GeForce GTX 660M and GeForce 845M - video card comparison
Passmark - benchmark score GeForce GTX 660M vs GeForce 845M
GeForce GTX 660M
1478
GeForce 845M
1570
GeForce GTX 660M
GeForce 845M
Architecture
Kepler (2012−2018)
Maxwell (2014−2018)
GPU code name
N13E-GE
GM108
Market segment
Laptop
Laptop
Release date
March 2012
March 2014
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
1150 MHz
Core clock speed
835 MHz
1071 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
883.7 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,870 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
50 Watt
45 Watt
Texture fill rate
30.4 billion/sec
37.63
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
64/128 Bit
Memory clock speed
2000 MHz
2000 - 5000 MHz
Memory bandwidth
64.0 GB/s
40.1 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
Optimus
+
+