GeForce GT 420M and Radeon HD 7950M - video card comparison
GeForce GT 420M
Radeon HD 7950M
Architecture
Fermi (2010−2014)
GCN (2011−2017)
GPU code name
N11P-GE
Wimbledon Pro
Market segment
Laptop
Laptop
Release date
September 2010
May 2012
Interface
PCIe 2.0 x16
MXM-B (3.0)
Core clock speed
500 MHz
700 MHz
CUDA cores
96
-
Floating-point performance
192 gflops
-
Manufacturing process technology
40 nm
28 nm
Number of transistors
585 million
2,800 million
Pipelines / CUDA cores
96
1280
Power consumption (TDP)
23 Watt
50 Watt
Texture fill rate
6.0 billion/sec
56.00
Memory type
(G)DDR3
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
800 MHz
4000 MHz
Memory bandwidth
25.6 GB/s
128.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 (11_1)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
N/A
1.2.131