GeForce GTX 660 vs Radeon R7 M380

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Radeon R7 M380, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660 stacks up against Radeon R7 M380, check out specs charts below.

Radeon R7 M380 is a Laptop Graphics Card

Note: Radeon R7 M380 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 R7 M380 here:

Main Specs

  GeForce GTX 660 Radeon R7 M380
Power consumption (TDP) 140 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors One 6-pin
Memory type GDDR5 DDR3
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R7 M380 has 2 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon R7 M380 - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon R7 M380 - with GCN.
  • Core clock speed of GeForce GTX 660 is 65 MHz higher, than Radeon R7 M380.
  • GeForce GTX 660 and Radeon R7 M380 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R7 M380 is 994 MHz higher, than GeForce GTX 660.

Game benchmarks

high / 1080p 20−22 6−7
ultra / 1080p 12−14 4−5
QHD / 1440p 6−7 0−1
4K / 2160p 5−6
low / 720p 40−45 16−18
medium / 1080p 24−27 8−9
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 177% more, than Radeon R7 M380.

Full Specs

  GeForce GTX 660 Radeon R7 M380
Architecture Kepler GCN
Code name GK106 Tropo
Type Desktop Laptop
Release date 6 September 2012 7 May 2015
Pipelines 960 640
Core clock speed 980 MHz 915 MHz
Boost Clock 1033 MHz 915 MHz
Transistor count 2,540 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 78.4 billion/sec 36.60
Floating-point performance 1,981 gflops 1,171 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 128 Bit
Memory clock speed 6.0 GB/s 1000 MHz
Memory bandwidth 144.2 GB/s 32 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.3 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126
CUDA +
FreeSync +
CUDA cores 960
Bus support PCI Express 3.0 PCIe 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
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 10
AppAcceleration +
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