GeForce 840M and Radeon RX Vega 56 Mobile - video card comparison
GeForce 840M
Radeon RX Vega 56 Mobile
Architecture
Maxwell (2014−2018)
GCN 5.0 (2017−2020)
GPU code name
N15S-GT
Vega 10
Market segment
Laptop
Laptop
Release date
March 2014
June 2018
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Boost clock speed
1124 MHz
1301 MHz
Core clock speed
1029 MHz
1138 MHz
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
-
12,500 million
Pipelines / CUDA cores
384
3584
Power consumption (TDP)
33 Watt
120 Watt
Texture fill rate
17.98
291.4
Memory type
DDR3
HBM2
Maximum RAM amount
4 GB
8 GB
Memory bus width
64 Bit
2048 Bit
Memory clock speed
2000 MHz
1600 MHz
Memory bandwidth
16.02 GB/s
409.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI, 3x DisplayPort
HDMI
-
+
DirectX
12 (11_0)
12 (12_1)
CUDA
+
-
OpenCL
1.2
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.1.125
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-