What FPS for these specs?

How much FPS do you guys think this computer could do? In 1v1? In 5v5? And in 8v8?

# Computer Features: 3D Graphics
# Processor: Up to 3.2 Ghz Intel Core i3 550
# Hard Drive Speed: 7200 RPM
# Hard Drive Capacity: 1TB Hard Drive Capacity
# Hard Drive Interface: SATA II
# System RAM: 4 GB, Expandable To 8 GB
# Memory RAM Type: DDR3; 2x2GB
# RAM Expansion Slots: 2
# Dedicated Graphics Memory: 512 MB
# Cache Memory Installed Capacity: 4MB L2 Cache
# Operating System: Windows 7 Home Premium 64-bit
# Optical Drive Type: DVD±RW/CD-RW Drive
# Input Type(s): PS/2, RJ-45
# Output Type(s): Audio, VGA
# DVI-D: 2 Ports
# IEEE 1394 (Firewire) Ports: 0
# USB 2.0 Ports: 8
# VGA Ports: 1
# Built-In Graphics Card Type: ATI Radeon HD 5450