Radeon HD 7770M and Radeon HD 7670M - video card comparison
Radeon HD 7770M
Radeon HD 7670M
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Chelsea XT
Thames XT
Market segment
Laptop
Laptop
Release date
April 2012
June 2011
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Core clock speed
675 MHz
600 MHz
Floating-point performance
691.2 gflops
576.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
716 million
Pipelines / CUDA cores
512
480
Power consumption (TDP)
32 Watt
20 Watt
Texture fill rate
21.60
14.40
Memory type
GDDR5
DDR3, (GDDR5)
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4000 MHz
1800 MHz
Memory bandwidth
64 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A