GeForce 840M and HD Graphics 12EU Mobile - video card comparison
GeForce 840M
HD Graphics 12EU Mobile
Architecture
Maxwell (2014−2018)
Generation 8.0 (2014−2015)
GPU code name
N15S-GT
Braswell GT1
Market segment
Laptop
Laptop
Release date
March 2014
April 2015
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x8
Ring Bus
Boost clock speed
1124 MHz
800 MHz
Core clock speed
1029 MHz
500 MHz
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
14 nm
Pipelines / CUDA cores
384
96
Power consumption (TDP)
33 Watt
6 Watt
Texture fill rate
17.98
6.000
Memory type
DDR3
System Shared
Maximum RAM amount
4 GB
System Shared
Memory bus width
64 Bit
System Shared
Memory clock speed
2000 MHz
System Shared
Memory bandwidth
16.02 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (11_0)
12 (11_1)
CUDA
+
-
OpenCL
1.2
3.0
OpenGL
4.5
4.3
Shader Model
5.1
5.1
Vulkan
1.1.126
+
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-