Slim Tower Gaming PC Held Back By Its Graphics Card and Power Supply

ASUS ROG G20AJ Slim Gaming Desktop PC

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The Bottom Line

Jun 19 2015 - The ASUS ROG G20AJ is a decent system that is held back due to some questionable design decisions. It is compact and runs very quiet which is great for anyone using it in a home theater setup for PC gaming. The problem is that it relies too much on some older graphics which limit its performance and the poor power supply design. It is also not something to purchase if you want to upgrade it in the future thanks to its infuriating design trying to access anything inside.


  • Runs Very Quiet
  • Attractive Design With Custom Lighting
  • Good Mouse and Keyboard Included


  • Nearly Impossible to Upgrade Internal Components
  • Dual Power Supply Design
  • Older Graphics Card


  • Intel Core i5-4460 Quad Core Desktop Processor
  • 8GB PC3-12800 DDR3 Memory
  • 1TB 7200rpm SATA Solid State Hybrid Drive
  • Dual-layer DVD+/-RW Burner
  • NVIDIA GeForce GTX 750 Graphics Card with 2GB GDDR5
  • HDA 7.1 Audio Support
  • Gigabit Ethernet, 802.11ac Wireless, Bluetooth
  • Four USB 3.0, Four USB 2.0, HDMI, DVI, VGA
  • 13.38" x 4.09" x 14.09"
  • Windows 8.1

Review - ASUS ROG G30AJ-US023S

Jun 19 2015 - The ASUS ROG G20AJ is what the company likes to call its compact gaming console. It is a small slim tower desktop gaming system similar to the Alienware X51. The system is roughly a quarter of the size of your standard desktop tower system yet features full size desktop components for equivalent performance. It is a bit larger than than the Alienware system and uses an external power supply as well which I will talk about more later. The design features a sort of split black tower that features red band through the middle of it with accent lighting that can be adjusted to just about any color.

Powering the ROG G20AJ is the fourth generation Intel Core processors. For this mid-range model, it is a Core i5-4460 quad core processors. While this is not the fastest processor available, it provides a solid level of performance particular for those using the system for gaming. There is a more expensive version that comes with a Core i7 if you need the extra performance. A newer G20 model with updated 5th generation Core processors but the performance difference is likely not going to be very significant when it comes to the processors. It is matched up with 8GB of DDR3 memory to provide a smooth overall experience with Windows. The memory in the system can be upgraded but users will not likely upgrade it due to access issues.

Storage for the system is handled by a solid state hybrid drive that combines a terabyte worth of storage space with 8GB of solid state memory for caching. This helps improve the performance when booting up the system or waking it up plus some frequently used programs but the performance is still no where near the level of a full SSD. If you want to add more space, there is an available 2.5-inch drive slot inside of the computer but it is near impossible to get to that internal upgrades are not really worth it. Rather, there are four USB 3.0 ports that can be used with external hard drives. There is slim style dual layer DVD burner in the system if you need to playback or record CD or DVDs.

Now the ROG G20 is designed for gaming and thus a dedicated graphics card is a necessity. This version features a NVIDIA GeForce GTX 750 which is a fairly low end video card these days. It generally can support most games up to the 1920x1080 resolution level but often at medium detail levels for the most modern games. Now the system can support faster graphics cards and the newer updated system should come with the GTX 900 series cards. The problem is one again that accessing the internals is very difficult and higher level graphics cards require a different dual power supply unit from ASUS which is not supplied here meaning you are pretty much stuck with the existing card.

Pricing for the ASUS ROG G20AJ-US023S as reviewed is around $850. This price is likely to drop with the newer version being released soon. This price is nearly the same price as the Alienware X51 if it came with a similar graphics card. Dell tends to sell the system for $1000 though with a faster GTX 960 graphics card. The Dell also has the benefit of easier to access internals even though there is almost no space inside to do much and a single unified power supply unlike the two different versions of the ASUS. One downside to the Dell is that a keyboard and mouse is not included. There is also the Cyberpower Zeus Mini system that is available for $900 that offers similar setup but with the GTX 960 graphics. The one disadvantage the Zeus Mini has though is a lack of wireless networking.

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