2020) - AMD Ryzen 9-4900H
6,806
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

Key Similars

Similar characteristics share between Lenovo Legion Slim 7 (15”, AMD, 2020) and Alienware M15 R5.

Supports the same maximum memory size of up to 32GB

Both laptops supports up to 32GB of system memory.

Max system memory size
Lenovo Legion Slim 7 (15”, AMD, 2020)
32 GB
Alienware M15 R5
32 GB
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
Alienware M15 R5 - 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)Alienware M15 R5
Slots
x1
x2
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 5 Gaming Laptop, 16" WQXGA(2560 x 1600) Display, AMD Ryzen 7 7840HS, 32GB RAM 2TB SSD Storage, NVIDIA GeForce RTX 4060, Wi-Fi 6E, Windows11, Storm Grey, NoCo Bundle
Lenovo Legion Slim 5 Gaming Laptop, 16" WQXGA(2560 x 1600) Display, AMD Ryzen 7 7840HS, 32GB RAM 2TB SSD Storage, NVIDIA GeForce RTX 4060, Wi-Fi 6E, Windows11, Storm Grey, NoCo Bundle
By Lenovo
$1,469.00
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
Alienware M15 R5 AMD Ryzen Price
Alienware M17R5 Gaming Laptop - 17.3-inch FHD 480Hz Display, AMD Ryzen 9-6900HX, 32GB DDR5 RAM, 1TB SSD, NVIDIA GeForce RTX 3080 GDDR6, Windows 11 Home, 1 Year Support - Dark Side of the Moon, Black
Alienware M17R5 Gaming Laptop - 17.3-inch FHD 480Hz Display, AMD Ryzen 9-6900HX, 32GB DDR5 RAM, 1TB SSD, NVIDIA GeForce RTX 3080 GDDR6, Windows 11 Home, 1 Year Support - Dark Side of the Moon, Black
By Alienware
$1,979.97
Dell Alienware m15 R5 Ryzen Edition Gaming Laptop (2021) | 15.6" 360Hz FHD | Core Ryzen 7-512GB SSD Hard Drive - 16GB RAM - RTX 3070 | 8 Cores @ 4.4 GHz - 8GB GDDR6 Win 11 Home (Renewed)
Dell Alienware m15 R5 Ryzen Edition Gaming Laptop (2021) | 15.6" 360Hz FHD | Core Ryzen 7-512GB SSD Hard Drive - 16GB RAM - RTX 3070 | 8 Cores @ 4.4 GHz - 8GB GDDR6 Win 11 Home (Renewed)
By Dell
$1,466.07
Dell Alienware m17 Ryzen Edition R5 Gaming Laptop (2022) | 17.3" FHD | Core Ryzen 9 - 1TB SSD - 16GB RAM - RTX 3060 | Cores - 12GB GDDR6 Win 11 Home (Renewed)
Dell Alienware m17 Ryzen Edition R5 Gaming Laptop (2022) | 17.3" FHD | Core Ryzen 9 - 1TB SSD - 16GB RAM - RTX 3060 | Cores - 12GB GDDR6 Win 11 Home (Renewed)
By Dell
$1,090.99

Availability

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
Released20202021
Release DateAnnounced on November 11, 2020Announced on April 20, 2021
Generations-

Exterior

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
Dimensions14.01 x 9.84 x 0.6 - 0.7 inches (356 x 250 x 15.9 - 17.9 mm)14.02” x 10.73” x 0.47 - 0.76” (356.20 x 272.50 x 12 - 19.25 mm)
WeightStarting at 4.1 lbs (1.86 kg)5.34 - 5.93 lbs (2.42 - 2.69 kg)
Colors
Slate grey
Dark Side of the Moon with High Endurance Clear Coat and Silky Smooth Finish
Keyboard and Trackpad
  • 6-row, spill-resistant, multimedia Fn keys, numeric keypad.
  • LED backlight.
  • Buttonless glass surface multi-touch touchpad supports Precision TouchPad (PTP).
  • Keyboard
    • Alienware mSeries 4-Zone AlienFX RGB keyboard.
    • RGB per-key backlit Cherry mechanical keyboard.
    • AlienFX lighting
    • Includes anti-ghosting and N-key rollover technology
    • 1.8mm key travel
    • 0.2mm-dish concave key design
  • Touchpad
    • 4.13 x 2.36 in (105 mm x 80 mm) precision touchpad with multi-touch gesture support.

