Dell XPS 15 L502X vs Dell XPS M1530

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

Better figure, where one is clearly better

XPS 15 L502X compared with XPS M1530
DellXPS 15 L502XDellXPS M1530
Overview
Released20112007
Display
Screen size15.6″15.4″
Resolution1920 × 1080 (better)1280 × 800 or 1440 × 900
Refresh rate60 Hz60 Hz
Brightness–220 nits or 250 nits
TouchscreenNoNo
Display type15.6-inch TrueLife LCD; main Full HD RGBLED screen. HD WLED and HD multi-touch WLED options also appear in Dell's setup guide; 1366 × 768 HD resolution confirmed by Notebookcheck15.4-inch TrueLife LCD; main screen is the original 1280 × 800 CCFL option at 60 Hz and 220 cd/m². Revised maker manual also lists 1440 × 900 CCFL at 250 cd/m², 1440 × 900 WLED at 300 cd/m² and 1680 × 1050 CCFL at 200 cd/m²
Screen finishGlossy TrueLife surfaceGlossy TrueLife surface
Display features60 Hz refresh and up to 135° opening in the maker guide. Notebookcheck measured 262.2 cd/m² average brightness on the tested Full HD panel; maker brightness is not publishedUp to 140° opening angle in Dell's manual
Performance
ProcessorIntel Core i5-2410MIntel Core 2 Duo T7500
CPU cores22
CPU threads4–
GraphicsNVIDIA GeForce GT 540MNVIDIA GeForce 8600M GT
Memory4 GB (better)2 GB
Storage500 GB (better)160 GB
CPUSecond-generation Core i3, i5 or i7 options with Intel HM67 chipset. Listed Core i5-2410M, 4 GB, 500 GB and Full HD pairing is the exact April 2011 European Notebookcheck configurationCore 2 Duo options; listed T7500, 2 GB and 160 GB pairing with 1440 × 900 display is the exact January 2008 US Laptop Mag review configuration. Later revised owner manual adds 45 nm Core 2 and Japan-only Celeron options
GPUIntel HD Graphics with NVIDIA Optimus; GeForce GT 525M with 1 GB DDR3 or GeForce GT 540M with 2 GB DDR3GeForce 8400M GS with 128 MB or GeForce 8600M GT with 256 MB dedicated DDR3 memory. Dell's revised manual labels the second GPU 8600M GS; the launch announcement describes DirectX 10 support and both exact-model reviews identify 8600M GT in tested configurations
Memory typeDDR3-1066 or DDR3-1333; two user-accessible SO-DIMM slots, 2 GB minimum and 8 GB maker maximumTwo user-accessible DDR2-667 SO-DIMM slots; revised maker manual maximum 8 GB, while December 2007 Notebookcheck review states 4 GB
Storage typeListed configuration has a 500 GB 7200 rpm SATA hard drive and Blu-ray combo drive. Hard-drive replacement requires further disassembly than the memory cover, according to NotebookcheckInternal replaceable hard drive; listed US review configuration has a 160 GB 5400 rpm drive and optional slot-loading Blu-ray. Slot-loading DVD±RW was also available
Battery and size
Weight–2.67 kg
Thickness38.2 mm35.1 mm (better)
Width × depth381 × 265.4 mm357 × 263 mm
Battery life detailSix-cell or nine-cell lithium-ion packs, 11.1 V; maker does not publish capacity or a fixed runtime. Notebookcheck identifies its nine-cell pack as 90 Wh. Maker says configurable to less than 2.8 kg with six-cell battery; no exact minimum weight is published. Body height varies from 32.2 to 38.2 mm, and the nine-cell pack raises it furtherSix-cell and nine-cell smart lithium-ion packs; Dell publishes 11.1 V but no Wh capacity or runtime claim. Notebookcheck identifies 56 Wh and 85 Wh options. Main weight describes the six-cell configuration; thickness varies from 23.7 to 35.1 mm in the maker manual
Charger90 W or 130 W adapter; 100–240 V AC input65 W or 90 W adapter; 100–240 V AC input
Fast chargingApproximately four hours with the computer switched offApproximately three hours with the computer switched off
MaterialsAluminium surfaces and silver finish described by NotebookcheckBrushed aluminium accents; aluminium, magnesium and steel chassis components described by Notebookcheck
Colours–Tuxedo Black, Crimson Red and Alpine White in Dell's reproduced introduction announcement
Connections
Ports3 × USB-A, HDMI, Ethernet, SD card slot, 2 × headphone jack3 × USB-A, HDMI, Ethernet, SD card slot, 2 × headphone jack
Wi-FiWi-Fi a/b/g/n, depending on installed module–
BluetoothOptional BluetoothOptional Bluetooth
Webcam2 MP, 720p video2 MP
Operating systemWindowsWindows
Port detailTwo USB 3.0 Type-A and one eSATA/USB combo with PowerShare, HDMI, Mini DisplayPort, Gigabit Ethernet, headphone output, headphone/digital S/PDIF combo and microphone input; nine-format card reader. Optional TV tuner with MCX antenna connector, WWAN, WiMAX and WiDi depend on configurationThree USB 2.0 Type-A, HDMI, VGA, seven-pin S-Video, four-pin IEEE 1394, 10/100 Ethernet, two headphone outputs and microphone input; ExpressCard/34 or /54 slot and eight-format card reader. WLAN, optional WWAN, UWB and Bluetooth in Dell's manual; wireless standards depend on the installed card
KeyboardQWERTY, AZERTY or Kanji; 87 keys on European layout, optional backlighting86 keys US/Canada, 87 Europe, 90 Japan or 88 Brazil; QWERTY, AZERTY or Kanji layouts
Trackpad100 × 56 mm active area with separate buttons and multi-touch gestures71.7 × 34.0 mm active area; separate buttons
SpeakersTwo 4 W main speakers and 12 W subwoofer; Realtek ALC665 audio controllerTwo speakers, 2 W per channel; Sigmatel STAC9228 audio controller
Biometrics–Fingerprint reader included in the reproduced Dell launch announcement

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