CPU: Intel Core i3 2 120 (box) Main frequency: 3300MHz Reference price: 770.
New kernel, new architecture, low power consumption, three-level cache.
Motherboard: Gigabyte GA-H6 1M-S2-B3 Reference price: ￥499.
Or: Microsatellite H6 1M-E33(B3)
Graphics card: sotai GTX550Ti 1GD5 thunder version PB GDDR5 reference price: 788.
Or: microsatellite R6 790 Twin Frozr II 920/4200mhz1g/256bits GDDR 5 899.
Memory: weigang 4GB DDR3 1333 (colorful) reference price ￥ 120.
Hard disk: Seagate 500G 7200 16M 500 yuan (approx. )
(The price of hard disk is as high as 55%, which is priced by the seller. )
Power supply: Delta Power Smart450 rated 450W active reference price ￥269.
Or: Antec)VP 450P rated 450W 120mm mute fan active ￥279.
(Chassis optional, all first-line brands)
The total amount is about 3000 yuan. I hope the above reference will help you.