Radeon HD 7970M and GeForce GTX 675M SLI - video card comparison
Radeon HD 7970M
GeForce GTX 675M SLI
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Wimbledon XT
N12E-GTX2
Market segment
Laptop
Laptop
Release date
May 2012
January 2011
Interface
MXM-B (3.0)
-
Supplementary power connectors
None
-
SLI options
-
+
Core clock speed
850 MHz
620 MHz
Floating-point performance
2,176 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
-
Pipelines / CUDA cores
1280
768
Power consumption (TDP)
100 Watt
2x 100 Watt
Texture fill rate
68.00
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
-
Memory bus width
256 Bit
256 Bit
Memory clock speed
4800 MHz
3000 MHz
Memory bandwidth
153.6 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
-
DirectX
12 (11_1)
11
CUDA
-
+
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.2.131
-
Optimus
-
+