Radeon HD 7970M Crossfire and Radeon 680M - video card comparison
Radeon HD 7970M Crossfire
Radeon 680M
Architecture
GCN (2011−2017)
RDNA 2 (2020−2022)
GPU code name
Wimbledon XT
RDNA 2 Rembrandt
Market segment
Laptop
Laptop
Release date
May 2012
January 2022
Interface
-
PCIe 4.0 x8
Supplementary power connectors
-
None
Boost clock speed
-
2400 MHz
Core clock speed
850 MHz
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
-
13,100 million
Pipelines / CUDA cores
2560
768
Power consumption (TDP)
200 Watt
45 Watt
Texture fill rate
-
115.2
Memory type
GDDR5
System Shared
Maximum RAM amount
-
System Shared
Memory bus width
2x 256 Bit
System Shared
Memory clock speed
4800 MHz
System Shared
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
11.1
12 (12_1)
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.5
Vulkan
-
1.2