Radeon HD 6970M Crossfire and GeForce 945M - video card comparison
Radeon HD 6970M Crossfire
GeForce 945M
Architecture
Terascale 2 (2009−2015)
Maxwell (2014−2018)
GPU code name
Blackcomb XT
GM107
Market segment
Laptop
Laptop
Release date
January 2011
March 2015
Bus support
-
PCI Express 3.0
Interface
-
MXM-B (3.0)
Supplementary power connectors
-
None
Boost clock speed
-
1045 MHz
Core clock speed
680 MHz
928 MHz
Floating-point performance
-
953.9 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2x1700 Million
1,870 million
Pipelines / CUDA cores
1920
512
Power consumption (TDP)
-
75 Watt
Texture fill rate
-
40.80
Memory type
GDDR5
DDR3
Maximum RAM amount
2x2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
900 MHz
2000 MHz
Memory bandwidth
-
28.8 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
11
12 (11_0)
CUDA
-
+
OpenCL
-
1.2
OpenGL
-
4.5
Shader Model
-
5.1
Vulkan
-
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+