Buying a Laptop. Down to two options. Help.

Hey. So I'm buying a laptop, and after much research I've found two which are in my budget and have the kind of specs I'm looking for.
One, is the Toshiba Satellite L850 Satellite L850-Y5310.
The other is the Dell Inspiron 15R Special Edition.

Although the Dell has a better processor and graphics card, I'm worried about heating up, chipset problems and durability. Please give me ideas on which laptop has fewer heating problems, and their solutions, which chipsets would be more prone to manage future games, and basically of the two would last long.
I'm a gamer, and I don't really intend to use the laptop for notepad  

Here are the Specs:

Toshiba Satellite L850 Satellite L850-Y5310



Processor Core i7 (3rd Generation)
Variant 3610QM
Chipset Mobile Intel HM76 Express
Brand Intel
Clock Speed 2.3 GHz With Turbo Boost Upto 3.3 GHz
Cache 6 MB
Memory
Memory Slots 2 (Unused Slot - 0)
System Memory 8 GB DDR3
Storage
Hardware Interface SATA
RPM 5400
HDD Capacity 750 GB
Optical Disk Drive
Read/Write Speed 8x
Optical Drive DVD RW SuperMulti Drive with Dual Layer Support
Platform
Operating System Windows 7 Home Premium
Display
Screen Size 15.6 Inch
Resolution 1366 x 768 Pixel
Screen Type HD Clear SuperView LED Backlit Display
Graphics
Dedicated Graphics Memory Type DDR3
Dedicated Graphics Memory Capacity 2 GB
Graphic Processor AMD ATI 7610M



Dell Inspiron 15R Special Edition


PROCESSOR 3rd Generation Intel Core™ i7-3632QM processor (6M Cache, up to 3.2 GHz)
KEYBOARD Dell™ Backlight Chiclet Keyboard with Multi-touch Touchpad (English)
LCD BACK COVER LCD Back Cover - Aluminum (ICC)
DISPLAY 15.6" HD WLED True-Life (1366x768) - ICC
MEMORY 8GB 2 DIMM (4GB x2) DDR3 1600Mhz
HARD DRIVE 1.0TB 5400RPM SATA Hard Drive
VIDEO CARD AMD Radeon™ HD 7730M DDR3 2GB - ICC
OPTICAL DRIVE 12.7" SATA Tray Load DVD+/-RW
Operating System Windows® 7 Home Premium 64bit Media DVD
Base Inspiron 15R (7520) BTX Base
Driver Intel® 2230 Driver


Really appreciate any help and ideas you guys have.

Thanks a lot.