Windows XP/Vista/Windows 7
Processor: Intel Pentium 4 2.0 GHz and up
Memory: 1 GB RAM
Graphics: DirectX 9.0c/Shader3.0 and up supported (operation on-board is not guaranteed)
Video: NVIDIA GeForce 6600 and up (except for NVIDIA GeForce 7300), VRAM: 256MB and up (operation sharing with main memory is not guaranteed) or ATI Radeon X1600 and up VRAM: 256MB and up.
Hard Drive: 4.5 GB free hard drive space
Sound: DirectSound, DirectX9.0c Compatible Audio
Other Requirements: Online play requires software installation of and log-in to Games For Windows – LIVE

Super Street Fighter IV Arcade Edition, brings the definitive vision of
Street Fighter to the PC. The follow-up to the critically acclaimed
Super Street Fighter IV will further redefine the fighting game genre
with classic 2D Street Fighter fighting action, a host of new and
returning characters, beefed up online modes, and more.

Super Street Fighter IV Arcade Edition features a roster of 39
characters. This includes characters from the original Street Fighter
IV such as Ryu, Chun-li, El Fuerte, and Rufus, while adding the 10
characters from Super Street Fighter IV and 4 new characters,
including classic combatants Yun, Yang, and Evil Ryu as well as the
all-new Oni.

Beyond characters, Super Street Fighter IV Arcade Edition adds all-new
balancing, better online functionality, and the fully-featured Replay
Channel, on the PC for the first time.

Features:

New Playable Characters: Four new challengers enter the ring: Yun,
Yang, Oni and Evil Ryu.

Updated Character Balancing: Features all new character balancing,
further refining gameplay.

Updated Replay Channel: Replay Follower: Be able to follow up to 5
separate player replays making it easier to find your favorite players
latest replay.

My Channel Advanced: Allows players to distribute their replay data to
up to 50 players.

Elite Channel: Watch replay data from elite players who have a rating
of 3000PP (Player Points) or more.

All playable SSFIV characters will be unlocked out of the box,
including Yun & Yang, Oni, and Evil Ryu.