Radeon HD 6770M and Radeon R4 Graphics - video card comparison
Radeon HD 6770M
Radeon R4 Graphics
Architecture
Terascale 2 (2009−2015)
GCN 2.0 (2013−2017)
GPU code name
Whistler-XT
Beema
Market segment
Laptop
Desktop
Release date
January 2011
June 2014
Interface
MXM-A (3.0)
IGP
Core clock speed
675 / 725 MHz
800 MHz
Floating-point performance
696.0 gflops
204.8 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
716 million
930 million
Pipelines / CUDA cores
480
128
Power consumption (TDP)
35 Watt
15 Watt
Texture fill rate
17.40
6.400
Memory type
GDDR5
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
800 MHz
System Shared
Memory bandwidth
57.6 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.3
Vulkan
N/A
1.2.131