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    GeForce GTX 675M vs Radeon HD 7990

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 675M and Radeon HD 7990. 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 GeForce GTX 675M and Radeon HD 7990. 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.
    GeForce GTX 675M Check Price
    Radeon HD 7990 Check Price

    GeForce GTX 675M is a Laptop Graphics Card

    Note: GeForce GTX 675M is only used in laptop graphics. It has 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 GeForce GTX 675M here:

    GeForce GTX 675M Laptops

    Main Specs

      GeForce GTX 675M Radeon HD 7990
    Power consumption (TDP) 100 Watt 375 Watt
    Interface MXM-B (3.0) PCIe 3.0 x16
    Supplementary power connectors 2x 8-pin
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 3 GB
    Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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    • Radeon HD 7990 has 275% more power consumption, than GeForce GTX 675M.
    • GeForce GTX 675M is connected by MXM-B (3.0), and Radeon HD 7990 uses PCIe 3.0 x16 interface.
    • Radeon HD 7990 has 1 GB more memory, than GeForce GTX 675M.
    • GeForce GTX 675M is used in Laptops, and Radeon HD 7990 - in Desktops.
    • GeForce GTX 675M is build with Fermi architecture, and Radeon HD 7990 - with GCN 1.0.
    • Core clock speed of Radeon HD 7990 is 330 MHz higher, than GeForce GTX 675M.
    • GeForce GTX 675M is manufactured by 40 nm process technology, and Radeon HD 7990 - by 28 nm process technology.
    • Memory clock speed of Radeon HD 7990 is 4500 MHz higher, than GeForce GTX 675M.

    Game benchmarks

    high / 1080p 10−11 35−40
    ultra / 1080p 6−7 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 21−24 60−65
    medium / 1080p 12−14 40−45
    The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 215% more, than GeForce GTX 675M.

    Full Specs

      GeForce GTX 675M Radeon HD 7990
    Architecture Fermi GCN 1.0
    Code name N13E-GS1 Malta
    Type Laptop Desktop
    Release date 22 March 2012 24 April 2013
    Pipelines 384 2048
    Core clock speed 620 MHz 950 MHz
    Boost Clock 1000 MHz
    Transistor count 1,950 million 4,313 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 39.7 billion/sec 128.0
    Floating-point performance 952.3 gflops 2x 4,096 gflops
    Length 307 mm
    Memory bus width 256bit 384 Bit
    Memory clock speed 1500 MHz 6000 MHz
    Memory bandwidth 96.0 GB/s 288.0 GB/s
    Shared memory -
    DirectX 12 API 12 (11_1)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    Vulkan N/A 1.2.131
    CUDA +
    CUDA cores 384
    Bus support PCI Express 2.0
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    Bitcoin / BTC (SHA256) 59 Mh/s 459 Mh/s
    Laptop size large
    Optimus +
    Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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