i can get these computers for the same price they are similar but which one is better

Base Features
Processor Type Intel Core 2 Quad Processor Q6600
Processor Speed 2.40GHz
RAM 3072MB PC2-5300 DDR2 SDRAM
Hard Drive Speed/Capacity 400GB 7200RPM Serial ATA hard drive
Optical Drives SuperMulti DVD Burner w/ LightScribe
Graphics NVIDIA GeForce 8500 GT
Pre-loaded Operating System Genuine Windows Vista Home Premium
Graphics
Dedicated Video Memory Yes
Shared Video Memory Up to 1791MB shared video memory
TV Tuner NTSC TV Tuner and FM tuner
Video Memory 512MB
HDCP Compliant Not Applicable
Native Screen Resolution Not Applicable
Screen Size/Type Not Applicable
Audio
Audio Output
Digital Input Yes
Digital Output Yes
Integrated Microphone No
Line Out Yes
Line-In input Yes
Microphone Input Yes
Sound Card High Definition Audio
Speaker Wattage Not Applicable
Speakers No
Networking
Ethernet Port 10/100/1000Mbps Network Interface
Integrated Bluetooth No
Integrated WiFi Wireless LAN 802.11b/g
Inputs/Outputs
Card Reader 15-in-1 memory card reader
Component Output No
Composite Output No
DVI Output Yes
E-SATA No
FireWire (IEEE 1394) 1 front 1 back
HDMI No
Keyboard HP wireless keyboard with extended range
Modem 56K Modem
Mouse
Remote HP Media Center remote control
S-Video Output Yes
USB 2.0 2 Front 4 Back
VGA Output Yes
Webcam No
Computing Features
Available AGP Slots Not Applicable
Available Hard Drive Bays 2 internal 3.5inch (one available)
Available Memory Slots 4 total (occupied)
Available Optical Bays 2 external 5.25inch (one available)
Available PCI Slots 1PCI Express x1 slots (occupied)
Available PCI-E Slots 2 PCI Express x16 slot (one available)
Power Supply Not Applicable
Processor Cache 2x4MB L2 Cache
Removable Storage HP Pocket Media Drive Bay
System Bus 1066MHz Front Side Bus

OR


Processor Type Intel Core 2 Quad Q6600
Processor Speed 2.40GHz
RAM 3GB PC2-5300 DDR2 SDRAM
Hard Drive Speed/Capacity 500GB 7200RPM SATA
Optical Drives 16X Dual-Layer DVD Burner w/ LightScribe
Graphics NVIDIA GeForce 8400 GS Video Card
Pre-loaded Operating System Windows Vista Home Premium
Graphics
Dedicated Video Memory Yes
Shared Video Memory Up to 1535MB shared video memory
TV Tuner NTSC TV Tuner
Video Memory 256MB
HDCP Compliant Not Applicable
Native Screen Resolution Not Applicable
Screen Size/Type Not Applicable
Audio
Audio Output
Digital Input Yes
Digital Output Yes
Integrated Microphone No
Line Out Yes
Line-In input Yes
Microphone Input Yes
Sound Card High Definition Audio
Speaker Wattage Not Applicable
Speakers No
Networking
Ethernet Port 10/100/1000Mbps Network Interface
Integrated Bluetooth No
Integrated WiFi 802.11b/g Wireless LAN
Inputs/Outputs
Card Reader 15-in-1 memory card reader
Component Output No
Composite Output Yes
DVI Output Yes
E-SATA No
FireWire (IEEE 1394) 1 front 1 back
HDMI Yes
Keyboard HP wireless keyboard with extended range
Modem 56K Modem
Mouse
Remote HP Media Center remote control
S-Video Output Yes
USB 2.0 2 Front 4 Back
VGA Output Yes
Webcam No
Computing Features
Available AGP Slots Not Applicable
Available Hard Drive Bays 2 internal 3.5 inch (one available)
Available Memory Slots 4 total (occupied)
Available Optical Bays 2 external 5.25 inch(one available)
Available PCI Slots 1 PCI Slot (occupied)
Available PCI-E Slots 1 PCI Express x16 slot (occupied)
Power Supply Not Listed
Processor Cache 2x 4MB L2 Cache
Removable Storage HP Pocket & Personal Media Drive bays
System Bus 1066MHz Front Side Bus


i need to find out which one is better, i have an hdmi monitor