Radeon HD 5870 and Radeon HD 6870M - video card comparison
Radeon HD 5870
Radeon HD 6870M
Architecture
TeraScale 2 (2009−2015)
Terascale 2 (2009−2015)
GPU code name
Cypress
Granville-PRO
Market segment
Desktop
Laptop
Release date
September 2009
January 2011
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 6-pin
-
Core clock speed
850 MHz
675 MHz
Floating-point performance
2,720.0 gflops
1,080.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
2,154 million
1,040 million
Pipelines / CUDA cores
1600
800
Power consumption (TDP)
188 Watt
50 Watt
Texture fill rate
68.00
27.00
Memory type
GDDR5
DDR3, GDDR3, GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
1000 MHz
Memory bandwidth
153.6 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
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