PCPartPicker part list / Price breakdown by merchant
CPU: Intel - Pentium G4560 3.5GHz Dual-Core Processor ($78.00 @ shopRBC) Motherboard: ASRock - B250M-HDV Micro ATX LGA1151 Motherboard ($74.50 @ Vuugo) Memory: Kingston - 8GB (1 x 8GB) DDR4-2133 Memory ($64.99 @ Memory Express) Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($64.50 @ Vuugo) Video Card: MSI - Radeon RX 570 4GB ARMOR OC Video Card ($247.68 @ shopRBC) Case: Rosewill - RANGER-M MicroATX Mini Tower Case ($29.99 @ Newegg Canada) Power Supply: Corsair - CXM 450W 80+ Bronze Certified Semi-Modular ATX Power Supply ($44.98 @ NCIX) Total: $604.64 Prices include shipping, taxes, and discounts when available Generated by PCPartPicker 2017-05-25 13:11 EDT-0400
you can throw in an ssd since this is only 600ish CAD
the g4560 performs almost exactly the same as the i3 and the b250 motherboard gives you a better upgrade path.