I have lots of space on my MoBo and don't want to leave my 5450 to waste, even if it is low spec.
Set-Up=
Asrock Socket AM3+ 970 Extreme4 5200MT/S Motherboard
AMD FX8320 Black Edition 8 Core (3.5/4.0GHz, 8MB Level 3 Cache, 8MB Level 2 Cache, Socket AM3+, 125W, Retail Boxed)
Intel SSD 320 Series 40GB 9.5mm 2.5 inch SATA2 Solid State Drive for OS
WD 1TB 3.5 inch Internal Hard Drive - Caviar Blue Storage
HyperX FURY Series 8GB (2x 4GB) DDR3 1866MHz CL10 DIMM Memory Module Kit - White
Artic Blue 750W Quad 12v Rails (32 amp max per Rail) 80+ Plus Bronze Power Supply with 12cm Cooling Fan - Featuring - Molex - SATA - Floppy - 20/24 Pin & 4 Pin connections
Then the 5450, very likely to buy the R7 260X even if it's not crossfire-able with 5450.
Set-Up=
Asrock Socket AM3+ 970 Extreme4 5200MT/S Motherboard
AMD FX8320 Black Edition 8 Core (3.5/4.0GHz, 8MB Level 3 Cache, 8MB Level 2 Cache, Socket AM3+, 125W, Retail Boxed)
Intel SSD 320 Series 40GB 9.5mm 2.5 inch SATA2 Solid State Drive for OS
WD 1TB 3.5 inch Internal Hard Drive - Caviar Blue Storage
HyperX FURY Series 8GB (2x 4GB) DDR3 1866MHz CL10 DIMM Memory Module Kit - White
Artic Blue 750W Quad 12v Rails (32 amp max per Rail) 80+ Plus Bronze Power Supply with 12cm Cooling Fan - Featuring - Molex - SATA - Floppy - 20/24 Pin & 4 Pin connections
Then the 5450, very likely to buy the R7 260X even if it's not crossfire-able with 5450.