Radeon HD 6970M and GeForce 840M - video card comparison
Passmark - benchmark score Radeon HD 6970M vs GeForce 840M
Radeon HD 6970M
2338
GeForce 840M
1121
Radeon HD 6970M
GeForce 840M
Architecture
Terascale 2 (2009−2015)
Maxwell (2014−2018)
GPU code name
Blackcomb XT
N15S-GT
Market segment
Laptop
Laptop
Release date
January 2011
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
-
Boost clock speed
-
1124 MHz
Core clock speed
680 MHz
1029 MHz
Floating-point performance
1,305.6 gflops
863.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
-
Pipelines / CUDA cores
960
384
Power consumption (TDP)
75-100 Watt
33 Watt
Texture fill rate
32.64
17.98
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
900 MHz
2000 MHz
Memory bandwidth
115.2 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
+
OpenCL
1.2
1.2
OpenGL
4.4
4.5
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+