Masters, please come in and recommend a book

Lenovo Y470P-ISE---6600 Screen size: 14 inches 1366x768 CPU model: Intel Core i7 2670QM CPU frequency:

Memory capacity: 4GB DDR3 Hard disk capacity: 750GB SATA graphics chip:

AMD Radeon HD 7690M Operating System: Windows 7

Lenovo Y580N-IFI---6600

Affiliation: Lenovo Y580 Series Screen size: inches 1366x768 CPU model: Intel Core i5 3210M

CPU Frequency: Memory Capacity: 4GB DDR3 Hard Disk Capacity: 1TB SATA

Graphics chip: NVIDIA GeForce GTX 660M INTEL GMA HD 4000 Operating system: Windows 7

Data interfaces: 2 of the common e-SATA interfaces).

ASUS N56XI321VZ-SL (4GB 750GB) - 6950

CPU model: Intel Core i5 3210M CPU Frequency: Memory capacity:

4GB DDR3 1333MHz Hard disk capacity: 750GB 7200 rpm, SATA graphics chip: NVIDIA GeForce GT 650M operating system:

windows 7

ASUS N46EI321VZ-SL (Gray Black) - 6999

Affiliation: ASUS N46 Series Screen size: 14 inches 1366x768 CPU model: Intel Core i5 3210M

CPU Frequency: Memory capacity: 4GB DDR3 1600MHz Hard disk capacity: 750GB 5400 rpm, SATA

Graphics chip: NVIDIA GeForce GT 650M INTEL GMA HD 4000 Operating system: Windows 7

Dell Inspiron Inspiron 14R Turbo (INS14TD-1728)--6999

Affiliation: Dell Inspiron 14R Tur Screen size: 14-inch 1600x900 CPU model: Intel Core i7

3612QM CPU Frequency: Memory Capacity: 8GB DDR3 1600MHz Hard Disk Capacity:

1TB 5400 rpm, SATA graphics chip: NVIDIA GeForce GT 640M+HD 4000 Operating system: Windows 7

Dell's ultrabook is lightweight, and the heat dissipation is very good. Finish p apples.

The budget is very good.,It's a good configuration to be able to choose.,I don't know what application you're mainly working on? I can help you see it according to your usage requirements