Lenovo Legion Slim 7i (15”, Intel, 2020) vs. Alienware M15 R5: Which is better?
Here is a side by side comparison between Lenovo Legion Slim 7i (15”, Intel, 2020) and Alienware M15 R5 specs including CPU, RAM, storage, battery, display, and more.
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Lenovo Legion Slim 7i (15”, Intel, 2020) Pros
Reasons that Lenovo Legion Slim 7i (15”, Intel, 2020) is better than Alienware M15 R5.
Lenovo Legion Slim 7i (15”, Intel, 2020) weighed 4.1 pounds, 24% lighter than the 5.34 pounds Alienware M15 R5.
Weight | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
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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 7i (15”, Intel, 2020).
AMD Ryzen 9-5900HX inside Alienware M15 R5 has a 9% better multi-core CPU performance score than the Intel Core i9-10980HK inside Lenovo Legion Slim 7i (15”, Intel, 2020).
Key Similars
Similar characteristics share between Lenovo Legion Slim 7i (15”, Intel, 2020) and Alienware M15 R5.
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 | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
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Slots | x1 | x2 |
Type | DDR4 | DDR4 |
Prices
Here are the latest price updates and offers for both devices.
Availability | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Released | 2020 | 2021 |
Release Date | Announced on December 04, 2020 | Announced on April 20, 2021 |
Generations | - |
Exterior | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Dimensions | 14.01 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) |
Weight | Starting 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 |
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Display | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Size | 15.6 Inches | 15.6 Inches |
Info |
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Ports | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
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Internal Specs | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Processor |
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Integrated Graphics |
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Memory | 8GB 16GB 32GB 2933 MHz or 3200 MHz DDR4 Memory
| 8 GB 16 GB 32 GB 3200MHz Dual-channel DDR4 SDRAM.2 x SO-DIMM slots. |
Discrete Graphics |
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Storage | 512 GB 1TB 2TB M.2 2280 SSD
| 2 x M.2 2230/2280 slots (Up to 2TB each) |
Connectivity | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Wi-Fi | Killer Wi-Fi 6 AX1650, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1, M.2 Card | 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 |
Bluetooth | Bluetooth 5.1 | Bluetooth 5.2 |
Ethernet | - | Gigabit Ethernet Controller Transfer rate: 10/100/1000/2500 Mbps |
Battery | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Size | 71 WHr (Integrated 3-Cell Li-Polymer battery) Supports Rapid Charge Boost (get 2 hours of runtime with a 15-minute charge) |
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Battery Life | Up to 5.8 hours Tested with MobileMark® 2018 | - |
Power Supply | 170W 230W Slim tip AC adapter. | 180W 240W power adapter. |
Software | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
OS |
| Windows 10 Home Windows 10 Pro Upgradable to Windows 11 |
Built-in Apps | Lenovo Vantage Dolby Atmos® Speaker System Dolby Vision® McAfee® Antivirus |
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Camera & Audio | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Camera | Top-placed Built-in HD Webcam (720p) with Privacy Shutter | Front-facing camera Alienware HD (1280x720 resolution) camera. |
Audio |
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Misc | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
Sensors |
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Security |
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In the box |
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Warranty | 1-year depot service | - |
Key Features | Lenovo Legion Slim 7i (15”, Intel, 2020) | Alienware M15 R5 |
At Glance |
Comparison Summary
Lenovo has released the Legion Slim 7i (15”, Intel, 2020), a 15.6-inch machine, in 2020. It is powered by up to an octa-core Intel Core i9-10980HK with a boost clock speed up to 5.30 GHz. The laptop has a dedicated GPU option up to NVIDIA GeForce RTX 2060 with 6GB GDDR6 with Max-Q.
On the other hand, we have the 15.6-inch Alienware M15 R5 was introduced by Dell about a year later in early-2021. It comes with up to an octa-core AMD Ryzen 9-5900HX with a boost clock speed up to 4.60 GHz. It has a dedicated GPU option up to Nvidia GeForce RTX 3070 with 8GB GDDR6.
Geekbench 5 Single Core
Geekbench 5 Multi Core
Both Lenovo Legion Slim 7i (15”, Intel, 2020) and Alienware M15 R5 have the same 15.6-inch display size. In addition, The Lenovo Legion Slim 7i (15”, Intel, 2020) weighs 4.1 lbs. about 30% lighter than the 5.34 lbs. Alienware M15 R5. Moreover, measured at 14.01” x 9.84” x 0.7”, the Lenovo Legion Slim 7i (15”, Intel, 2020) is considerably more portable than the Alienware M15 R5 at 14.02” x 10.73” x 0.76”.
Moving over to upgradability, Lenovo claims that the Lenovo Legion Slim 7i (15”, Intel, 2020) supports up to 32GB 3200 MHz DDR4 memory that you can upgrade with 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 Alienware M15 R5, it supports up to 32GB 3200 MHz DDR4 memory that you can upgrade with two 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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