Sony PS4 specs

Sony PS4 rumoured specs:

TLDR SPECS

CPU

•  4 core (2 core pairs) 3.2 GHz AMD x86 (Steamroller)
•  aggregate, 10x PS3 PPU performance
•  512 KByte L2 per core pair
•  64 bit pointers

GPU

• AMD R10x series GPU @ 800 MHz (Tahiti)
•  aggregate 10x RSX performance, 1.84 TFlops
• DX”11.5″
• cheap branching
• 18 compute units, focus on fine grained compute & tessellation

MEMORY:

• 2 GByte UMA, pushing for 4 GByte
• 192 GByte/ sec non-coherent access for e.g. GPU
• 12 GByte/ sec coherent access for CPU
• >50% longer memory latency for CPU/ GPU compared to PC!!!
• DXT is lowest bpp texture compression format

MEDIA:

• 50 GByte BD drive
• PCAV, between 3.3 and 8x BD, most likely clamped to 6x
• automatic background caching to HDD
• HDD SKU with at least 380 GByte
• downloadable games

EXTRA HARDWARE:

• video encoder/ decoder
• audio processing unit, ~200 concurrent MP3 streams
• HW zlib decompressor

http://www.vgleaks.com/world-exclusive-ps4-in-deep-first-specs/

It is estimated that PS4 is about 10 times more powerful than PS3.