Radeon Instinct MI8 and Radeon R5 A255 - video card comparison
Radeon Instinct MI8
Radeon R5 A255
Architecture
GCN 3.0 (2014−2017)
GCN 3.0 (2014−2017)
GPU code name
Fiji
Topaz
Market segment
Desktop
Desktop
Release date
December 2016
2014
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 8-pin
-
Boost clock speed
-
940 MHz
Core clock speed
1000 MHz
925 MHz
Floating-point performance
8,192 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
8,900 million
1,550 million
Pipelines / CUDA cores
4096
384
Power consumption (TDP)
175 Watt
-
Texture fill rate
256.0
22.56
Memory type
HBM
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
4096 Bit
128 Bit
Memory clock speed
1000 MHz
4 GB/s
Memory bandwidth
512.0 GB/s
64 GB/s
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (12_0)
12 (12_0)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.3
6.5
Vulkan
1.2.131
1.2.170