#1

What makes Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) better Choice

Screen Size 15.6 Inches 15.6 Inches 14 Inches 15.6 Inches
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic),HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) has 11.43% bigger screen size
Numeric Keyboard Yes Yes No No
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) has Numpad which is helpful for spreadsheets and accounts applications whereas Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic),HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) doesn't
#2

What makes HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic) better Choice

Processor Speed 2.5 GHz with 3.1 GHz Turbo Boost 2.4 GHz with 0 MHz Turbo Boost 2.5 GHz with 0 MHz Turbo Boost 2.4 GHz with 0 MHz Turbo Boost
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) has 4.17% faster processor speed.
Screen Size 15.6 Inches 15.6 Inches 14 Inches 15.6 Inches
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic),HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) has 11.43% bigger screen size
Numeric Keyboard Yes Yes No No
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) has Numpad which is helpful for spreadsheets and accounts applications whereas Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic),HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) doesn't
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic)
HP 15 D103TX

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#3

What makes Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) better Choice

Processor Speed 2.5 GHz with 3.1 GHz Turbo Boost 2.4 GHz with 0 MHz Turbo Boost 2.5 GHz with 0 MHz Turbo Boost 2.4 GHz with 0 MHz Turbo Boost
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) has 4.17% faster processor speed.
Touch Screen No No Yes No
Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) has $$$ whereas HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic),HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) doesn’t
Screen Resolution 100 ppi 100 ppi 112 ppi 100 ppi
Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) has 12.00% higher screen resolution.
#4

What makes HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) better Choice

Screen Size 15.6 Inches 15.6 Inches 14 Inches 15.6 Inches
HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic),Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic),HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB) has 11.43% bigger screen size

Feature Comparison of HP 15 D103TX (Ci5/ 4GB/ 500GB/ DOS/ 2GB Graphic) Vs Lenovo IdeaPad G510 59 398530 (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) Vs Lenovo Essential G400S 59-383679 Touch (Ci3/ 4GB/ 500GB/ Win8/ 2GB Graphic) Vs HP Pavilion G6 2105TX (Ci3/ 4GB/ 500GB/ Win7 HB)

