GeForce GT 755M SLI and Radeon HD 6990M - video card comparison
GeForce GT 755M SLI
Radeon HD 6990M
Architecture
Kepler (2012−2018)
Terascale 2 (2009−2015)
GPU code name
N14P-?
Blackcomb XTX
Market segment
Laptop
Laptop
Release date
November 2013
July 2011
Interface
-
MXM-B (3.0)
Supplementary power connectors
-
None
Core clock speed
980 MHz
715 MHz
Floating-point performance
-
1,601.6 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2x 1300 Million
1,700 million
Pipelines / CUDA cores
768
1120
Power consumption (TDP)
2x ~50 Watt
100 Watt
Texture fill rate
-
40.04
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 2 GB
2 GB
Memory bus width
2x 128 Bit
256 Bit
Memory clock speed
5400 MHz
900 MHz
Memory bandwidth
-
115.2 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
11
11.2 (11_0)
CUDA
+
-
OpenCL
-
1.2
OpenGL
-
4.4
Shader Model
-
5.0
Vulkan
-
N/A