GeForce GTX 660 vs Radeon R8 M445DX

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 and Radeon R8 M445DX. 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 660 and Radeon R8 M445DX. 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 R8 M445DX is a Laptop Graphics Card

Note: Radeon R8 M445DX 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 Radeon R8 M445DX here:

Main Specs

  GeForce GTX 660 Radeon R8 M445DX
Power consumption (TDP) 140 Watt
Interface PCIe 3.0 x16 IGP
Supplementary power connectors One 6-pin
Memory type GDDR5 DDR4/DDR3
Maximum RAM amount 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon R8 M445DX uses IGP interface.
  • GeForce GTX 660 is used in Desktops, and Radeon R8 M445DX - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon R8 M445DX - with GCN.
  • Core clock speed of GeForce GTX 660 is 260 MHz higher, than Radeon R8 M445DX.
  • GeForce GTX 660 and Radeon R8 M445DX are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R8 M445DX is 927 MHz higher, than GeForce GTX 660.

Game benchmarks

high / 1080p 20−22 0−1
ultra / 1080p 12−14
QHD / 1440p 6−7 0−1
4K / 2160p 5−6
low / 720p 40−45 1−2
medium / 1080p 24−27 0−1
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 4100% more, than Radeon R8 M445DX.

Full Specs

  GeForce GTX 660 Radeon R8 M445DX
Architecture Kepler GCN
Code name GK106 Meso
Type Desktop Laptop
Release date 6 September 2012 1 June 2016
Pipelines 960 704
Core clock speed 980 MHz 720 / 1020 MHz
Boost Clock 1033 MHz 1021 MHz
Transistor count 2,540 million 1,550 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 78.4 billion/sec 20.42
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 128 + 64 Bit
Memory clock speed 6.0 GB/s 933 / 1000 MHz
Memory bandwidth 144.2 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.0
OpenGL 4.3 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
CUDA cores 960
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 66 Mh/s
Laptop size medium sized
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