GeForce GTX 670M and GeForce GT 420M - video card comparison
Passmark - benchmark score GeForce GTX 670M vs GeForce GT 420M
GeForce GTX 670M
1788
GeForce GT 420M
417
GeForce GTX 670M
GeForce GT 420M
Architecture
Fermi (2010−2014)
Fermi (2010−2014)
GPU code name
N13E-GS1-LP
N11P-GE
Market segment
Laptop
Laptop
Release date
March 2012
September 2010
Bus support
PCI Express 2.0
-
Interface
MXM-B (3.0)
PCIe 2.0 x16
SLI options
+
-
Core clock speed
598 MHz
500 MHz
CUDA cores
336
96
Floating-point performance
803.7 gflops
192 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,950 million
585 million
Pipelines / CUDA cores
336
96
Power consumption (TDP)
75 Watt
23 Watt
Texture fill rate
33.5 billion/sec
6.0 billion/sec
Memory type
GDDR5
(G)DDR3
Maximum RAM amount
3 GB
1 GB
Memory bus width
192bit
128 Bit
Memory clock speed
1500 MHz
800 MHz
Memory bandwidth
72.0 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
N/A
N/A
Optimus
+
-