GeForce 820M and Radeon R4 (Stoney Ridge) - video card comparison
GeForce 820M
Radeon R4 (Stoney Ridge)
Architecture
Fermi (2010−2014)
GCN 1.2/2.0 (2015−2016)
GPU code name
N15V-GM
Stoney Ridge
Market segment
Laptop
Laptop
Release date
January 2014
June 2016
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
-
Boost clock speed
-
600 MHz
Core clock speed
775 MHz
-
Floating-point performance
240.0 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
585 million
-
Pipelines / CUDA cores
96
192
Power consumption (TDP)
15 Watt
15 Watt
Texture fill rate
10.00
-
Memory type
DDR3
-
Maximum RAM amount
2 GB
-
Memory bus width
64 Bit
64 Bit
Memory clock speed
1800 MHz
-
Memory bandwidth
14.4 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
-
DirectX
12 (11_0)
12 (FL 12_0)
CUDA
+
-
OpenCL
1.1
-
OpenGL
4.5
-
Shader Model
5.1
-
Vulkan
N/A
-
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-