As described at Lenovo US official site, Lenovo Legion Y730 is 15.6 or 17 inch gaming laptop powered by 8th Generation 2.3 GHz Intel i5-8300H quad-core processor or 2.2 GHz Intel i7-8750H hexa-core processor with discrete NVIDIA GeForce GTX 1050 Ti graphics video card with dedicated 4GB GDDR5 video memory.
This mobile computer features 802.11ac 2×2 Wi-Fi, Bluetooth 4.1, M.2 Card, 720p HD 1.0MP resolution camera, USB 3.1 Type-C Gen 2 / Thunderbolt 3 port, USB 3.1 Gen 1 port, USB 3.1 Gen 2 port, HDMI 2.0, Mini DisplayPort 1.4, backlit keyboard, Windows 10 Home 64Bit OS, and 4-cells 57Wh Li-ion battery with up to 6 hr of battery life.

LENOVO LEGION Y730 SPECS
Processor : Intel i5-8300H (2.3 GHz, 8MB Cache, 8 Threads, Up to 4.0 GHz, 4 Cores); Intel i7-8750H (2.2 GHz, up to 4.1 GHz, 9MB Cache, 6 Cores)
Graphics : NVIDIA GeForce GTX 1050 Ti (4GB GDDR5 memory); supports external digital monitor via HDMI or Mini DP; Max resolution: 4096×2160@60Hz (HDMI); 5120×3200@60Hz (Mini DP)
Chipset : Intel HM370 Chipset
Memory : 32GB max / 2666MHz DDR4, dual-channel capable, two DDR4 SO-DIMM sockets
Display : 15.6″ (396mm) FHD (1920×1080), anti-glare, LED backlight, IPS, 300 nits, 16:9 aspect ratio, 72% gamut, refresh rate 60Hz; 15.6″ (396mm) FHD (1920×1080), anti-glare, LED backlight, IPS, 300 nits, 16:9 aspect ratio, 72% gamut, refresh rate 144Hz; 17″ FHD (1920 x 1080) IPS (144 Hz : 300 nits / 72%, 60 Hz : 300 nits / 72%)
Storage : HDD / SATA 6.0Gb/s, 2.5″ wide, 7mm high, 5400 or 7200rpm; M.2 SSD / PCIe NVMe, PCIe 3.0 x 4, 32Gb/s
Optane Memory : Optional 16GB Intel Optane Memory, PCIe NVMe, PCIe 3.0 x 2, 16Gb/s, M.2
Ethernet : Gigabit Ethernet connection
WLAN : 802.11ac 2×2 Wi-Fi + Bluetooth 4.1, M.2 Card
Bluetooth : Bluetooth 4.1, Bluetooth combo adapter
Dimensions : 361.42mm x 267mm x 19.95-22.45mm (W x D x H)
Weight : 2.2 kg / 4.8 lb (15″); Up to 6.4 lbs (Lenovo Legion Y730-17ICH, Lenovo Legion Y730-17ICHg)
Ports : 1 x USB 3.1 Type-C Gen 2 / Thunderbolt 3; 1 x USB 3.1 Gen 1 (Always On); 2 x USB 3.1 Gen 2, HDMI 2.0, Mini DisplayPort 1.4, Ethernet (RJ-45), security keyhole, AC power adapter jack; headphone / microphone combo jack
Camera : 720p HD, 1.0MP resolution, fixed focus, with dual array microphone
Audio : HD Audio, Realtek ALC3268 codec / stereo speakers, 2W x 2, Dolby Atoms Sound System / dual array microphone, headphone / microphone combo jack
Keyboard : 6-row, multimedia Fn keys, RGB LED backlight, support anti-ghost
Touchpad : 2-button Mylar surface multi-touch touchpad
Security : Power-on password, hard disk password, supervisor password, security keyhole
Battery : Integrated 4 cells Li-ion 57Wh battery with up to 6 hr of battery life
AC adapter : 135W slim tip AC adapter
Operating system : Windows 10 Home 64Bit
LENOVO LEGION Y730 DRIVERS FOR WINDOWS 10 64 BIT
AUDIO / SOUND
Realtek Audio Driver
Version : 6.0.1.8597
Release date : 16 Apr 2019
File size : 14.3 MB
File name : mdly04af08r3.exe
https://download.lenovo.com/consumer/mobiles/mdly04af08r3.exe
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VIDEO GRAPHICS / DISPLAY / VGA
NVIDIA VGA Driver
Version : 25.21.14.1971
Release date : 31 Oct 2019
File size : 556.7 MB
File name : mdlb05af08r4.exe
https://download.lenovo.com/consumer/mobiles/mdlb05af08r4.exe
Intel VGA Driver
Version : 24.20.100.6292
Release date : 16 Apr 2019
File size : 200.1 MB
File name : mdl303af08r6.exe
https://download.lenovo.com/consumer/mobiles/mdl303af08r6.exe
CHIPSET
Intel Chipset Driver
Version : 1.0.0.10
Release date : 13 Dec 2018
File size : 6.3 MB
File name : wwdf04ae.exe
https://download.lenovo.com/consumer/mobiles/wwdf04ae.exe
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Intel Management Engine 12.0 Firmware
Version : 8XME02WW (12.0.32.1421)
Release date : 27 Jun 2019
File size : 2.17 MB
File name : 8xme02ww.exe
https://download.lenovo.com/consumer/mobiles/8xme02ww.exe
