DELL XPS L502x or DELL XPS 15z

hi fellows.
suggest me which laptop i should buy?

DELL XPS L502x SPECS:

PROCESSOR 2nd generation Intel® Core™ i7-2670QM processor 2.20 GHz with Turbo Boost 2.0 up to 3.10 GHz
OPERATING SYSTEM Genuine Windows® 7 Home Premium, 64bit, English
OFFICE SOFTWARE Microsoft® Office Starter: reduced-functionality Word & Excel w/ ads. No PowerPoint or Outlook
MEMORY 8GB Shared Dual Channel DDR3 Memory
HARD DRIVE 750GB 7200 RPM SATA Hard Drive
VIDEO CARD NVIDIA® GeForce® GT 540M 2GB graphics with Optimus
HD DISPLAY 15.6 FHD B+RGLED TL (1920x1080) and Skype-Certified 2.0MP HD Webcam
INTERNAL OPTICAL DRIVE Tray Load Blu-ray® Triple Writer (reads and writes CDs, DVDs, BDs)
3G/4G MOBILE BROADBAND No Mobile Broad Band Selected
SOUND OPTIONS JBL 2.1 Speakers with Waves Maxx Audio 3\
WIRELESS + BLUETOOTH Intel© Centrino© Advanced-N 6230 & Bluetooth 3.0
Integrated Network Adapter Integrated 10/100/1000 Network Card
BATTERY OPTIONS 90 WHr 9-cell Lithium Ion Primary Battery
KEYBOARD Backlit Keyboard - English



DELL XPS 15z Specs

PROCESSOR 2nd generation Intel® Core™ i7-2640M processor 2.80 GHz with Turbo Boost 2.0 up to 3.50 GHz
OPERATING SYSTEM Genuine Windows® 7 Home Premium, 64-Bit, English
VIDEO CARD NVIDIA® GeForce® GT 525M 2GB graphics with Optimus
MEMORY 8GB Shared Dual Channel DDR3 1333MHz Memory
INTERNAL OPTICAL DRIVE 8X Slot Load CD/DVD Burner (Dual Layer DVD+/-R Drive)
WIRELESS + BLUETOOTH Intel© Centrino© Advanced-N 6230 & Bluetooth 3.0
BATTERY OPTIONS 64 WHr 8-Cell Lithium Ion Primary Battery
SOUND OPTIONS Waves Maxx Audio 3
HD DISPLAY Elemental Silver Aluminum 15.6" 300-nit FHD (1080P) WLED Display with Webcam
KEYBOARD Backlit Keyboard - English
Integrated Network Adapter Integrated 10/100/1000 Network Card




i am a student of electrical engineering (1st semester) . basically i have to make some presentations , some advance software like solid works , MATLAB , LATEX , etc .
beside these some entertainment .
i just wanted a latest laptop that can future proof for my engineering tenure.

 

Is budget a concern? With CAD and engineering XX as your primary concern, why not look at Dell's business line, like Latitude or Precision. They offer much better build quality than Dell's consumer line, and offer professional GPU solutions geared towards CAD (Quadro/FirePro).

 

actually i have a high tech desktop as well . so i can also do some work there . my budget is limited to US $1350. and i like dell xps 15 beauty as well.

 

Simply put, if you need the quad core processing power then go for XPS 15. I have it, and my only wish was that it shared the thinness of 15z and the keyboard's silver finish.

In my opinion, dual core i7s aren't worth it... i5s are practically the same CPUs as dual core i7s.

 

ok . i am going for l502x . should i choose ROXIO CREATER , FACIAL RECOGNITION and Creative SoundBlaster X-FI MB 1.2 .

 

Definitely get the 502x. This comes from a prior engineering student. I have the 702x and am blown away at how well it does things like Solidworks and the like, and the 502x won't be far behind in that regard.

Get a quad core CPU. Don't even consider a dual for engineering work. Also get the 540m. And the FHD. All of these are in the 502x config you listed.

All of those things you listed in your last post are software. Facial recognition is not all that great imo, perhaps others find differently. The Creative software is just that: audio tweaking software. Not required, you get the same awesome speakers either way. Roxio is decent but there are alternatives on the market, many even free.