GeForce GTX 660M and Radeon R7 M445 - video card comparison
Passmark - benchmark score GeForce GTX 660M vs Radeon R7 M445
GeForce GTX 660M
1478
Radeon R7 M445
971
GeForce GTX 660M
Radeon R7 M445
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
N13E-GE
Meso
Market segment
Laptop
Laptop
Release date
March 2012
May 2016
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 3.0 x8
SLI options
+
-
Boost clock speed
950 MHz
920 MHz
Core clock speed
835 MHz
920 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
588.8 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,550 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
50 Watt
15-25 Watt
Texture fill rate
30.4 billion/sec
18.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128bit
64 Bit
Memory clock speed
2000 MHz
2000 MHz
Memory bandwidth
64.0 GB/s
32 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.0
Vulkan
1.1.126
1.2.131
Optimus
+
-