Home » Laptops » Lenovo » ThinkPad » X12 » Lenovo ThinkPad X12 Detachable Gen 1 » vs. Alienware M15 R5

Lenovo ThinkPad X12 Detachable Gen 1 vs. Alienware M15 R5: Full specs comparison

The following is a comprehensive comparison of the Lenovo ThinkPad X12 Detachable Gen 1 and Alienware M15 R5 specifications, including details on CPU, memory, storage, battery life, display quality, and other features.

Compare With Please enter device name or part of it Lenovo ThinkPad X12 Detachable Gen 1 See at Amazon	Compare With Please enter device name or part of it Alienware M15 R5 See at Amazon See at Dell

Lenovo ThinkPad X12 Detachable Gen 1 Pros

Reasons that Lenovo ThinkPad X12 Detachable Gen 1 is better than Alienware M15 R5.

Lenovo ThinkPad X12 Detachable Gen 1 supports a faster memory speed than the Alienware M15 R5. It supports up to 4267MHz versus 3200MHz of system memory on the Alienware M15 R5.

Memory type and speed

Lenovo ThinkPad X12 Detachable Gen 1 - LPDDR4X

4,267 MHz

Alienware M15 R5 - DDR4

3,200 MHz

Lenovo ThinkPad X12 Detachable Gen 1 weighed 1.85 pounds, 66% lighter than the 5.34 pounds Alienware M15 R5.

Weight	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Pound	1.85 lbs.	5.34 lbs.
Kilogram	0.84 kg	2.42 kg

Alienware M15 R5 Pros

Reasons that Alienware M15 R5 is better than Lenovo ThinkPad X12 Detachable Gen 1.

AMD Ryzen 9-5900HX inside Alienware M15 R5 has a 71% better multi-core CPU performance score than the Intel Core i7-1180G7 inside Lenovo ThinkPad X12 Detachable Gen 1.

Geekbench 5 multi-core score

Alienware M15 R5 - AMD Ryzen 9-5900HX

7,663

Alienware M15 R5 - AMD Ryzen 7-5800H

7,098

Lenovo ThinkPad X12 Detachable Gen 1 - Intel Core i7-1180G7

4,474

Lenovo ThinkPad X12 Detachable Gen 1 - Intel Core i5-1140G7

4,085

Lenovo ThinkPad X12 Detachable Gen 1 - Intel Core i5-1130G7

4,079

Alienware M15 R5 supports a larger memory capacity than the Lenovo ThinkPad X12 Detachable Gen 1. It supports up to 32GB versus 16GB of system memory on the Lenovo ThinkPad X12 Detachable Gen 1.

Max system memory size

Alienware M15 R5

32 GB

Lenovo ThinkPad X12 Detachable Gen 1

16 GB

Alienware M15 R5 comes with two SODIMM slots that allow you to replace or upgrade when needed. On the flip side, you can't upgrade RAM on the Lenovo ThinkPad X12 Detachable Gen 1 since it has onboard memory.

Memory	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Slots	Onboard	x2
Type	LPDDR4X	DDR4

Configurable up to Nvidia GeForce RTX 3070 8GB GDDR6 vs. integrated

Alienware M15 R5 has a 15.6-inch screen size 26% larger than the 12.3-inch Lenovo ThinkPad X12 Detachable Gen 1.

Display size

Alienware M15 R5

15.6-inch

Lenovo ThinkPad X12 Detachable Gen 1

12.3-inch

Prices

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

Lenovo ThinkPad X12 Detachable Gen 1 Price
	Lenovo ThinkPad X13 Yoga Gen 2 13.3" WUXGA 2-in-1 Touchscreen (Intel 4-Core i5-1145G7, 16GB RAM, 512GB SSD) Business Laptop, Thunderbolt 4, Backlit, Fingerprint, 3-Yr Warranty, IST Cable, Win 11 Pro By Lenovo $849.98 $899.98 6% OFF	See at Amazon
	ThinkPad X12 Case By Lenovo $41.63 $46.11 10% OFF	See at Amazon
	Puccy 3 Pack Screen Protector, compatible with Lenovo ThinkPad X12 Detachable Gen 2 12.3" Laptop TPU Film Guard （ Not Tempered Glass Protectors） By Puccy Film for Lenovo ThinkPad X12 Detachable Gen 2 $16.98	See at Amazon
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 By Alienware $1,979.97	See at Amazon
	Newest Alienware m15 R5 15.6" 360Hz 1ms FHD Gaming Laptop, AMD Ryzen 9 5900HX (8 cores), GeForce RTX 3070, 64GB RAM, 2TB PCIe SSD, HDMI, WiFi 6, RGB Keyboard, Win 11 Home, Dark Side of The Moon By Dell $1,775.00	See at Amazon
	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 $1,465.99	See at Amazon

Availability	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Released	2021	2021
Release Date	Announced on January 11, 2021 (CES 2021) Available starting January 2021	Announced on April 20, 2021
Pricing	Starting at $1,149	-
Generations	-	2022 Alienware M15 R7 2021 Alienware M15 R6 2021 Alienware M15 R5 2021 Alienware M15 R4 2020 Alienware M15 R3 2019 Alienware M15 R2 2019 Alienware M15 R1

