Juice FX system requirements state that you will need at least 4 GB of RAM. An Intel Core i5-650 CPU is required at a minimum to run Juice FX. The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 670. In terms of game file size, you will need at least 100 MB of free disk space available.
Juice FX will run on PC system with Windows 7 and upwards.