Alienware M15 R5 vs. Lenovo Legion Slim 7 (15”, AMD, 2020): Which is better?
Here is a side by side comparison between Alienware M15 R5 and Lenovo Legion Slim 7 (15”, AMD, 2020) specs including CPU, RAM, storage, battery, display, and more.
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Alienware M15 R5 Pros
Reasons that Alienware M15 R5 is better than Lenovo Legion Slim 7 (15”, AMD, 2020).
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).
Lenovo Legion Slim 7 (15”, AMD, 2020) Pros
Reasons that Lenovo Legion Slim 7 (15”, AMD, 2020) is better than Alienware M15 R5.
Lenovo Legion Slim 7 (15”, AMD, 2020) weighed 4.1 pounds, 24% lighter than the 5.34 pounds Alienware M15 R5.
Weight | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
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Pound | 5.34 lbs. | 4.1 lbs. |
Kilogram | 2.42 kg | 1.86 kg |
Key Similars
Similar characteristics share between Alienware M15 R5 and Lenovo Legion Slim 7 (15”, AMD, 2020).
Both laptops supports up to 32GB of system memory.
Both laptops supports the same 3200MHz DDR4 RAM.
Both laptops come with available RAM slots that allow you to replace or upgrade when needed.
Memory | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
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Slots | x2 | x0,1 |
Type | DDR4 | DDR4 |
Prices
Here are the latest price updates and offers for both devices.
Availability | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Released | 2021 | 2020 |
Release Date | Announced on April 20, 2021 | Announced on November 11, 2020 |
Generations | - |
Exterior | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Dimensions | 14.02” x 10.73” x 0.47 - 0.76” (356.20 x 272.50 x 12 - 19.25 mm) | 14.01 x 9.84 x 0.6 - 0.7 inches (356 x 250 x 15.9 - 17.9 mm) |
Weight | 5.34 - 5.93 lbs (2.42 - 2.69 kg) | Starting at 4.1 lbs (1.86 kg) |
Colors | Dark Side of the Moon with High Endurance Clear Coat and Silky Smooth Finish | Slate grey |
Keyboard and Trackpad |
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Display | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Size | 15.6 Inches | 15.6 Inches |
Info |
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Ports | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
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Internal Specs | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Processor |
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Integrated Graphics |
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Memory | 8 GB 16 GB 32 GB 3200MHz Dual-channel DDR4 SDRAM.2 x SO-DIMM slots. | 8GB 16GB 32GB 3200 MHz DDR4 Memory
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Discrete Graphics |
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Storage | 2 x M.2 2230/2280 slots (Up to 2TB each) | 512 GB 1TB 2TB M.2 2280 SSD
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Connectivity | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Wi-Fi | Rivet 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 | Killer Wi-Fi 6 AX1650, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1, M.2 Card |
Bluetooth | Bluetooth 5.2 | Bluetooth 5.1 |
Ethernet | Gigabit Ethernet Controller Transfer rate: 10/100/1000/2500 Mbps | - |
Battery | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Size |
| 71 WHr (Integrated 3-Cell Li-Polymer battery) |
Battery Life | - | Up to 4.9 hours Tested with MobileMark® 2018 |
Power Supply | 180W 240W power adapter. | 170W 230W Slim tip AC adapter. |
Software | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
OS | Windows 10 Home Windows 10 Pro Upgradable to Windows 11 |
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Built-in Apps |
| Lenovo Vantage Dolby Atmos® Speaker System Dolby Vision® Xrite-Pantone Color Management McAfee® Antivirus |
Camera & Audio | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Camera | Front-facing camera Alienware HD (1280x720 resolution) camera. | Top-placed Built-in HD Webcam (720p) with Privacy Shutter |
Audio |
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Misc | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
Sensors | - |
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Security | - |
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In the box | - |
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Warranty | - | 2-year (1-yr battery) depot service |
Key Features | Alienware M15 R5 | Lenovo Legion Slim 7 (15”, AMD, 2020) |
At Glance |
Comparison Summary
Dell has released the Alienware M15 R5, a 15.6-inch machine, in early-2021. It is powered by up to an octa-core AMD Ryzen 9-5900HX with a boost clock speed up to 4.60 GHz. The laptop has a dedicated GPU option up to Nvidia GeForce RTX 3070 with 8GB GDDR6.
On the other hand, we have the 15.6-inch Legion Slim 7 (15”, AMD, 2020) was introduced by Lenovo about a year earlier in 2020. It comes with up to an octa-core AMD Ryzen 9-4900H with a boost clock speed up to 4.40 GHz. It has a dedicated GPU option up to NVIDIA GeForce RTX 2060 with 6GB GDDR6 with Max-Q.
Geekbench 5 Single Core
Geekbench 5 Multi Core
Both Alienware M15 R5 and Lenovo Legion Slim 7 (15”, AMD, 2020) have the same 15.6-inch display size. In addition, the Alienware M15 R5 weighs 5.34 lbs. about 30% heavier than the 4.1 lbs. Lenovo Legion Slim 7 (15”, AMD, 2020). Moreover, measured at 14.02” x 10.73” x 0.76”, the Alienware M15 R5 is considerably bulkier than the Lenovo Legion Slim 7 (15”, AMD, 2020) at 14.01” x 9.84” x 0.7”.
Moving over to upgradability, Dell claims that the Alienware M15 R5 supports up to 32GB 3200 MHz DDR4 memory that you can upgrade with two memory module slots on the motherboard. It also comes with two M.2 slots that users can easily upgrade and install an additional SSD to expand the storage on the device.
For Lenovo Legion Slim 7 (15”, AMD, 2020), it supports up to 32GB 3200 MHz DDR4 memory that you can upgrade with memory module slots on the motherboard. It also has two M.2 slots that users can easily swap or add an extra SSD to get extra space when needed.
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