Radeon RX 470 Mobile and GeForce 840M - video card comparison
Radeon RX 470 Mobile
GeForce 840M
Architecture
Polaris (2016−2019)
Maxwell (2014−2018)
GPU code name
Polaris 10 Pro
N15S-GT
Market segment
Laptop
Laptop
Release date
August 2016
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x8
Boost clock speed
1206 MHz
1124 MHz
Core clock speed
926 MHz
1029 MHz
Floating-point performance
4,399 gflops
863.2 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
-
Pipelines / CUDA cores
2048
384
Power consumption (TDP)
120 Watt
33 Watt
Texture fill rate
137.5
17.98
Memory type
GDDR5
DDR3
Maximum RAM amount
8 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
7000 MHz
2000 MHz
Memory bandwidth
224.0 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.2
OpenGL
4.6
4.5
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
FreeSync
+
-
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+