Lenovo Legion 9i (18”, 10) vs Lenovo ThinkPad P51 comparison

Compare Lenovo Legion 9i (18”, 10)
Compare Lenovo ThinkPad P51
key specs
Display size18.00-inch15.60-inch
Display resolution3840x2400 pixels1920x1080 pixels
ProcessorIntel Core Ultra 9Core i7
RAM64GB8GB
OSWindows 11 Pro-
Hard diskNo500GB
SSD2TBNo
GraphicsNvidia GeForce RTX 5090-
Weight3.50 kg2.67 kg
general
BrandLenovoLenovo
ModelLegion 9i (18”, 10)ThinkPad P51
Release dateMay 8, 2025-
Launched in IndiaNo-
Model Name9i-
SeriesLegionThinkPad
Dimensions (mm)403.00 x 296.50 x 23.90250.95 x 77.47 x 30.48
Weight (kg)3.52.67
ColoursCarbon BlackBlack
MaterialAluminium-
Operating systemWindows 11 Pro-
Battery Capacity (WHR)99.99-
Model Number-P51
display
Size18.00-inch15.60-inch
Resolution3840x2400 pixels1920x1080 pixels
Refresh Rate240Hz-
processor
ProcessorIntel Intel Core Ultra 9 275HXIntel Core i7 7700HQ
Base Clock Speed-2.8 GHz
memory
RAM64GB8GB
RAM Slots4-
graphics
Dedicated GraphicsYes-
Graphics ProcessorNvidia GeForce RTX 5090-
Dedicated Graphic Memory24GB-
Dedicated Graphic Memory TypeGDDR7-
storage
Hard diskNo500GB
SSD2TBNo
connectivity
Wi-Fi 7Yes-
Bluetooth version5.4-
EthernetRJ45-
inputs
Web Camera5-megapixel-
Pointer DeviceTouchpad-
Backlit KeyboardYes-
TouchpadYes-
Internal MicYes-
SpeakersYes-
Finger Print Sensor-No
ports and slots
Thunderbolt 5 (Type C)2-
Number of USB Ports64
USB 3.2 Gen 2 (Type C)1-
HDMI PortYes-
Multi Card SlotSD Card Reader-
Headphone and Mic Combo JackYes-
RJ45 (LAN)Yes-

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