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AMD Radeon Instinct MI8

Fiji
Graphics Processor
4096
Cores
256
TMUs
64
ROPs
4096 MB
Memory Size
HBM
Memory Type
4096 bit
Bus Width
AMD Radeon Instinct MI8 Photo AMD Fiji Photo
The Radeon Instinct MI8 is a professional graphics card by AMD, launched in December 2016. Built on the 28 nm process, and based on the Fiji graphics processor, in its Fiji XT variant, the card supports DirectX 12.0. The Fiji graphics processor is a large chip with a die area of 596 mm² and 8,900 million transistors. It features 4096 shading units, 256 texture mapping units and 64 ROPs. AMD has placed 4,096 MB HBM memory on the card, which are connected using a 4096-bit memory interface. The GPU is operating at a frequency of 1000 MHz, memory is running at 500 MHz.
Being a dual-slot card, the AMD Radeon Instinct MI8 draws power from 1x 8-pin power connectors, with power draw rated at 175 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Radeon Instinct MI8 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 152 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name
Fiji
GPU Variant
Fiji XT
Architecture
GCN 3.0
Process Size
28 nm
Transistors
8,900 million
Die Size
596 mm²

Graphics Card

Release Date
Dec 12th, 2016
Generation
Radeon Instinct
(MIx)
Production
Active
Bus Interface
PCIe 3.0 x16

Relative Performance

2%
2%
3%
4%
4%
5%
6%
7%
7%
8%
9%
9%
10%
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15%
18%
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18%
18%
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25%
27%
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27%
28%
28%
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31%
32%
32%
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35%
36%
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38%
39%
39%
39%
39%
42%
42%
43%
44%
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44%
45%
45%
47%
50%
51%
53%
53%
54%
54%
55%
57%
58%
60%
60%
60%
67%
74%
75%
80%
80%
81%
82%
83%
83%
85%
85%
85%
86%
91%
93%
94%
94%
100%
Radeon Instinct MI8
103%
105%
107%
115%
126%
131%
141%
141%
148%
174%
178%
194%
221%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
1000 MHz
Memory Clock
500 MHz
1000 MHz effective

Memory

Memory Size
4096 MB
Memory Type
HBM
Memory Bus
4096 bit
Bandwidth
512.0 GB/s

Render Config

Shading Units
4096
TMUs
256
ROPs
64
Compute Units
64

Theoretical Performance

Pixel Rate
64.00 GPixel/s
Texture Rate
256.0 GTexel/s
FP16 (half) performance
8,192 GFLOPS (1:1)
FP32 (float) performance
8,192 GFLOPS
FP64 (double) performance
512.0 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
Length
6 inches
152 mm
TDP
175 W
Outputs
No outputs
Power Connectors
1x 8-pin

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.5
OpenCL
2.0
Vulkan
1.1.82
Shader Model
6.0

Fiji GPU Notes

Graphics/Compute: GFX8 (gfx803)
Display Core Engine: 10.0
Unified Video Decoder: 6.0
Video Compression Engine: 3.0