Lenovo Legion S7 15ACH6 (82K8) vs. Lenovo Legion Y740-15IRHg (81UH)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo Legion S7 15ACH6 (82K8) and Lenovo Legion Y740-15IRHg (81UH). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.

Lenovo Legion S7 15ACH6 (82K8) Review

Advantages and disadvantages of Lenovo Legion S7 15ACH6 (82K8) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful amd processor

slim lightweight design

high refresh rate screen

efficient thermal management

solid build quality

average battery life

limited port selection

no webcam included

higher price point

Lenovo Legion Y740-15IRHg (81UH) Review

Advantages and disadvantages of Lenovo Legion Y740-15IRHg (81UH) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful gaming performance

vivid 144Hz display

premium build quality

effective thermal management

rgb keyboard lighting

heavier than competitors

short battery life

limited storage capacity

higher price point

Laptop Comparison and Tests

Difference between Lenovo Legion S7 15ACH6 (82K8) and Lenovo Legion Y740-15IRHg (81UH)
85 % - Design
83 % - Display
85 % - Performance
85 % - Connectivity
76 % - Battery
82 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
65 % - Battery

Laptop Specifications Comparison

Lenovo Legion S7 15ACH6 (82K8) vs. Lenovo Legion Y740-15IRHg (81UH) Comparison Chart
DESIGN AND DIMENSIONS Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.6 cm x 25.2 cm x 1.89 cm 36.1 cm x 26.5 cm x 2.385 cm
Weight 1.9 kg 2.2 kg
Case Material Aluminum Aluminum
Colour Shadow black Black
DISPLAY Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Screen Size (Type) 15.6" - IPS 15.6" - IPS
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 2560 x 1440 (WQHD) 1920 x 1080 (Full HD)
V-Sync Rate at Max Res. 165 Hz 144 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 300 cd/m² 500 cd/m²
Colour Gamut 100% sRGB 72%
Features Anti-glare, NVIDIA G-SYNC compatible, FreeSync Technology, 178° viewing angle, DC dimmer, Dolby Vision Anti-glare, NVIDIA G-SYNC compatible, HDR 400 compatible, Dolby Vision
PROCESSOR Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
CPU AMD Ryzen 7 5800H / 3.2 GHz Intel Core i7 (9th Gen) 9750H / 2.6 GHz
Max Turbo Speed 4.4 GHz 4.5 GHz
Number of Cores 8-core 6-core
Cache L3 - 16 MB 12 MB
64-bit Computing - Yes
Chipset - Mobile Intel HM370
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
RAM 16 GB (1 x 8 GB + 8 GB (soldered)) 32 GB (2 x 16 GB)
Max RAM Supported 24 GB 32 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 3200 MHz 2666 MHz
Rated Speed 3200 MHz 2666 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 1 2
Empty Slots 0 0
STORAGE Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Multi-GPU Configuration 1 single GPU card / integrated GPU 1 single GPU card / integrated GPU
Graphics Processor (GPU) NVIDIA GeForce RTX 3060 / AMD Radeon Graphics NVIDIA GeForce RTX 2080 / Intel UHD Graphics 630
Max Monitors Supported 2 external monitor(s) -
Video Memory 6 GB GDDR6 SDRAM 8 GB GDDR6 SDRAM
Video System Features NVIDIA Resizable BAR, Advanced Optimus, Dynamic Boost 2.0 Max-Q design
Gaming Yes Yes
Camera Yes - 720p Yes - 720p
Resolution - 1 Megapixel
Camera Features Privacy shutter, fixed focus Privacy shutter
Sound Harman/kardon stereo speakers, dual array microphone Stereo speakers, dual array microphone
Codec Realtek ALC3306 Realtek ALC3286
Compliant Standards High Definition Audio, Dolby Atmos High Definition Audio, Dolby Atmos
Audio Features Smart Amp, Nahimic audio -
VR Ready Yes Yes
COMMUNICATIONS Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.1 802.11a/b/g/n/ac, Bluetooth 5.0
Wireless Controller Killer Wi-Fi 6 AX1650 - M.2 Card Killer Wireless-AC 1550i - M.2 Card
Network Interface - Gigabit Ethernet
Features Dual stream (2x2) -
BATTERY Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Technology Lithium polymer Lithium Ion
Battery Capacity (Size) 71 Wh 57 Wh
Battery Life Up to 7.8 hours Up to 5 hours
AC ADAPTER Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Input AC 100-240 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 230 Watt 230 Watt
INPUT Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight Yes (RGB) Yes (RGB)
Features Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad, glass touchpad Anti-ghosting, multi-touch touchpad
CONNECTIONS & EXPANSIONS Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Slots 2 x M.2 Card (1 free) -
Interfaces USB 3.2 Gen 2
USB 3.2 Gen 2 (Always On)
2 x USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery)
Headphone/microphone combo jack
USB 3.1 Gen 1
Mini DisplayPort
USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort 1.4 Alt Mode)
HDMI
LAN
Headphone/microphone combo jack
USB 3.1 Gen 1 (Always On)
USB 3.1 Gen 2
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) -
SOFTWARE Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 10 Pro 64-bit Edition - English
Software Included Microsoft Office (Trial) Microsoft Office (Trial)
MISCELLANEOUS Lenovo Legion S7 15ACH6 (82K8) Lenovo Legion Y740-15IRHg (81UH)
Included Accessories Power adapter Power adapter
Integrated Options Accelerometer RGB lighting
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Firmware Trusted Platform Module (TPM 2.0) Security Chip
Security Slot Type - Kensington security slot
Theft/Intrusion Protection - Security lock slot (cable lock sold separately)
Features Administrator password, power-on password, 100W power delivery, Rapid Charge Express Administrator password, hard drive password, power-on password, Corsair iCUE
Compliant Standards Energy-Related Products (ErP) Lot 3 RoHS, Energy-Related Products (ErP) Lot 3
SAR Value - 0.01 W/kg (body), 0.01 W/kg (limb)
ENERGY STAR Certified Yes -
Specific Absorption Rate (SAR) - 0.01 W/kg (body)
0.01 W/kg (limb)
Max Operating Temperature 35 °C -
Min Operating Temperature 5 °C -
Humidity Range Operating 8 - 95% -
Manufacturer Warranty Limited warranty - 1 year - pick-up and return Limited warranty - 2 years - pick-up and return
Limited warranty - battery - 2 years
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