Subscribe to our YouTube channel ×

    Radeon HD 6990M vs Radeon R9 M395X

    Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990M and Radeon R9 M395X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990M and Radeon R9 M395X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    Radeon HD 6990M Check Price
    Radeon R9 M395X Check Price

    Radeon HD 6990M and Radeon R9 M395X are Laptop Graphics Cards

    Note: Radeon HD 6990M and Radeon R9 M395X are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon HD 6990M or Radeon R9 M395X here:

    Radeon HD 6990M Laptops
    Radeon R9 M395X Laptops

    Main Specs

      Radeon HD 6990M Radeon R9 M395X
    Power consumption (TDP) 100 Watt 250 Watt
    Interface MXM-B (3.0) PCIe 3.0 x16
    Supplementary power connectors None None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
      Check Price Check Price
    • Radeon R9 M395X has 150% more power consumption, than Radeon HD 6990M.
    • Radeon HD 6990M is connected by MXM-B (3.0), and Radeon R9 M395X uses PCIe 3.0 x16 interface.
    • Radeon R9 M395X has 2 GB more memory, than Radeon HD 6990M.
    • Both cards are used in Laptops.
    • Radeon HD 6990M is build with Terascale 2 architecture, and Radeon R9 M395X - with GCN 3.
    • Core clock speed of Radeon R9 M395X is 8 MHz higher, than Radeon HD 6990M.
    • Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon R9 M395X - by 28 nm process technology.
    • Memory clock speed of Radeon R9 M395X is 350 MHz higher, than Radeon HD 6990M.

    Game benchmarks

    high / 1080p 14−16 24−27
    ultra / 1080p 8−9 14−16
    QHD / 1440p 3−4 9−10
    4K / 2160p − 6−7
    low / 720p 30−33 45−50
    medium / 1080p 16−18 30−35
    The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 73% more, than Radeon HD 6990M.

    Full Specs

      Radeon HD 6990M Radeon R9 M395X
    Architecture Terascale 2 GCN 3
    Code name Blackcomb XTX Amethyst XT
    Type Laptop Laptop
    Release date 12 July 2011 16 October 2014
    Pipelines 1120 2048
    Core clock speed 715 MHz 723 MHz
    Transistor count 1,700 million 5,000 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 40.04 92.54
    Floating-point performance 1,601.6 gflops 2,961 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 900 MHz 1250 MHz
    Memory bandwidth 115.2 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 11.2 (11_0)
    Shader Model 5.0 6.3
    OpenGL 4.4 4.4
    OpenCL 1.2 Not Listed
    Vulkan N/A
    FreeSync +
    Bus support PCIe 3.0
    Bitcoin / BTC (SHA256) 413 Mh/s
    Laptop size large large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
      Check Price Check Price

    Similar compares