Radeon HD 6990M and GeForce GTX 570M - video card comparison
Radeon HD 6990M
GeForce GTX 570M
Architecture
Terascale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Blackcomb XTX
N12E-GT
Market segment
Laptop
Laptop
Release date
July 2011
June 2011
Bus support
-
PCI-E 2.0
Interface
MXM-B (3.0)
MXM-B (3.0)
Supplementary power connectors
None
None
SLI options
-
+
Core clock speed
715 MHz
575 MHz
CUDA cores
-
336
Floating-point performance
1,601.6 gflops
772.8 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
1,950 million
Pipelines / CUDA cores
1120
336
Power consumption (TDP)
100 Watt
75 Watt
Texture fill rate
40.04
32.2 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
3 MB
Memory bus width
256 Bit
192 Bit
Memory clock speed
900 MHz
1500 MHz
Memory bandwidth
115.2 GB/s
72.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
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
N/A
3D Blu-Ray
-
+
3D Gaming
-
+
Optimus
-
+