GeForce 840M and Radeon 530 Mobile DDR3 - video card comparison
GeForce 840M
Radeon 530 Mobile DDR3
Architecture
Maxwell (2014−2018)
GCN 3.0 (2014−2017)
GPU code name
N15S-GT
Weston
Market segment
Laptop
Laptop
Release date
March 2014
April 2017
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Boost clock speed
1124 MHz
1021 MHz
Core clock speed
1029 MHz
-
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
-
1,550 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
33 Watt
50 Watt
Texture fill rate
17.98
24.50
Memory type
DDR3
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
2000 MHz
1800 MBps
Memory bandwidth
16.02 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (11_0)
12 (12_0)
CUDA
+
-
OpenCL
1.2
2.1
OpenGL
4.5
4.6
Shader Model
5.1
6.5 (6.0)
Vulkan
1.1.126
1.2.170
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-