• More on Sony’s Next-gen PS4 Specs Revealed

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    More on Sony's Next-gen PS4 Specs Revealed

    More on Sony’s Next-gen PS4 Specs Revealed

    Following our previous PlayStation 4, PS4, leaked specs, new information regarding the SoC devkit has surfaced. Below are all the details courtesy of VGLeaks.

    LIVERPOOL SOC

    • Custom implementation of AMD Fusion APU Architecture (Accelerated Processing Unit)
    • Provides good performance with low power consumption
    • Integrated CPU and GPU
    • Considerably bigger and more powerful than AMD’s other APUs
    PS4 Liverpool SoC Diagram

    PS4 Liverpool SoC Diagram

    CPU:

    • Orbis contains eight Jaguar cores at 1.6 Ghz, arranged as two “clusters”
    • Each cluster contains 4 cores and a shared 2MB L2 cache
    • 256-bit SIMD operations, 128-bit SIMD ALU
    • SSE up to SSE4, as well as Advanced Vector Extensions (AVX)
    • One hardware thread per core
    • Decodes, executes and retires at up to two instructions/cycle
    • Out of order execution
    • Per-core dedicated L1-I and L1-D cache (32Kb each)
    • Two pipes per core yield 12,8 GFlops performance
    • 102.4 GFlops for system

    GPU:

    • GPU is based on AMD’s “R10XX” (Southern Islands) architecture
    • DirectX 11.1+ feature set
    • Liverpool is an enhanced version of the architecture
    • 18 Compute Units (CUs)
    • Hardware balanced at 14 CUs
    • Shared 512 KB of read/write L2 cache
    • 800 Mhz
    • 1.843 Tflops, 922 GigaOps/s
    • Dual shader engines
    • 18 texture units
    • 8 Render backends

    Memory:

    • 4 GB unified system memory, 176 GB/s
    • 3.5 available to games (estimate)

    Storage:

    – High speed Blu-ray drive

    • single layer (25 GB) or dual layer (50 GB) discs
    • Partial constant angular velocity (PCAV)
    • Outer half of disc 6x (27 MB/s)
    • Inner half varies, 3.3x to 6x

    – Internal mass storage

    • One SKU at launch: 500 GB HDD
    • There may also be a Flash drive SKU in the future

    Networking:

    • 1 Gb/s Ethernet, 802.11b/g/n WIFI, and Bluetooth

    Peripherals:

    • Evolved Dualshock controller
    • Dual Camera
    • Move controller

    Extra:

    • Audio Processor (ACP)
    • Video encode and decode (VCE/UVD) units
    • Display ScanOut Engine (DCE)
    • Zlib Decompression Hardware

    Each CU contains dedicated:

    • ALU (32 64-bit operations per cycle)
    • Texture Unit
    • L1 data cache
    • Local data share (LDS)
    • About  14 + 4 balance:
      • 4 additional CUs (410 Gflops) “extra” ALU as resource for compute
      • Minor boost if used for rendering
    • Dual Shader Engines:
      • 1.6 billion triangles/s, 1.6 billion vertices/s
    • 18 Texture units
      • 56 billion bilinear texture reads/s
      • Can utilize full memory bandwidth
    • 8 Render backends:
      • 32 color ops/cycle
      • 128 depth ops/cycle
      • Can utilize full memory bandwidth