GeForce GT 420M and Mobility Radeon HD 3670 - video card comparison
GeForce GT 420M
Mobility Radeon HD 3670
Architecture
Fermi (2010−2014)
RV6xx (2007−2010)
GPU code name
N11P-GE
M86XT
Market segment
Laptop
Laptop
Release date
September 2010
January 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Core clock speed
500 MHz
680 MHz
CUDA cores
96
-
Floating-point performance
192 gflops
163.2 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
585 million
378 million
Pipelines / CUDA cores
96
120
Power consumption (TDP)
23 Watt
30 Watt
Texture fill rate
6.0 billion/sec
5.440
Memory type
(G)DDR3
DDR2/GDDR3/GDDR4
Maximum RAM amount
1 GB
256 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
800 MHz
800 MHz
Memory bandwidth
25.6 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
4.5
3.3
Shader Model
5.1
4.1
Vulkan
N/A
N/A