I built two pcs on a website, not sure which one to get?

I'm 15 and I recently made two different pcs on a website called cybertronpc. I'm not sure which one to get. I only plan on doing some light gaming and school work. The $543.43 option has a more powerful processor but less ram while the $546.91 option has more ram and a less expensive processor. Which one would run games better? What could use improvement? Constructive criticism is accepted. If it helps my ultimate budget is $600. Although the 2nd is better than the first, what is the functional use of the PCs?
The selection of parts used has them at a similar quality level to off-the-shelf branded PCs.
If you want this low quality part set, you can buy one built for the same price or less.
2nd only gets you an Athlon X4 760K and GT 720, 8GB RAM 1TB HDD.
CPU is almost top end or is top end of that motherboard. No real upgrade possible.
Motherboard low rated by Newegg customers, everything basic. One graphics card slot, low end audio, ethernet, no SATA III, No USB 3.0.
Graphics card is equal to Intel integrated HD 4600
Power supply below average in performance, and lower wattage ones of good brands are superior in modern PCs.
Computer case is top mount power supply and weak air flow just like branded PCs
Will look around Newegg.com for a pre-built at better performance.
Lowest price of better performance:
http://www.newegg.com/...6883798342
$429 delivered Lenovo.
https://www.cpubenchmark.net/...u_list.php
Lenovo H50-55 (90BG0022US) APU
A8-7600 14% stronger CPU
8GB 1TB DVDRW Windows 8.1 64-Bit - Same
R7 7600 > 50% stronger graphics
Although power supply is low performance, so is your selection.
This includes wireless internet and bluetooth, keyboard and mouse, better motherboard with 2 x USB3 and 2xUSB2 in back and likely has SATA III.
Better than or equal to in every way and other difference is an even lower performance power supply replaced with $25 after rebate in do-it yourself, and not as pretty plastic.
Will look for best under $600, but $429 delivered beats $531.
Look for these at Newegg.com
$520 CyberpowerPC Ultra 2202 FX-8320 8GB 1TB Windows 8.1 64-bit free game offer DVDRW R7 250 2GB
$528 CyberpowerPC Xtreme H135 Intel Core i5 4460 4GB 1TB HDD R7 240 2GB Windows 10 Home 64-bit
$550 CyberpowerPC Ultra 2165 FX-6300 8GB 1TB Windows 8.1 64-Bit free game offer R7 250 2GB
$558 CyberpowerPC Ultra 2228 FX-6300 8GB 1TB Windows 10 Home 64-bit Release Date: 07/29/2015 R7 360 2 GB

$560 SYBER PC Syber VAPOR A-B Athlon X4 840 4GB 500GB Windows 8.1 64-Bit Radeon R9 270 2 GB
$626 CyberpowerPC Ultra 2210 FX-8320 8GB 1TB Windows 8.1 64-Bit R9 270 2 GB

If about gaming, compare graphics cards
http://www.game-debate.com/...eon-r9-270
http://www.videocardbenchmark.net/gpu_list.php
To do a custom, check CyberpowerPC.com against Cybertron
Power supply reviews: http://www.realhardtechx.com/index_archivos/Page2293.htm
Parts shopping, compatibility
http://pcpartpicker.com/parts/partlist/
You may be able to see cost of build for each PC and if can't find computer case, can estimate.
Newegg often shows a look inside view by clicking for more pics at 3 dots
Newegg collects sales tax California, Indiana, New Jersey and Tennessee