Mobility Radeon HD 5870 and Radeon HD 6770M - video card comparison
Mobility Radeon HD 5870
Radeon HD 6770M
Architecture
Terascale 2 (2009−2015)
Terascale 2 (2009−2015)
GPU code name
Broadway-XT
Whistler-XT
Market segment
Laptop
Laptop
Release date
January 2010
January 2011
Interface
MXM-B (3.0)
MXM-A (3.0)
Core clock speed
700 MHz
675 / 725 MHz
Floating-point performance
1,120.0 gflops
696.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,040 million
716 million
Pipelines / CUDA cores
800
480
Power consumption (TDP)
50 Watt
35 Watt
Texture fill rate
28.00
17.40
Memory type
DDR3, GDDR3, GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1000 MHz
800 MHz
Memory bandwidth
64 GB/s
57.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
N/A
N/A