I have not found any mention of a Radeon X1000; the closest I have found is mention of the X1000-series (X1300, X1650…) made in 2005. Pretty much any computer built in the last 2–3 years already has graphics literally ten times better built-in.
To answer your question, it is, but you should upgrade anyways. According to the benchmarks I found here, that HD 4200 is only slightly better than a colorblind monkey with a box of crayons. Seriously, I had better graphics capabilities on a 200MHz Pentium that I threw away 7 years ago! My old Netbook had graphics that were too meager to support most 3D games and even it scored overtwice as high (343 vs 140). Hell, I don’t think that card is even capable of running Windows 7, let alone many games!
Sorry to be so hard on your card, but it is truly last-century as far as performance. You could get something literally five times better for $40, and I strongly recommend you do so! You may be able to play Amnesia with your current card, but it will play a lot better with a card that is actually up to 21st-century specs.
Amnesia has pretty low system requirements; many modern games require far more, and I don’t want you to be disappointed. Many of the games I play would refuse to run (and might not even install) with that card.
Oh, and welcome to Fluther :)
@rebbel I’ve always loved that site. Very handy