A 3 year old should have no compatibility issues - assuming the card maker has provided drivers for your new OS. Since you are not a gamer, if me, I would use the old card along with the integrated solution.
That said, if you want a new card, look here,
Toms Hardware, Best Graphics Card for the Money, June 2013.
And speaking of your OS, I don't see an operating system listed. A common mistake is some users assume they can use their old Windows license on a new computer or when upgrading their motherboards. Understand only a "boxed" full
Retail license can be transferred to a new computer (or upgraded motherboard). It is
illegal to use an OEM license that came with or was purchased for one computer on another computer. A disk “branded” with a computer maker’s brand name, or is labeled with “OEM/System Builder”, “Upgrade”, “Academic Edition”, or "For Distribution with a new PC only", is
not transferable to a new PC (or upgraded motherboard) under
any circumstances. These OEM licenses are inextricably tied to the "original equipment". So if that is the case, I recommend 64-bit Windows 7 or Windows 8, or one of the many free Linux alternatives. Just ensure it is 64-bit since you have selected 16Gb of RAM.
Note I am just the messenger stating the facts. This is all in the EULAs we agreed to abide by when we first used our OEM software on the original computers.