heres the spec of my old pc guys
acer veriton x490g
Technical Specifications
Operating System windows 7 ultimate
Processor Intel� Core� i5-550 processor ( 3.5GHz, 4MB Cache, 1333MHz FSB )
Chipset Intel� H57 Express Chipset
Memory 2GB of DDR3 1333 MHz SDRAM
Hard Drive 500GB Serial ATA II hard disk
Optical Drive 16X DVD SuperMulti burner
Card Reader Multi-in-1 card reader, Secure Digital� (SD) Card, miniSD� Card, microSD�, MMC Card�, Memory Stick�
Drive Bays One internal 3.5"drive bays
Graphics Intel HD graphics
Floppy drive None
Audio Embedded high-definition audio with 5.1-channel, S/PDIF support
Networking Gigabit Ethernet , Wake-on-LAN ready
Interface Ports Front: Four USB 2.0 ports, Multi-in-1 card reader, High-definition headphone and microphone jacks
Rear: four USB 2.0 ports, IEEE 1394 port (6-pin), PS/2 keyboard and mouse ports, Ethernet (RJ-45) port, Five audio ports, S/PDIF port, All display ports on the graphics card
Expansion Slots PCI Express� 2.0 x16 - 1 slot, PCI Express� 2.0 x 4 - 1slot
Included Software Acer eRecovery Management
Dimensions 90 (W) x 243 (D) x 173 (H) mm
Power Supply 220 watts
any recommended gpu for dota 2 in this type of pc? thanks in advance