Official PS4 specifications:
Main Processor:
Single-chip custom processor
CPU: x86-64 AMD 'Jaguar' 8 cores
GPU: 1.84 TFLOPS, AMD next-generation Radeon™ based graphics engine
Memory:
GDDR5 8GB
Hard Disk Drive:
Built-in
Optical Drive (read only):
BD 6xCAV
DVD 8xCAV
I/O and communication:
Super-Speed USB (USB 3.0)
AUX
Ethernet (10BASE-T, 100BASE-TX, 1000BASE-T)
IEEE 802.11 b/g/n
Bluetooth® 2.1 (EDR)
AV output:
HDMI
Analog-AV out
Digital Output (optical)