Radeon HD 6990M and GeForce GTX 675MX - video card comparison
Radeon HD 6990M
GeForce GTX 675MX
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Blackcomb XTX
N13E-GSR
Market segment
Laptop
Laptop
Release date
July 2011
October 2012
Bus support
-
PCI Express 2.0
Interface
MXM-B (3.0)
MXM-B (3.0)
Supplementary power connectors
None
None
SLI options
-
+
Core clock speed
715 MHz
600 MHz
CUDA cores
-
960
Floating-point performance
1,601.6 gflops
1,256 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
3,540 million
Pipelines / CUDA cores
1120
960
Power consumption (TDP)
100 Watt
100 Watt
Texture fill rate
40.04
48.0 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
900 MHz
1800 MHz
Memory bandwidth
115.2 GB/s
115.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
11.2 (11_0)
12 API
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.4
4.5
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126
Optimus
-
+