the rear. Alienware 15 R3 (Discontinued) - 2016 Alienware 15 (2016), Windows 10. 6th / 7th gen Intel CPU, 1080p standard display and Ultra HD 4K display and 120Hz TN+WVA Anti-Glare 400nit NVIDIA G-SYNC Enabled Display also available, as well as a Nvidia GeForce 1000 series with up to 8GB GDDR5. Alienware 15 R4 (Discontinued) - Early 2018 Alienware 15 (2018), Windows 10. Features Tobii eye tracking, Ultra HD Display also available, as well as a Nvidia GeForce 1000 series with up to 8GB GDDR5, 8th / 9th gen Intel CPU (i7 8750H or i9 8950HK) Alienware M15 (Discontinued) - 2018 thin and light gaming laptop. 1080p standard display and Ultra HD 4K display and 144Hz IPS 1080p display also available, as well as a Nvidia GeForce 1000 series with up to a GTX 2070 Max-Q design. Alienware M15 R2 (Discontinued) - 2019 thin and light gaming laptop. 1080p standard display and 60Hz Ultra HD 4K display, 144Hz IPS 1080p, and 240Hz IPS 1080p display also available, as well as a Nvidia GeForce 20 series with up to a RTX 2080 Max-Q, 9th gen Intel CPU. Alienware M15 R3 (Discontinued) - 2020 thin and light gaming laptop. 1080p standard display and 60Hz Ultra HD 4K display, 144Hz IPS 1080p, and 240Hz IPS 1080p display also available, as well as a Nvidia GeForce 20 series with up to a RTX 2080 Super Max-Q, 10th gen Intel CPU. Alienware M15 R4 (Discontinued) - Early 2021 thin and light gaming laptop. standard display and 60Hz display, 144Hz IPS , and 300Hz IPS display also available, as well as a Nvidia GeForce 30 series with up to a RTX 3080 mobile and Intel 10th generation CPU. Features Tobii eye tracking with variant. Alienware M15 R5 (Discontinued) - 2021 thin and light gaming laptop. standard display and 60Hz display, 144Hz IPS , and 300Hz IPS display also available, as well as a Nvidia GeForce 30 series with up to a RTX 3080 mobile and AMD Ryzen 5th generation CPU. Features Tobii eye tracking with variant. Alienware M15 R6 (Discontinued) - 2021 thin and light gaming laptop. standard display and 60Hz display, 144Hz IPS , and 300Hz IPS display also available, as well as a Nvidia GeForce 30 series with up to a RTX 3080 mobile and Intel 11th generation CPU. Features Tobii eye tracking with variant. Alienware X15 R1 (Discontinued) - 2021 thin and light