GeForce GT 755M and GeForce GT 420M - video card comparison
Passmark - benchmark score GeForce GT 755M vs GeForce GT 420M
GeForce GT 755M
1739
GeForce GT 420M
417
GeForce GT 755M
GeForce GT 420M
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
N14P-
N11P-GE
Market segment
Laptop
Laptop
Release date
June 2013
September 2010
Bus support
PCI Express 3.0, PCI Express 2.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
SLI-ready
-
-
Core clock speed
980 MHz
500 MHz
CUDA cores
-
96
Floating-point performance
752.6 gflops
192 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
585 million
Pipelines / CUDA cores
384
96
Power consumption (TDP)
50 Watt
23 Watt
Texture fill rate
31.36
6.0 billion/sec
Memory type
GDDR5
(G)DDR3
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5400 MHz
800 MHz
Memory bandwidth
86.4 GB/s
25.6 GB/s
Shared memory
-
-
Standard memory configuration
GDDR5
-
Display Connectors
No outputs
No outputs
eDP 1.2 signal support
Up to 3840x2160
-
LVDS signal support
Up to 1920x1200
-
VGA аnalog display support
Up to 2048x1536
-
DisplayPort Multimode (DP++) support
Up to 3840x2160
-
HDCP content protection
+
-
HDMI
+
-
7.1 channel HD audio on HDMI
+
-
DirectX
12 API
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Vision / 3DTV Play
+
-
Blu-Ray 3D Support
+
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-
TrueHD and DTS-HD audio bitstreaming
+
-