Is a video card worth buying if it is only backward compatible

[Zlot]

Hello,
I recently bought an Asus Essentio CM5675-07 which has an Intel i5-650 3.20g processor and 8gigs of RAM. I bought it for gaming but found out, after it arrived, it has a built in video card. I know this sucks for gaming so I ordered a new power supply and a 1gig video card. I know my PC will have to run this "backwards compataible." I keep seeing stuff about "bottlenecking." Is my computer gonna do that? Is it gonna run good with the new card eventhough it's not up to date for PCI 2.0?

 

[kingnoobe]

Just googled that it shows under specs that you have 1 (total) / 1 (free) x PCI Express 2.0 x16.

So you'll be fine. The only thing I saw a problem with is the psu and it looks like you're taking care of that.

 

[dalta centauri]

Depends mainly on the video card, seeing as it's a 1gb model it shouldn't bottleneck (Or at least it won't show a bottleneck).
What's the models number though: Radeon, Nvidia?