Radeon HD 7640G and Radeon R4 (Stoney Ridge) - video card comparison
Radeon HD 7640G
Radeon R4 (Stoney Ridge)
Architecture
Terascale 3 (2010−2013)
GCN 1.2/2.0 (2015−2016)
GPU code name
Trinity
Stoney Ridge
Market segment
Laptop
Laptop
Release date
May 2012
June 2016
Interface
IGP
-
Boost clock speed
686 MHz
600 MHz
Core clock speed
497 MHz
-
Manufacturing process technology
32 nm
28 nm
Number of transistors
1,303 million
-
Pipelines / CUDA cores
256
192
Power consumption (TDP)
35 Watt
15 Watt
Texture fill rate
10.96
-
Memory type
System Shared
-
Maximum RAM amount
System Shared
-
Memory bus width
System Shared
64 Bit
Memory clock speed
System Shared
-
Shared memory
+
+
Display Connectors
No outputs
-
DirectX
11.2 (11_0)
12 (FL 12_0)
OpenCL
1.2
-
OpenGL
4.4
-
Shader Model
5.0
-
Vulkan
N/A
-