IBM ThinkPad 600 vs Lenovo ThinkPad X1 Carbon Gen 14

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

ThinkPad 600 compared with ThinkPad X1 Carbon Gen 14

	IBMThinkPad 600	LenovoThinkPad X1 Carbon Gen 14
Overview
Released
Released	April 1998	March 2026
Display
Screen size
Screen size	13.3″	14″
Resolution
Resolution	1024 × 768	1920 × 1200 (better)
Panel
Panel	–	IPS LCD
Refresh rate
Refresh rate	–	60 Hz
Brightness
Brightness	150 nits	500 nits (better)
Touchscreen
Touchscreen	No	Yes
Display type
Display type	Listed US 2645-51U has 13.3-inch active-matrix TFT XGA LCD, 100:1 maker contrast and 75 ms response; 150 nits on AC or 90 nits on battery. Other original600 configurations offered 12.1-inch SVGA TFT or 13-inch XGA HPA dual-scan LCD; panel subtype/native refresh unpublished	WUXGA IPS, 16:10; in-cell touch (low power) or on-cell touch with ThinkPad Privacy Guard
Colour range
Colour range	–	100% sRGB
Screen finish
Screen finish	–	Anti-glare
Display features
Display features	–	1,500:1 contrast; 85° viewing angles; Eyesafe Certified 2.0; 88.8% screen-to-body ratio; Privacy Guard with Privacy Alert on Privacy Guard models
Performance
Processor
Processor	Intel Mobile Pentium II 266 MHz	Intel Core Ultra 5 325 or Intel Core Ultra 7 356H
CPU cores
CPU cores	1	8 or 16
CPU threads
CPU threads	1	8 or 16
Graphics
Graphics	NeoMagic MagicGraph128XD	Intel Graphics
AI engine (NPU)
AI engine (NPU)	–	47 TOPS or 50 TOPS
Memory
Memory	32 MB	32 GB (better)
Storage
Storage	4 GB	256 GB to 1 TB (better)
CPU
CPU	Listed US 2645-51U has Mobile Pentium II 266 MHz, 66 MHz bus and 512 KB L2 cache; original600 also offered Pentium MMX 233 MHz or Mobile Pentium II 233 MHz	Core Ultra 5 325 with 4 P-cores and 4 LP E-cores (12 MB cache); Core Ultra 7 356H with 4 P-cores, 8 E-cores and 4 LP E-cores (18 MB cache)
GPU
GPU	NeoMagic MagicGraph128XD NM2160B with 2 MB embedded graphics memory; XGA displays 65,536 simultaneous colours, SVGA supports 16 million	Integrated Intel Graphics (up to 40 TOPS), shared memory, DirectX 12 Ultimate
AI engine
AI engine	–	Copilot+ PC
Memory type
Memory type	Listed 32 MB SDRAM standard; Pentium II versions support 288 MB maker maximum with two 144-pin SO-DIMM expansion sockets; Pentium MMX versions have 256 MB maximum; 66 MHz non-parity 3.3 V SDRAM	LPDDR5X-8533, soldered (not upgradable), dual-channel; may run at a lower speed due to platform limits
Storage type
Storage type	Listed US 2645-51U has removable 4.0 GB Enhanced IDE hard drive and standard 24X–10X CD-ROM; UltraslimBay supports interchangeable diskette/CD-ROM and optional DVD, LS-120, Zip or second hard drive, with differing warm/cold-swap requirements	One M.2 2280 PCIe 5.0 x4 slot; PCIe 4.0 x4 or PCIe 5.0 x4 NVMe SSD up to 2 TB, Opal 2.0
Cooling
Cooling	–	Fans; Lenovo quotes up to 20% better heat dissipation and 30 W sustained power
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 3 hours	Up to 32.8 hours
Battery capacity
Battery capacity	–	58 Wh
Weight
Weight	2.55 kg	0.977 kg (better)
Thickness
Thickness	36.5 mm	14.3 mm (better)
Width × depth
Width × depth	300 × 240 mm	312.5 × 215.75 mm
Battery life detail
Battery life detail	Removable lithium-ion battery, maker 3-hour claim; no non-disruptive battery exchange. Headline 2.55 kg is upper maker configuration weight, within 2.14–2.55 kg range; original CD-ROM review samples differ	58 Wh Li-ion; MobileMark 30 up to 19.2 hr, JEITA 3.0 up to 18.9 hr video and 38.0 hr idle (Lenovo test with Core Ultra 5 325, 16 GB and WUXGA Privacy Guard touch screen)
Charger
Charger	56 W barrel-connector AC adapter	65 W USB-C (PD 3.0) adapter, including nano and slim GaN versions; offerings vary by country
Fast charging
Fast charging	–	Rapid Charge to 80% in 1 hour with the 65 W adapter (when off, in standby or hibernating)
Materials
Materials	–	Carbon fibre top cover and aluminium bottom cover (WUXGA models); MIL-STD-810H tested
Colours
Colours	–	Black; Black FIFA Edition
Connections
Ports
Ports	USB-A, headphone jack	3 × Thunderbolt 4, USB-A, HDMI, headphone jack
Wi-Fi
Wi-Fi	–	Wi-Fi 7
Bluetooth
Bluetooth	–	5.4
Webcam
Webcam	–	5MP with IR
Operating system
Operating system	Windows	Windows
Port detail
Port detail	One USB, VGA, 9-pin serial, parallel, external diskette connector, PS/2 keyboard/mouse connection, infrared up to 4 Mbps, modem and separate audio input/output; two TypeI/II or one TypeIII PC Card slots with CardBus and Zoomed Video. Ethernet requires an optional PC Card/docking solution	3 × Thunderbolt 4 with USB PD 15–65 W and DisplayPort 2.1; USB-A 5 Gbps (Always On); HDMI 2.1 up to 4K 60 Hz; 3.5 mm headphone/mic combo jack; nano-SIM slot on WWAN models
External displays
External displays	–	Up to three external displays (four including the built-in); Thunderbolt up to 8K 60 Hz, HDMI up to 4K 60 Hz
Keyboard
Keyboard	Full-size alphanumeric keyboard with nine Fn-key functions and flat palm rest	6-row, spill-resistant, backlit; 1.5 mm key travel (1.35 mm on Fn row and G/H/B); Copilot key; TrackPoint
Trackpad
Trackpad	No touchpad; TrackPoint with Press-to-Select, Release-to-Select and centre scroll/magnifier button	Glass haptic touchpad (80 × 130 mm) or Mylar 3-button trackpad (80 × 120 mm)
Speakers
Speakers	Front stereo 0.5 W speakers with keyboard volume controls	Stereo 2 W × 2, Dolby Atmos
Microphones
Microphones	Internal microphone with external audio input	Dual-microphone array, 360° far-field
Biometrics
Biometrics	Power-on, supervisor and hard-drive passwords; security keyhole and optional Allen screw for disk retention	Fingerprint reader in the power button (match-on-chip); IR camera for Windows Hello