Intel Management Engine Interface (MEI) Driver
Version : 1828.12.0.1152
Release date : 16 Apr 2019
File size : 64.4 MB
File name : mdl803af08re.exe
https://download.lenovo.com/consumer/mobiles/mdl803af08re.exe
Intel Serial-IO (SIO) Driver
Version : 30.100.1727.1
Release date : 13 Dec 2018
File size : 1.3 MB
File name : mdl502af.exe
https://download.lenovo.com/consumer/mobiles/mdl502af.exe
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Intel Dynamic Platform and Thermal Framework (DPTF) Driver
Version : 8.4.11000.6436
Release date : 09 Aug 2018
File size : 4.1 MB
File name : mdla01af.exe
https://download.lenovo.com/consumer/mobiles/mdla01af.exe
WEBCAM / WEB CAMERA
Camera Driver (AzureWave, Bison, Chicony, Liteon)
Version : Realtek_10.0.17134.20067, Sunplus_5.0.18.32
Release date : 16 Apr 2019
File size : 2.2 MB
File name : mdle03af08rf.exe
https://download.lenovo.com/consumer/mobiles/mdle03af08rf.exe
STORAGE / HARD DRIVE / SSD
Intel Rapid Storage Technology (IRST) Driver
Version : 16.7.1.1012
Release date : 16 Apr 2019
File size : 14.8 MB
File name : mdl705af08rd.exe
https://download.lenovo.com/consumer/mobiles/mdl705af08rd.exe
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Cursor Speed
Version : 2.0
Release date : 16 Apr 2019
File size : 516.6 KB
File name : mdlm01af.exe
https://download.lenovo.com/consumer/mobiles/mdlm01af.exe
THUNDERBOLT
Intel Thunderbolt (TBT) Driver
Version : 17.4.76.9
Release date : 09 Aug 2018
File size : 3 MB
File name : mdl901af.exe
https://download.lenovo.com/consumer/mobiles/mdl901af.exe
WIRELESS LAN WLAN WI-FI NETWORK
Intel WLAN Driver
Version : 20.100.0.4
Release date : 16 Apr 2019
File size : 3.9 MB
File name : mdlg03af08rb.exe
https://download.lenovo.com/consumer/mobiles/mdlg03af08rb.exe
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WLAN Driver (Qualcomm, Realtek)
Version : Realtek_2024.0.4.102
Release date : 16 Apr 2019
File size : 2.5 MB
File name : mdlf02af08ra.exe
https://download.lenovo.com/consumer/mobiles/mdlf02af08ra.exe
ETHERNET LAN
Realtek LAN Driver
Version : 10.27.511.2018
Release date : 13 Dec 2018
File size : 5.4 MB
File name : mdl002af.exe
https://download.lenovo.com/consumer/mobiles/mdl002af.exe
BLUETOOTH
Bluetooth Driver (Qualcomm, Realtek)
Version : Realtek_1.5.1012.3
Release date : 16 Apr 2019
File size : 1 MB
File name : mdld02af08r9.exe
https://download.lenovo.com/consumer/mobiles/mdld02af08r9.exe
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Intel Bluetooth Driver
Version : 20.70.0.4
Release date : 16 Apr 2019
File size : 971 KB
File name : mdlc02af08r5.exe
https://download.lenovo.com/consumer/mobiles/mdlc02af08r5.exe
SOFTWARE & UTILITIES
Lenovo Diagnostics for Windows 64-bit
Version : v4.31.1
Release date : 05 Sep 2019
File size : 40 MB
File name : ldiag_4.31.1_windows_x64.exe
https://download.lenovo.com/pccbbs/thinkvantage_en/ldiag_4.31.1_windows_x64.exe
Energy Manager Driver with Yoga Mode Control
Version : 15.11.28.190 191 MS signed
Release date : 03 Sep 2019
File size : 1.3 MB
File name : wwe00bae07jw.exe
https://download.lenovo.com/consumer/mobiles/wwe00bae07jw.exe
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Lenovo Migration Assistant
Version : 2.0.1.39
Release date : 09 Jul 2019
File size : 48.3 MB
File name : lma20139.exe
https://download.lenovo.com/consumer/desktop/lma20139.exe
Components for Vantage Gaming Features
Version : 1.0.0.19
Release date : 21 Mar 2019
File size : 13.6 MB
File name : wwdf08ae08mw.exe
https://download.lenovo.com/consumer/mobiles/wwdf08ae08mw.exe
Registry Key
Version : 2.0
Release date : 13 Dec 2018
File size : 516.6 KB
File name : mdlm01af.exe
https://download.lenovo.com/consumer/mobiles/mdlm01af.exe
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Magic Y Key
Version : 1.2.0.3
Release date : 13 Dec 2018
File size : 13.2 MB
File name : wwmy020e.exe
https://download.lenovo.com/consumer/mobiles/wwmy020e.exe