SIDE-BY-SIDE HARDWARE AUDITZero Pricing • Objective Specification Advantage Highlighting
Lenovo ThinkPad T400 (Roll Cage Legend) vs Lenovo ThinkPad X1 Carbon Gen 1 (Carbon Pioneer)
Compare processor microarchitectures, maximum GPU TGP, display color accuracy, RAM upgradability, and battery Watt-hours with automated win badge analysis.
Slot 1 • Lenovo2008
Lenovo ThinkPad T400 (Roll Cage Legend)
14.1" TFT LCD • 2.13 kg • x86_64
Slot 2 • Lenovo2012
Lenovo ThinkPad X1 Carbon Gen 1 (Carbon Pioneer)
14" TFT LCD • 1.36 kg • x86_64
Reasons to Choose Lenovo ThinkPad T400 (Roll Cage Legend)
- ✓Larger Battery Capacity (84Wh vs 45Wh)
- ✓User-Upgradable RAM SODIMM/LPCAMM2 (vs Soldered)
Reasons to Choose Lenovo ThinkPad X1 Carbon Gen 1 (Carbon Pioneer)
- ✓Lighter Chassis (1.36 kg vs 2.13 kg)
- ✓Thinner Profile (18.8 mm vs 27.6 mm)
- ✓Higher Peak Brightness (300nits vs 250nits)
- ✓Higher Max GPU TGP (17W vs 12W)
01.Platform & Compute Subsystem
Processor architecture, graphics envelope, and power ceilingProcessor / SoC
Intel Core 2 Duo P8400 / P8600 / T9400 (Penryn 45nm, 3MB/6MB L2)
Intel Core i5-3427U / Core i7-3667U (Ivy Bridge 22nm 17W TDP)
CPU Core Architecture
2-core / 2-thread (2.26 GHz up to 2.53 GHz)
2-core / 4-thread (2.0 GHz base, 3.2 GHz Turbo)
ISA Architecture
x86_64
x86_64
Graphics Hardware
Switchable Graphics: ATI Mobility Radeon HD 3470 (256MB) / Intel GMA 4500MHD
Intel HD Graphics 4000
Maximum Graphics TGP
12 W
17 W+5 W
Operating System
Windows XP Professional / Windows Vista Business
Windows 7 Professional / Windows 8 Pro
02.Memory & Storage Upgradability
RAM capacity, SODIMM vs soldered, and NVMe expansionRAM Capacity Options
2 GB / 4 GB / 8 GB DDR3
4 GB / 8 GB DDR3L (Soldered)
RAM Technology / Speed
DDR3-1066 MHz SODIMM
DDR3L-1333 MHz
RAM Upgradability
✅ User-Upgradable✅ Upgradable RAM
Soldered Onboard
RAM Sockets / Form Factor
2x SO-DIMM (Upgradable to 8 GB)
Soldered Onboard
M.2 SSD Expansion Slots
1 Slot
1 Slot
Storage Bus & Architecture
2.5-inch SATA II (3.0 Gbps) drive bay + Ultrabay Slim hot-swappable secondary drive
Lenovo proprietary 20+6 pin blade SSD connector
03.Display & Color Accuracy
Panel technology, screen resolution, refresh rate, and luminancePanel Technology
TFT LCD
TFT LCD
Screen Diagonal Size
14.1 inches
14 inches
Aspect Ratio
16:10
16:9
Resolution
1440 × 900 px (WXGA+ LED backlit display)
1600 × 900 px (HD+ Matte Display)
Display Refresh Rate
60 Hz
60 Hz
Color Gamut Coverage
60% sRGB
72% sRGB
Peak Brightness
250 nits
300 nits+50 nits
04.Chassis, Thermals & Battery
Enclosure weight, profile thickness, battery capacity, and chargingChassis Weight
2.13 kg
1.36 kg-0.77 kg lighter
Chassis Thickness
27.6 mm
18.8 mm-8.8 mm lighter
Chassis Materials
Magnesium-alloy internal Roll Cage structure with carbon-fiber reinforced plastic lid
Multi-layer carbon-fiber reinforced roll cage with magnesium-alloy bottom
Cooling Solution
Copper heatsink with single high-durability quiet fan and intake vents
Thin-blade centrifugal blower with RapidCharge heat dissipation
Battery Capacity
84 Wh+39 Wh
45 Wh
Bundled Charger Wattage
90 W
90 W
USB-C Power Delivery
No
No
05.I/O Ports & Connectivity
High-speed buses, external display outs, and media card readersPort Complement
3x USB 2.0, VGA D-Sub video port, Gigabit Ethernet RJ-45, Modem RJ-11, IEEE 1394 FireWire 400, ExpressCard/54, 3.5mm mic in & headphone out, ThinkLight keyboard LED
1x USB 3.0, 1x USB 2.0 (always-on), Mini DisplayPort, 4-in-1 SD card slot, 3.5mm combo audio, rectangular slim-tip power jack
Thunderbolt Ports
None
None
HDMI Revision
None (VGA & DisplayPort via optional Advanced Mini Dock)
Mini DisplayPort 1.1a
Card Reader
None Reader
Full-size SDXC Reader
3.5mm Headphone Jack
✅ Present
✅ Present
Wireless Networking
Intel WiFi Link 5100/5300 802.11a/g/n, Bluetooth 2.1, Optional WWAN 3G
Intel Centrino Advanced-N 6205S 802.11a/b/g/n, Bluetooth 4.0, Optional 3G Gobi