Radeon HD 7640G and Radeon HD 4270 - video card comparison
Passmark - benchmark score Radeon HD 7640G vs Radeon HD 4270
Radeon HD 7640G
473
Radeon HD 4270
112
Radeon HD 7640G
Radeon HD 4270
Architecture
Terascale 3 (2010−2013)
RV6xx (2007−2010)
GPU code name
Trinity
RS880M
Market segment
Laptop
Laptop
Release date
May 2012
May 2010
Interface
IGP
-
Boost clock speed
686 MHz
-
Core clock speed
497 MHz
590 MHz
Manufacturing process technology
32 nm
55 nm
Number of transistors
1,303 million
-
Pipelines / CUDA cores
256
40
Power consumption (TDP)
35 Watt
-
Texture fill rate
10.96
-
Memory type
System Shared
-
Maximum RAM amount
System Shared
512 MB
Memory bus width
System Shared
-
Memory clock speed
System Shared
-
Shared memory
+
+
Display Connectors
No outputs
-
DirectX
11.2 (11_0)
10.1
OpenCL
1.2
-
OpenGL
4.4
-
Shader Model
5.0
-
Vulkan
N/A
-