AMD Radeon Instinct MI8 vs AMD Radeon RX 580X
GPU Specs Compare
Graphics Card
Release Date
Dec 2016
Apr 2018
Generation
Radeon Instinct
Polaris
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
500 MHz
2000 MHz
Base Clock
-
1257 MHz
Boost Clock
-
1340 MHz
Memory
Memory Size
4GB
8GB
Memory Type
HBM
GDDR5
Memory Bus
4096bit
256bit
Bandwidth
512.0GB/s
256.0GB/s
Render Config
Compute Units
64
36
Shading Units
4096
2304
TMUs
256
144
ROPs
64
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
2 MB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
42.88 GPixel/s
Texture Rate
256.0 GTexel/s
193.0 GTexel/s
FP16 (half)
8.192 TFLOPS
6.175 TFLOPS
FP32 (float)
8.192 TFLOPS
6.175 TFLOPS
FP64 (double)
512.0 GFLOPS
385.9 GFLOPS
Graphics Processor
GPU Name
Fiji
Polaris 20
GPU Variant
Fiji XT CA(215-0862120)
Polaris 20 XTX(215-0910038)
Architecture
GCN 3.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
8.9 billion
5.7 billion
Die Size
596 mm²
232 mm²
Board Design
TDP
175W
185W
Suggested PSU
450 W
450 W
Outputs
No outputs
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
1x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2.170
1.2
Shader Model
6.5
6.4