Apple Macintosh PowerBook Duo 280 vs Apple PowerBook G4 (15-inch, 1.5/1.33GHz)

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

Better figure, where one is clearly better

Macintosh PowerBook Duo 280 compared with PowerBook G4 (15-inch, 1.5/1.33GHz)
AppleMacintosh PowerBook Duo 280ApplePowerBook G4 (15-inch, 1.5/1.33GHz)
Overview
Released1994April 2004
Display
Screen size9″15.2″
Resolution640 × 4001280 × 854 (better)
TouchscreenNoNo
Display typeBacklit active-matrix TFT LCD with 16 grey levels; 640 × 400 pixels. The developer note specifies a CCFL backlight and 512 KB video memory15.2-inch TFT widescreen; panel technology and refresh unpublished.
Performance
ProcessorMotorola 68LC040 66 MHz (PowerBook 540c)PowerPC G4 1.33 GHz (PowerBook 15-inch 2004) or PowerPC G4 1.5 GHz (PowerBook 15-inch 2004)
CPU cores11
Graphics–ATI Mobility Radeon 9700 (64 MB DDR) or ATI Mobility Radeon 9700 (128 MB DDR)
Memory4 MB or 12 MB256 MB, 512 MB or 2 GB (better)
Storage240 MB60 GB to 80 GB (better)
CPUMotorola 68LC040 with integrated memory-management unit, 66 MHz internal clock and 33 MHz external bus. No FPU upgrade; the Duo Dock and Dock II floating-point coprocessors and Dock II external cache cannot be used by this processor1.33 or 1.5 GHz PowerPC G4, 512 KB on-chip L2 and 167 MHz system bus. Exact silicon supplier omitted.
GPU–ATI Mobility Radeon 9700 with 64 MB DDR; 128 MB build-to-order option restricted to 1.5 GHz configurations.
Memory type4 MB on the logic board and one Duo memory-card slot; maximum 40 MB. An 8 MB expansion card gives the 12 MB configuration; higher capacities require third-party cardsPC2700 DDR333: 256 MB standard on 1.33 GHz, 512 MB on 1.5 GHz; two SO-DIMM slots support up to 2 GB.
Storage typeInternal 240 MB SCSI hard drive. The developer note also lists 200 MB configurations, whereas Apple's support summary specifies a minimum of 240 MB and the October 1994 catalogue lists 240 MB. Optional external SuperDrive floppy needs docking accessories1.33 GHz base: 60 GB 4200 rpm, with 80 GB 5400 rpm build-to-order option. 1.5 GHz base: 80 GB 4200 rpm, with 80 GB 5400 rpm alternative. Combo drive or 4× DVD-R SuperDrive; drive-speed variants retained here rather than duplicate capacity rows.
Battery and size
Battery life (maker's claim)Up to 4 hoursUp to 4.5 hours
Battery capacity–50 Wh
Weight1.9 kg (better)2.6 kg
Battery life detailHigh-capacity Type II nickel-metal hydride battery with a maker typical-life claim of 2–4 hours in Apple Facts and Apple Directions. The later support summary lists Type III; the developer note identifies Type III as a separately available replacement50 Wh lithium-ion, up to 4.5 hours. Maker reference 2.6 kg includes battery and optical drive; varies by configuration/manufacturing. Published dimensions: height 2.8 cm, width 34.8 cm, depth 24.1 cm.
Charger–65 W power adapter
Materials–Aluminium enclosure
Connections
Ports–2 × USB-A, Ethernet, headphone jack
Wi-Fi–AirPort Extreme 802.11g/b
Bluetooth–1.1
Operating systemmacOSmacOS
Port detailMini-DIN eight-pin serial/LocalTalk, 152-pin docking connector, power input and optional modem port. Most desktop expansion requires a Duo dockTwo USB 2.0 ports, one FireWire 400 and one FireWire 800, Gigabit Ethernet, 56K V.92 modem, Type I/II PC Card slot, DVI, S-video, audio input and headphone output.
External displaysExternal display support through Duo Dock or Duo MiniDock; no built-in video connectorDual display/mirroring; external resolution up to 2048 × 1536. DVI-to-VGA and S-video-to-composite adapters included; ADC adapter separate.
KeyboardIntegral keyboard with trackball and palm restsFull-size keyboard; ambient-sensor backlight standard on 1.5 GHz and optional on 1.33 GHz.
TrackpadBuilt-in trackballTap, double-tap and drag support
Speakers8-bit monaural sound input and output with integral speaker, documented in the developer noteStereo speakers with midrange-enhancing third speaker
MicrophonesBuilt-in microphone in Apple Facts and the developer note, despite the support summary's Mic Type noneInternal omnidirectional microphone
In the boxSystem 7.1.1 with PowerBook Duo Enabler 2.0; PowerBook Mobility Bundle preinstalled; power adapter included. Developer note lists the Express Modem with the 12 MB configuration; Apple support records introduction on 16 May 1994. Apple Directions July 1994 says the Duo 280 and 280c had begun shipping last month and were available immediately worldwide; issue dating does not establish a first-sale day. Headline retains confirmed retail-year precision. Apple Facts October 1994 lists this model as currentApple UK confirms immediate availability on 19 April 2004; Mac OS X 10.3 Panther and iLife ’04 supplied.

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