GeForce GTX 660M and Radeon R7 M260 - video card comparison
Passmark - benchmark score GeForce GTX 660M vs Radeon R7 M260
GeForce GTX 660M
1478
Radeon R7 M260
511
GeForce GTX 660M
Radeon R7 M260
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
N13E-GE
Opal Pro / Mars
Market segment
Laptop
Laptop
Release date
March 2012
January 2014
Bus support
PCI Express 2.0, PCI Express 3.0
PCIe 3.0 x8
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
950 MHz
980 MHz
Compute units
-
6
Core clock speed
835 MHz
715 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
721.9 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,550 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
50 Watt
-
Texture fill rate
30.4 billion/sec
23.52
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
128bit
128 Bit
Memory clock speed
2000 MHz
900 MHz
Memory bandwidth
64.0 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
DirectX® 12
CUDA
+
-
Mantle
-
+
OpenCL
1.1
2.0
OpenGL
4.5
4.3
Shader Model
5.1
6.3
Vulkan
1.1.126
-
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+