GeForce GTX 670M and Radeon HD 6950M - video card comparison
GeForce GTX 670M
Radeon HD 6950M
Architecture
Fermi (2010−2014)
Terascale 2 (2009−2015)
GPU code name
N13E-GS1-LP
Blackcomb Pro
Market segment
Laptop
Laptop
Release date
March 2012
January 2011
Bus support
PCI Express 2.0
-
Interface
MXM-B (3.0)
MXM-B (3.0)
SLI options
+
-
Core clock speed
598 MHz
580 MHz
CUDA cores
336
-
Floating-point performance
803.7 gflops
1,113.6 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,950 million
1,700 million
Pipelines / CUDA cores
336
960
Power consumption (TDP)
75 Watt
50 Watt
Texture fill rate
33.5 billion/sec
27.84
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
192bit
256 Bit
Memory clock speed
1500 MHz
900 MHz
Memory bandwidth
72.0 GB/s
115.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
11.2 (11_0)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.4
Shader Model
5.1
5.0
Vulkan
N/A
N/A
Optimus
+
-