Processor
Processor Name Intel Core i5-4200M Processor (4th Generation) Intel Core i3-4000M Processor (4th Generation) Intel Core i3-3120M Processor (3rd Generation) Intel Core i3-3110M Processor (3rd Generation)
Processor Speed 2.5 GHz with 3.1 GHz Turbo Boost 2.4 GHz with 0 MHz Turbo Boost 2.5 GHz with 0 MHz Turbo Boost 2.4 GHz with 0 MHz Turbo Boost
Number of Core 2 Cores 2 Cores 2 Cores 2 Cores
Processor Cache 3 MB 3 MB 3 MB 3 MB
Processor chipset Intel Mobile HM86 Express Intel Mobile HM76 Express Mobile HM76 Express
Instruction Set 64-bit 64-bit 64-bit 64-bit
Memory Bandwidth 25.6 GB/s 25.6 GB/s 25.6 GB/s 25.6 GB/s
Number of threads 4 Threads 4 Threads 4 Threads 4 Threads
RAM
RAM Included 4 GB, DDR3 4 GB, DDR3 4 GB, DDR3 4 GB, DDR3
RAM Possible 16 GB 16 GB 16 GB 8 GB
RAM Slots 2 (Unused Slot - 0) 2 (Unused Slot - 1) 2 (Unused Slot - 0)
Storage
Hardware Interface SATA SATA SATA SATA
RPM 5400 RPM 5400 RPM 5400 RPM 5400 RPM
Storage Capacity 500 GB HDD 500 GB HDD 500 GB HDD 500 GB HDD
Display
Screen Size 15.6 Inches 15.6 Inches 14 Inches 15.6 Inches
Screen Resolution 1366 x 768 Pixels, 100 ppi 1366 x 768 Pixels, 100 ppi 1366 x 768 Pixels, 112 ppi 1366 x 768 Pixels, 100 ppi
Screen Type Diagonal HD BrightView LED-backlit Display HD LED-backlit Display HD LED with 10-Point Multitouch Display LED Backlit Widescreen
Graphic Processor 2 GB DDR3 Intel HD Graphics 4600, NVIDIA GeForce 820M 2 GB DDR3 AMD 2GB 2 GB DDR3 GeForce GT 720M 2 GB DDR3 AMD 1GB
Optical Drive
Optical Drive Yes, SuperMulti DVD RW Drive with Dual Layer Support Yes, DVD RW Drive Yes, DVD RW Drive Yes, SuperMulti DVD RW Drive with Dual Layer Support
Read/Write Speed 8x 8x 8x 8x
Platform
Operating System DOS Windows 8 Windows 8 Windows 7 Home Basic
System Architecture 64-bit 64-bit 64-bit 64-bit
Input
Webcam Yes, HP TrueVision HD Webcam (front-facing) with integrated digital microphone Yes, 0.3 Megapixel Yes, 720p HD Webcam Yes, 0.3 Megapixel
Pointer Device Touchpad with multi-touch gesture support Multitouch Touchpad Touchpad Touchpad with Multi Gesture Support
Keyboard Full-size textured Island Style Keyboard AccuType Keyboard AccuType Keyboard Full-size Textured Island Keyboard
Backlit KeyBoard No No No
Audio
Internal Mic Yes Yes Yes Yes
Speakers Yes, Dual Speakers, HD Audio Yes, Stereo speakers with Dolby Advanced Audio Yes, Stereo Speakers Yes, Altec Lansing Speakers
Communication
Ethernet Integrated 10/100 Mbps Ethernet LAN Integrated 10/100 Mbps Ethernet LAN Integrated 10/100 Mbps Ethernet LAN 10/100 LAN
Wireless LAN Yes, IEEE 802.11b/g/n Yes, IEEE 802.11b/g/n Yes, IEEE 802.11b/g/n Yes, IEEE 802.11b/g/n
Bluetooth Yes, v4.0 Yes, v4.0 Yes, v4.0 Yes, v4.0
Power
Power Supply 90 W AC Adapter 65 W AC Adapter
Battery Cells 4 Cells 6 Cells 4 Cells 6 Cells
Power Backup Upto 4 hours Upto 6 hours
Ports
USB Ports 2 x USB 2.0, 1 x USB 3.0 1 x USB 2.0, 2 x USB 3.0 1 x USB 2.0, 2 x USB 3.0 2 x USB 3.0, 1 x USB 2.0
Audio Jack Yes Yes Yes Yes
RJ45 LAN Yes Yes Yes Yes
HDMI Port Yes Yes Yes Yes
VGA Port Yes Yes Yes Yes
Multi Card Slot Yes Yes Yes Yes
Other Ports 1 x Headphone Out Jack, 1 x Microphone-in Combo Jack 1 x Headphone Out / Microphone-in Combo Jack 1 x Headphone Out / Microphone-in Combo Jack
External Mic Yes No Yes Yes
General
Weight 2.5 Kg 2.6 Kg 2.5 Kg 2.47 Kg
Model Name 15 Essential Pavilion
Lifestyle Everyday Use Entertainment Entertainment
Model ID D103TX G510 G400s G6-2105TX
Dimensions 378 x 259 x 28.1 mm 377 x 250 x 34 mm 349 x 244 x 26.9 mm 373.8 x 245.1 x 36.3 mm
Part Number G2G48PA 59-398530 59-383679 G6-2105TX
Others Kensington Lock Slot Security and Support (Lenovo Companion, Lenovo Support, McAfee Internet Security, Lenovo Cloud Storage by SugarSync) Protect Smart, Coolsense, Kensington Lock Slot
Folded Height 28.1 mm 34.0 mm 26.9 mm 36.3 mm
Series G Series G Series G6 Series