Exterior	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Dimensions	11.15” x 8.01” x 0.35” (283.3 x 203.5 x 8.8 mm) Tablet Only 11.15” x 8.01” x 0.57” (283.3 x 203.5 x 14.5 mm) With Keyboard	14.02” x 10.73” x 0.47 - 0.76” (356.20 x 272.50 x 12 - 19.25 mm)
Weight	Starting at 1.85 lbs (840 g) Tablet Only Starting at 2.65 lbs (1.2 kg) With Keyboard	5.34 - 5.93 lbs (2.42 - 2.69 kg)
Colors	Black	Dark Side of the Moon with High Endurance Clear Coat and Silky Smooth Finish
Keyboard and Trackpad	Detachable Keyboard: Backlit with white LED lighting keyboard. Trackpad + TrackPoint® pointing device.	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 ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Size	12.3 Inches	15.6 Inches
Info	12.3" FHD+ 1920 x 1280 3:2 IPS Anti-Reflective Anti-Smudge 400 nits Corning Gorilla® Glass 5	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 ThinkPad X12 Detachable Gen 1	Alienware M15 R5
1 x Thunderbolt™ 4 Supports USB 4, Power Delivery, and DisplayPort. 1 x USB-C Supports USB 3.2 Gen 2, Power Delivery, and DisplayPort. 1 x Headphone / mic combo 1 x Optional Nano SIM slot 1 x Kensington lock slot	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 ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Processor	11th Gen Intel® Core™ i5-1130G7 4 cores, 8 threads, 1.80 → 4.00 GHz, 8MB SmartCache, 15W 11th Gen Intel® Core™ i5-1140G7 with vPro™ 4 cores, 8 threads, 1.80 → 4.20 GHz, 8MB SmartCache, 15W 11th Gen Intel® Core™ i7-1180G7 with vPro™ 4 cores, 8 threads, 2.20 → 4.60 GHz, 12MB SmartCache, 15W	AMD Ryzen™ 7 5800H 8 cores, 16 threads, 3.20 → 4.40 GHz, 4MB L2 Cache, 16MB L3 Cache, 45W AMD Ryzen™ 9 5900HX 8 cores, 16 threads, 3.30 → 4.60 GHz, 4MB L2 Cache, 16MB L3 Cache, 45W
Integrated Graphics	11th Gen Intel® Core™ i5-1130G7 Intel® Iris® Xe Graphics 80 Execution Units, 400 → 1100 MHz 11th Gen Intel® Core™ i5-1140G7 with vPro™ Intel® Iris® Xe Graphics 80 Execution Units, 400 → 1100 MHz 11th Gen Intel® Core™ i7-1180G7 with vPro™ Intel® Iris® Xe Graphics 96 Execution Units, 400 → 1100 MHz	AMD Ryzen™ 7 5800H AMD Radeon™ Graphics 8 Graphics Cores, 2000 MHz AMD Ryzen™ 9 5900HX AMD Radeon™ Graphics 8 Graphics Cores, 2100 MHz
Memory	8GB 16GB 4267 MHz Dual-channel LPDDR4x Memory.	8 GB 16 GB 32 GB 3200MHz Dual-channel DDR4 SDRAM. 2 x SO-DIMM slots.
Discrete Graphics	-	NVIDIA® GeForce RTX™ 3050 Ti 4GB GDDR6 VRAM. NVIDIA® GeForce RTX™ 3060 6GB GDDR6 VRAM. NVIDIA® GeForce RTX™ 3070 8GB GDDR6 VRAM.
Storage	256 GB 512 GB 1 TB PCIe SSD	2 x M.2 2230/2280 slots (Up to 2TB each)

Connectivity	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Wi-Fi	Intel® Wi-Fi 6™ AX201 802.11AX (2 x 2) Up to 2400 Mbps, Dual band 2.4 GHz/5 GHz, 802.11 a/b/g/n/ac/ax.	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
More	Optional WWAN: 4x4 MIMO 4G (LTE CAT9)	-

Battery	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Size	42 Wh	56 WHr, 3-cell smart lithium-ion battery 86 WHr, 6-cell smart lithium-ion battery
Battery Life	Up to 10.18 hours Based on MobileMark® 2018 battery-life benchmark test	-
Power Supply	65 W USB (Type-C) power adapter Supports Rapid Charge.	180W 240W power adapter.

Software	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
OS	Windows 10 Home 64-bit Windows 10 Pro 64-bit	Windows 10 Home Windows 10 Pro Upgradable to Windows 11
Built-in Apps	Lenovo Vantage	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 ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Camera	Front-facing camera with ThinkShutter privacy shutter 720p (1280 x 720 HD) camera. Hybrid Infrared (IR) 8MP rear-facing camera	Front-facing camera Alienware HD (1280x720 resolution) camera.
Audio	Dolby® Premium Dual-array mics	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 ThinkPad X12 Detachable Gen 1	Alienware M15 R5
Inking	Supports Active Pen: Lenovo Precision Pen (optional included) Lenovo Digital Pen	-
Security	Discrete Trusted Platform Module (dTPM) 2.0 Windows Hello & IR camera for facial recognition login The fingerprint reader on the optional keyboard Webcam privacy cover Kensington lock slot	-
In the box	ThinkPad X12 Detachable 65W AC Adapter (Supports Rapid Charge) 4 Cell 42Whr Internal Battery Keyboard (Select Models) Pen (Select Models) Quick Start Guide	-

Key Features	Lenovo ThinkPad X12 Detachable Gen 1	Alienware M15 R5
At Glance	Released in 2021 3:2 FHD+ 12.3” 1280p 60Hz Weight 1.85 lb 0.84 kg Up to Intel Core i7-1180G7 4C/8T, 2.20 → 4.60 GHz Geekbench 5 1,364 Single Core Geekbench 5 4,474 Multi-Core With integrated Intel® Iris® Xe Graphics 96 Execution Units, 400 → 1100 MHz Configurable up to 16GB 4267 MHz LPDDR4X	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 Nvidia GeForce RTX 3070 8GB GDDR6