Radeon HD 8590M and Radeon HD 6870M - video card comparison
Radeon HD 8590M
Radeon HD 6870M
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Sun
Granville-PRO
Market segment
Laptop
Laptop
Release date
November 2012
January 2011
Interface
PCIe 3.0 x8
MXM-B (3.0)
Boost clock speed
825 MHz
-
Core clock speed
620 MHz
675 MHz
Floating-point performance
528.0 gflops
1,080.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
690 million
1,040 million
Pipelines / CUDA cores
384
800
Power consumption (TDP)
-
50 Watt
Texture fill rate
16.50
27.00
Memory type
GDDR5
DDR3, GDDR3, GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
4500 MHz
1000 MHz
Memory bandwidth
36 GB/s
64 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