Radeon HD 7970M and Radeon HD 7870M - video card comparison
Passmark - benchmark score Radeon HD 7970M vs Radeon HD 7870M
Radeon HD 7970M
3635
Radeon HD 7870M
1552
Radeon HD 7970M
Radeon HD 7870M
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Wimbledon XT
Heathrow XT
Market segment
Laptop
Laptop
Release date
May 2012
April 2012
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
-
Core clock speed
850 MHz
800 MHz
Floating-point performance
2,176 gflops
1,024 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
1,500 million
Pipelines / CUDA cores
1280
640
Power consumption (TDP)
100 Watt
45 Watt
Texture fill rate
68.00
32.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
4000 MHz
Memory bandwidth
153.6 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (11_1)
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
1.2.131