HIS Radeon 3870 512MB x2

хммм) ну карта сама ватт на 350 потянет)) Ну в принципе если БП новый тогда должно хватить)) А что касается вашего риторического вопроса-раз на халяву, то брать стоит))

ATI Radeon HD 3870 X2 System Requirements
PCI Express® based PC is required with one dual-width X16 lane graphics slot available on the motherboard
550 Watt or greater power supply with two 2x3-pin PCIe® power connectors required (750 Watt and four 6-pin connectors for dual ATI CrossFireX™)
For enhanced performance with ATI Overdrive™1, a power supply with one 2x3-pin and one 2x4-pin PCIe ® power connector is required
Certified power supplies are strongly recommended http://ati.amd.com/online/certifiedpsu/index.html
Certified system cases with good airflow and cooling are recommended http://ati.amd.com/certifiedcases
1GB of system memory recommended
Installation software requires CD-ROM drive
DVD playback requires DVD drive
Blu-ray™ / HD DVD playback requires a Blu-ray / HD DVD drive

1 Warranty does not cover damages to this product caused by overclocking

ATI Radeon™ HD graphics chips have numerous features integrated into the processor itself (e.g., HDCP, HDMI, etc.). Third parties manufacturing products based on, or incorporating ATI Radeon HD graphics chips, may choose to enable some or all of these features. If a particular feature is important to you, please inquire of the manufacturer if a particular product supports this feature. In addition, some features or technologies may require you to purchase additional components in order to make full use of them (e.g. a Blu-Ray or HD-DVD drive, HDCP-ready monitor, etc.).

По производительности приблизительно соответствует Radeon HD 4850, GeForce 9800 GTX+, GeForce GTS 250.
А брать или нет -- это уж тебе решать.

смотрю какой у тебя камп одноядерный или 2-х ядерный какая материнская плата у меня 350ватт RADEON HD3650 512 НОРМАЛЬНО ВСЕ ИДЕТ ПОСМОТРИ НА САЙТЕ www.dns-shop.ru