Radeon HD 7640G and Radeon HD 8450G + Radeon HD 8570M Dual Graphics - video card comparison
Radeon HD 7640G
Radeon HD 8450G + Radeon HD 8570M Dual Graphics
Architecture
Terascale 3 (2010−2013)
Terascale 3 / GCN (2012)
GPU code name
Trinity
-
Market segment
Laptop
Laptop
Release date
May 2012
March 2012
Interface
IGP
-
Boost clock speed
686 MHz
-
Core clock speed
497 MHz
720 / 650 MHz
Manufacturing process technology
32 nm
40 nm
Number of transistors
1,303 million
-
Pipelines / CUDA cores
256
576
Power consumption (TDP)
35 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
1800 MHz
Shared memory
+
+
Display Connectors
No outputs
-
DirectX
11.2 (11_0)
11
OpenCL
1.2
-
OpenGL
4.4
-
Shader Model
5.0
-
Vulkan
N/A
-