Radeon HD 8590M and Mobility Radeon HD 4860 - video card comparison
Radeon HD 8590M
Mobility Radeon HD 4860
Architecture
GCN (2011−2017)
Terascale 1 (2008−2010)
GPU code name
Sun
M97-XT
Market segment
Laptop
Laptop
Release date
November 2012
March 2009
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Boost clock speed
825 MHz
-
Core clock speed
620 MHz
650 MHz
Floating-point performance
528.0 gflops
832.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
690 million
826 million
Pipelines / CUDA cores
384
640
Texture fill rate
16.50
20.80
Memory type
GDDR5
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)
10.1 (10_1)
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
1.2.131
N/A