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Lenovo Legion 9i Gen 11 Flagship (Liquid Cooled RTX 5090) vs Lenovo ThinkPad T400 (Roll Cage Legend)

Compare processor microarchitectures, maximum GPU TGP, display color accuracy, RAM upgradability, and battery Watt-hours with automated win badge analysis.

Slot 1 • Lenovo2026
Lenovo Legion 9i Gen 11 Flagship (Liquid Cooled RTX 5090)

Lenovo Legion 9i Gen 11 Flagship (Liquid Cooled RTX 5090)

16" Mini-LED • 2.56 kg • x86_64

Slot 2 • Lenovo2008
Lenovo ThinkPad T400 (Roll Cage Legend)

Lenovo ThinkPad T400 (Roll Cage Legend)

14.1" TFT LCD • 2.36 kg • x86_64

Reasons to Choose Lenovo Legion 9i Gen 11 Flagship (Liquid Cooled RTX 5090)

  • ✓Thinner Profile (18.99 mm vs 31.9 mm)
  • ✓Faster Display Refresh Rate (165Hz vs 60Hz)
  • ✓Higher Peak Brightness (1200nits vs 250nits)
  • ✓Larger Battery Capacity (99.9Wh vs 84Wh)
  • ✓Higher Charger Wattage (330W vs 90W)
  • ✓Higher Max GPU TGP (175W vs 15W)
  • ✓More M.2 Expansion Slots (2slots vs 0slots)
  • ✓More Thunderbolt Ports (2ports vs 0ports)

Reasons to Choose Lenovo ThinkPad T400 (Roll Cage Legend)

  • ✓Lighter Chassis (2.36 kg vs 2.56 kg)
01.Platform & Compute Subsystem
Processor architecture, graphics envelope, and power ceiling
Processor / SoC
Intel Core Ultra 9 285HX (Arrow Lake-HX Extreme)
Intel Core 2 Duo (Penryn 45nm, 3MB/6MB L2 Cache)
CPU Core Architecture
24-core / 24-thread (up to 5.7 GHz Turbo)
2-core / 2-thread (2.26 GHz up to 2.80 GHz)
ISA Architecture
x86_64
x86_64
Graphics Hardware
NVIDIA GeForce RTX 5090 Laptop GPU 24GB GDDR7
Switchable ATI Mobility Radeon HD 3470 (256MB) + Intel GMA 4500MHD
Maximum Graphics TGP
175 W+160 W
15 W
Operating System
Windows 11 Pro
Windows XP Professional / Windows Vista Business
02.Memory & Storage Upgradability
RAM capacity, SODIMM vs soldered, and NVMe expansion
RAM Capacity Options
64 GB or 128 GB DDR5 Dual SO-DIMM
2 GB to 8 GB DDR3
RAM Technology / Speed
DDR5-6400 MHz Overclockable SO-DIMM
DDR3-1066 MHz SO-DIMM
RAM Upgradability
✅ User-Upgradable
✅ User-Upgradable
RAM Sockets / Form Factor
2x DDR5 SO-DIMM slots
2x 204-pin DDR3 SO-DIMM sockets (User-upgradable)
M.2 SSD Expansion Slots
2 Slots+2 slots
0 Slots
Storage Bus & Architecture
Dual M.2 2280 PCIe 5.0 x4 slots with dedicated copper heatsinks
Standard 2.5-inch 9.5mm SATA-II (3.0 Gbps) drive bay with Active Protection System shock mounting
03.Display & Color Accuracy
Panel technology, screen resolution, refresh rate, and luminance
Panel Technology
Mini-LED
TFT LCD
Screen Diagonal Size
16 inches
14.1 inches
Aspect Ratio
16:10
16:10
Resolution
3200 × 2000 px (3.2K 165Hz Mini-LED with 1536 dimming zones)
1440 × 900 px (WXGA+ CCFL/LED Backlit)
Display Refresh Rate
165 Hz+105 Hz
60 Hz
Color Gamut Coverage
100% Adobe RGB, 100% DCI-P3, VESA DisplayHDR 1000
60% sRGB
Peak Brightness
1200 nits+950 nits
250 nits
04.Chassis, Thermals & Battery
Enclosure weight, profile thickness, battery capacity, and charging
Chassis Weight
2.56 kg
2.36 kg-0.2 kg lighter
Chassis Thickness
18.99 mm-12.91 mm lighter
31.9 mm
Chassis Materials
Forged carbon fiber lid (each unit unique) with CNC aerospace aluminum base
Magnesium-alloy internal roll cage with carbon-fiber reinforced plastic (CFRP) lid
Cooling Solution
Integrated self-contained internal liquid cooling loop co-engineered with Cooler Master
Copper heatpipe assembly with single high-durability centrifugal blower
Battery Capacity
99.9 Wh+15.9 Wh
84 Wh
Bundled Charger Wattage
330 W+240 W
90 W
USB-C Power Delivery
Yes
No
05.I/O Ports & Connectivity
High-speed buses, external display outs, and media card readers
Port Complement
2x Thunderbolt 5, 2x USB-A 3.2 Gen 1, 1x USB-C 3.2 Gen 2, HDMI 2.1, SD card reader, 2.5G RJ-45 LAN
3x USB 2.0, VGA, ExpressCard/54 slot, RJ-45 Gigabit Ethernet, RJ-11 modem, UltraBay Slim bay, 3.5mm audio jacks
Thunderbolt Ports
2x Thunderbolt+2 ports
None
HDMI Revision
HDMI 2.1 FRL (up to 8K 120Hz)
VGA analog out / DisplayPort via Advanced Mini Dock
Card Reader
Full-size SDXC Reader
None Reader
3.5mm Headphone Jack
✅ Present
✅ Present
Wireless Networking
Intel Killer Wi-Fi 7 BE1750, Bluetooth 5.4, 2.5G Ethernet
Intel WiFi Link 5300 802.11a/b/g/n, Bluetooth 2.1, optional WWAN
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