Radeon HD 7640G + HD 7670M Dual Graphics and Radeon HD 4670 - video card comparison
Radeon HD 7640G + HD 7670M Dual Graphics
Radeon HD 4670
Architecture
Terascale 3 (2010−2013)
TeraScale (2005−2013)
GPU code name
-
RV730
Market segment
Laptop
Desktop
Release date
May 2012
September 2008
Interface
-
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
655 / 600 MHz
750 MHz
Floating-point performance
-
480.0 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
-
514 million
Pipelines / CUDA cores
736
320
Power consumption (TDP)
-
59 Watt
Texture fill rate
-
24.00
Memory type
-
GDDR3
Maximum RAM amount
-
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1800 MHz
2000 MHz
Memory bandwidth
-
32 GB/s
Shared memory
+
-
Display Connectors
-
2x DVI, 1x S-Video
DirectX
11
10.1 (10_1)
OpenCL
-
1.1
OpenGL
-
3.3
Shader Model
-
4.1
Vulkan
-
N/A