I'm trying to decide between these two computers. Which would be better for gaming? Thanks!
$649
Model Mercenary MK-300
Processor AMD Athlon™ 64 X2 6400+ Black Edition 3.2GHz dual-core
Motherboard ASUS M3A Socket AM2 AMD 770 chipset
Memory Crucial DDR2 800MHz 2GB (2x1GB)
Hard Drive Western Digital 320GB SATA
Graphics Sapphire ATI Radeon HD 2600 PRO 512MB DDR2
Audio Onboard High Definition 8-channel
Optical Drive 20X DVD-writer SATA
Chassis Antec New Solution NSK4480B Mid Tower
Power Supply 380W PSU
$779
Model Mercenary MC-400
Processor Intel Core 2 Duo E6750 2.66GHz dual-core
Motherboard ASUS P5K-SE Socket 775 Intel P35 chipset
Memory Crucial DDR2 800MHz 2GB (2x1GB)
Hard Drive Western Digital 500GB SATA
Graphics Galaxy NVIDIA GeForce 8600GT 512MB DDR2
Audio Onboard High Definition 6-channel
Optical Drive 20X DVD-writer SATA
Chassis Antec New Solution NSK6580
Power Supply 430W PSU
$649
Model Mercenary MK-300
Processor AMD Athlon™ 64 X2 6400+ Black Edition 3.2GHz dual-core
Motherboard ASUS M3A Socket AM2 AMD 770 chipset
Memory Crucial DDR2 800MHz 2GB (2x1GB)
Hard Drive Western Digital 320GB SATA
Graphics Sapphire ATI Radeon HD 2600 PRO 512MB DDR2
Audio Onboard High Definition 8-channel
Optical Drive 20X DVD-writer SATA
Chassis Antec New Solution NSK4480B Mid Tower
Power Supply 380W PSU
$779
Model Mercenary MC-400
Processor Intel Core 2 Duo E6750 2.66GHz dual-core
Motherboard ASUS P5K-SE Socket 775 Intel P35 chipset
Memory Crucial DDR2 800MHz 2GB (2x1GB)
Hard Drive Western Digital 500GB SATA
Graphics Galaxy NVIDIA GeForce 8600GT 512MB DDR2
Audio Onboard High Definition 6-channel
Optical Drive 20X DVD-writer SATA
Chassis Antec New Solution NSK6580
Power Supply 430W PSU