Radeon HD 7870M and Radeon HD 6970M - video card comparison
Passmark - benchmark score Radeon HD 7870M vs Radeon HD 6970M
Radeon HD 7870M
1552
Radeon HD 6970M
2338
Radeon HD 7870M
Radeon HD 6970M
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Heathrow XT
Blackcomb XT
Market segment
Laptop
Laptop
Release date
April 2012
January 2011
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
-
None
Core clock speed
800 MHz
680 MHz
Floating-point performance
1,024 gflops
1,305.6 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
1,700 million
Pipelines / CUDA cores
640
960
Power consumption (TDP)
45 Watt
75-100 Watt
Texture fill rate
32.00
32.64
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
4000 MHz
900 MHz
Memory bandwidth
64 GB/s
115.2 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