Ordering tonight NEW RIG

this is what i have come to my original budget was £600 but my dad aloud me to strech to £638 or 48 cant remember anyway this is my final rig any opinions on this please state ie advice etc   thankyou

Case STYLISH PIANO BLACK ENIGMA MICRO-ATX CASE + 2 FRONT USB

Processor (CPU) Intel® Core™i5 Quad Core Processor i5-3570 (3.4GHz) 6MB Cache

Motherboard ASUS® P8H61-MX USB3/SI: uATX, USB 3.0, SATA 3.0Gb/s

Memory (RAM) 8GB SAMSUNG DUAL-DDR3 1333MHz (2 X 4GB)

Graphics Card 2GB AMD RADEON™ HD7870 - DVI,HDMI,2 mDP - DX® 11, Eyefinity 4 Capable

Memory - 1st Hard Disk 500GB 3.5" SATA-III 6GB/s HDD 7200RPM 16MB CACHE

1st DVD/BLU-RAY Drive 24x DUAL LAYER DVD WRITER ±R/±RW/RAM

Power Supply 450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan

Processor Cooling INTEL SOCKET LGA1155 STANDARD CPU COOLER

Sound Card ONBOARD 8 CHANNEL (7.1) HIGH DEF AUDIO (AS STANDARD)

Operating System Genuine Windows 7 Home Premium 64 Bit w/SP1 - inc DVD & Licence (£79)

will this be fine for games at high to ultra ie BF3 GTA V COD SKYRIM ETC ARMA 2 and 3