Confused between precision m6400 and latitude e6430

I'm going to buy refurbed laptop ..
I'm photographer use to edit photos and sometimes videos too .
I want fast and durable laptop.
In which there is no technical fault .
If any body can help me to choose between these two;


dell precision m4600
2.30 2820qm corei7 2nd gen
4gb ram
320gb hard drive
dvd-rw
wifi
dual graphic intel hd 3000 & nvidia quadro 1000m 2gb graphic card

Vs

Latitude E-6430
Core i5 (3rd Gen) 3210M / 2.5 GHz
Number of Cores Dual-Core
Cache 3 MB
RAM
Memory Speed 1600 MHz
Configuration Features 1 x 4 GB
STORAGE
Optical Drive DVD±RW
Read Speed 8
Technology DDR3 SDRAM
Speed 1600 MHz
DISPLAY
Resolution 1368 x 768 ( HD )
Widescreen Display : Yes
HARD DRIVE
500GB
AUDIO & VIDEO
Graphics Processor Intel HD Graphics 4000

 

M4600 no doubt since you will be editing photos and videos.

Quad core i7 vs dual core i5
Decent dedicated graphics vs integrated graphics
15.6" screen vs 14" screen
1920x1080 resolution vs 1366x768
Ability to have up to 3 drives
Can upgrade up to 32GB RAM

 

You mean 6400


Sent from my iPhone using Tapatalk

 

The 6400 doesn't have a 2820QM. He probably made a typo in the thread title.