GeForce GTX 670MX and Radeon HD 6970M Mac Edition - video card comparison
GeForce GTX 670MX
Radeon HD 6970M Mac Edition
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
N13E-GR
Blackcomb
Market segment
Laptop
Desktop
Release date
October 2012
August 2011
Bus support
PCI Express 2.0
-
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
-
None
SLI options
+
-
Core clock speed
600 MHz
680 MHz
CUDA cores
960
-
Floating-point performance
1,154 gflops
1,305.6 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
1,700 million
Pipelines / CUDA cores
960
960
Power consumption (TDP)
75 Watt
75 Watt
Texture fill rate
48.0 billion/sec
32.64
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
192 Bit
256 Bit
Memory clock speed
1400 MHz
3600 MHz
Memory bandwidth
67.2 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
1.1.126
N/A
Optimus
+
-