Display

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
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” FHD with 165Hz
    1920 x 1080 141 PPI 9ms response time 300 nits 16:9 100% sRGB color gamut 1000:1 Anti-glare WVA 6W
  • 15.6” FHD with 360Hz
    1920 x 1080 141 PPI 5ms response time 300 nits 16:9 100% sRGB color gamut 1000:1 Anti-glare WVA 8W
  • 15.6” QHD with 240Hz
    2560 x 1440 188 PPI 9ms response time 400 nits 16:9 99% DCI-P3 color gamut 1000:1 Anti-glare WVA 10W

Ports

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
  • 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
Alienware M15 R5 Ports
Image Source: Dell
  • 1 x USB-C 3.2 Gen 2 with DisplayPort
  • 2 x USB-A 3.2 Gen 1 Port
  • 1 x USB-A 3.2 Gen 1 port with PowerShare
  • 1 x RJ-45
  • 1 x HDMI 2.1
    Supports up to 4K@120Hz display out.
  • 1 x Headset port
  • 1 x Power/DC-in Port

Internal Specs

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
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 5800H
    8 cores, 16 threads, 3.20 → 4.40 GHz, 4MB L2 Cache, 16MB L3 Cache, 45W
  2. 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™ 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 5800H
    AMD Radeon™ Graphics
    8 Graphics Cores, 2000 MHz
  2. AMD Ryzen™ 9 5900HX
    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
8 GB 16 GB 32 GB
3200MHz Dual-channel DDR4 SDRAM.
2 x SO-DIMM slots.
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™ 3050 Ti
    4GB GDDR6 VRAM.
  • NVIDIA® GeForce RTX™ 3060
    6GB GDDR6 VRAM.
  • NVIDIA® GeForce RTX™ 3070
    8GB GDDR6 VRAM.
Storage
512 GB 1TB 2TB
M.2 2280 SSD
  • 2 x PCIe NVMe, PCIe 3.0 x4 slots
2 x M.2 2230/2280 slots (Up to 2TB each)

Connectivity

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
Wi-FiKiller Wi-Fi 6 AX1650, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1, M.2 CardRivet Killer Wi-Fi 6 AX1650x
Dual Band 2.4 GHz/5 GHz Up to 2400 Mbps WiFi 6 802.11a/b/g/n/ac/ax
BluetoothBluetooth 5.1Bluetooth 5.2
Ethernet-Gigabit Ethernet Controller
Transfer rate: 10/100/1000/2500 Mbps

Battery

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
Size71 WHr (Integrated 3-Cell Li-Polymer battery)
  • 56 WHr, 3-cell smart lithium-ion battery
  • 86 WHr, 6-cell smart lithium-ion battery
Battery LifeUp to 4.9 hours
Tested with MobileMark® 2018
-
Power Supply
170W 230W
Slim tip AC adapter.
180W 240W
power adapter.

Software

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
OS
  • Windows 10 Home 64
  • Windows 10 Pro 64
  • FreeDOS
  • No operating system
Windows 10 Home Windows 10 Pro
Upgradable to Windows 11
Built-in Apps
Lenovo Vantage Dolby Atmos® Speaker System Dolby Vision® Xrite-Pantone Color Management McAfee® Antivirus
  • Alienware Command Center
    Supports AlienFX lighting, Game
    Library with auto-tune game profile functionality.
  • Alienware Adrenalin
  • Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)

Camera & Audio

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
CameraTop-placed Built-in HD Webcam (720p) with Privacy ShutterFront-facing camera
Alienware HD (1280x720 resolution) camera.
Audio
  • 2 x 2W Dolby Atmos® Speaker System for Gaming
  • Dual array microphone
  • Controller: Realtek ALC3254
    • 7.1 Digital Audio out using HDMI out connection
    • Alienware Sound Center via Alienware Command Center
  • Speakers:
    • 2 x 2W speakers
  • Microphone:
    • Dual-array microphones

Misc

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
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
-
In the box
  • Lenovo Legion Slim 7 15”
  • AC adapter
  • Internal Battery
  • Quick Start Guide
-
Warranty2-year (1-yr battery) depot service-

Key Features

Lenovo Legion Slim 7 (15”, AMD, 2020)Alienware M15 R5
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 QHD
15.6”
1440p 240Hz
Weight
5.34 lb
2.42 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
Alienware M15 R5 Ports
Nvidia GeForce
RTX 3070
8GB GDDR6

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