It is recommended to consider the configuration of Intel, which is more stable than AMD's.
CPU I3 322 (boxed) 73 yuan
motherboard Huaqing B75 PRO3. 41 yuan
graphics card MSI HD775 1G D5 version 699 yuan
memory 4 GB 16. MHZ 189 yuan
Seagate hard disk 5 GB(5G/72 rpm /16M) 329 yuan
Chassis (including power supply) Jinhetian Weibo 121B 179 yuan
Keymouse ViewS Onic youpai CP125 youpai classic suit 4 yuan
speaker Edifier rambler R1U 2. speaker 65 yuan
The total price of the above accessories excluding monitors is about 2,3 yuan, which is no problem to meet your requirements. You can match them in the local electronic market, or buy them from Yixun. com and JD.COM Mall. Taobao's merchants are mixed, so it is not recommended.
If you prefer AMD's quad-core, recommend A8-56K (56RMB)+ Yingtai TA75MH2L motherboard (419RMB). The performance of the built-in graphics card is higher than that of GT63, which is close to 64. You can play the game you said, and you can save the money of the display first.
X4 9XX is not recommended, and the CPU with AM3 interface belongs to the obsolete backward architecture, and its power consumption and calorific value are relatively large.