If you want to save a bit go with the first one,the 2nd one has a better video card.Both will play games with no problems at 1080p but the 2nd one will get some more fps due to the video card it has.Anyways both under 900$usd,just all upon you on what to choose.I would proably go with the 2nd one if my budget was $900.Though keep in mind that these computers come with the monitor so your going to have to use one you already have or get one separate but they come with a mouse and keyboard.
My Computer
Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
Windows 10 64bit
CPU
AMD Phenom II X4 925 (Deneb)(2.8GHz) OC 3.4GHz
Motherboard
M5A78L-MLX Plus
Memory
Corsair Vengeance DDR3 4GBX2 (8192MB)
Graphics Card(s)
XFX HD 6870 1GB (OC)- 940MHz core, mem 1150MHz
Monitor(s) Displays
Vizio 26' 1920x1080 / Acer 1336x768
Screen Resolution
1920x1080 60Hz /1336x768
Hard Drives
Kingston Digital 60GB SSDNow V300/500gb HDD Western Digital 7200rpm (/WD 160GB HDD 7200rpm
Honestly. even if your not tech savy building a computer is extreamly easy and i even know some one who if you give the specs you want and a price range will give you a list of links from new egg to build it, along with new eggs videos on how to build your own pc its easy, i mean they have it so simple that parents can do it for their kids like nothing! I know i just built one for my self
My Computer
Computer Manufacturer/Model Number
Custom Build
OS
Windows 7 Ultimate
CPU
AMD A6 3650 2.6 GHz
Motherboard
ASRock A55M-HVS
Memory
8 Gigs
Graphics Card(s)
Radeon HD 6870
Monitor(s) Displays
42" Dynex Screen
Screen Resolution
1360x768
Hard Drives
60 GB OCZ SSD - Sata III 2.5"
150 GB HDD
250 GB HDD
PSU
Raidmax RX-500AF
Case
Rosewill Blackbone Black Steel
Cooling
4 Fans
Internet Speed
6 mbs
Other Info
Freshly put together, my first build, my own hard earned cash, an im 17.