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AMD Radeon Instinct MI8

Graphics Processor
Fiji
Cores
4096
TMUs
256
ROPs
64
Memory Size
4 GB
Memory Type
HBM
Bus Width
4096 bit
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
Foundry
TSMC
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%
GeForce 210
2%
GeForce 9400 GT
3%
Radeon HD 4550
4%
Radeon HD 5450
4%
Radeon HD 6450
5%
GeForce GT 520
6%
GeForce GT 220
7%
GeForce GT 430
7%
Radeon HD 5570
8%
Radeon HD 4670
9%
GeForce GT 440
9%
GeForce GT 240
10%
GeForce 9600 GT
11%
Radeon HD 5670
11%
GeForce GT 640
12%
GeForce 9800 GT
12%
Radeon HD 6670
13%
Radeon HD 4830
13%
Radeon HD 4770
14%
Radeon HD 4850
15%
GeForce GTS 250
15%
GeForce GTS 450
15%
Radeon HD 5750
18%
Radeon HD 7750
18%
Radeon HD 5770
18%
GeForce GTX 260
18%
Radeon HD 4870
18%
Radeon Vega 8
19%
GeForce GTX 550 Ti
19%
GeForce GTX 650
20%
Radeon HD 5830
21%
Radeon HD 6790
21%
Radeon HD 4890
22%
GeForce GTX 460
22%
Radeon RX Vega 11
22%
GeForce GT 1030
23%
GeForce GTX 275
23%
Radeon HD 7770 GHz Edition
23%
GeForce GTX 280
23%
GeForce GTX 465
24%
Radeon HD 6850
25%
GeForce GTX 285
27%
Radeon HD 5850
27%
GeForce GTX 650 Ti
27%
Radeon HD 7790
28%
Radeon RX 550
28%
GeForce GTX 470
29%
Radeon HD 6870
31%
Radeon HD 5870
32%
GeForce GTX 560 Ti
32%
Radeon HD 4870 X2
33%
GeForce GTX 750 Ti
33%
Radeon HD 6950
34%
GeForce GTX 295
35%
GeForce GTX 650 Ti Boost
35%
Radeon HD 7850
36%
GeForce GTX 480
37%
Radeon HD 6970
38%
Radeon R7 265
39%
Radeon RX 460
39%
Radeon R7 370
39%
GeForce GTX 660
39%
GeForce GTX 570
39%
Radeon RX 560
42%
GeForce GTX 950
42%
Radeon HD 7870 GHz Edition
43%
Radeon R9 270X
44%
GeForce GTX 660 Ti
44%
GeForce GTX 580
44%
GeForce GTX 1050
44%
Radeon HD 7950
45%
Radeon HD 5970
47%
GeForce GTX 760
50%
GeForce GTX 670
51%
GeForce GTX 960
53%
Radeon R9 380
53%
Radeon R9 285
54%
Radeon HD 7970
54%
GeForce GTX 680
55%
GeForce GTX 1050 Ti
57%
GeForce GTX 770
58%
Radeon HD 6990
60%
Radeon R9 280X
60%
GeForce GTX 590
60%
Radeon HD 7970 GHz Edition
67%
GeForce GTX 780
69%
GeForce GTX 1650
74%
Radeon RX 470
75%
Radeon R9 290
79%
Radeon RX 570
80%
Radeon R9 390
80%
Radeon R9 290X
81%
GeForce GTX 970
82%
GeForce GTX TITAN
83%
GeForce GTX 780 Ti
85%
Radeon R9 390X
85%
Radeon HD 7990
85%
Radeon RX 480
86%
GeForce GTX 690
91%
Radeon RX 580
93%
GeForce GTX 980
94%
Radeon R9 FURY
94%
GeForce GTX 1060 6 GB
98%
Radeon RX 590
100%
Radeon Instinct MI8
103%
Radeon R9 295X2
104%
GeForce GTX 1660
105%
Radeon R9 FURY X
107%
GeForce GTX 980 Ti
110%
GeForce GTX TITAN X
119%
GeForce GTX 1660 Ti
119%
GeForce GTX 1070
127%
Radeon RX Vega 56
135%
GeForce GTX 1070 Ti
138%
Radeon RX Vega 64
140%
GeForce GTX 1080
140%
GeForce RTX 2060
146%
Radeon RX 5700
158%
GeForce RTX 2060 SUPER
163%
GeForce RTX 2070
167%
Radeon RX 5700 XT
169%
Radeon VII
174%
TITAN X Pascal
179%
GeForce GTX 1080 Ti
181%
GeForce RTX 2070 SUPER
192%
GeForce RTX 2080
204%
GeForce RTX 2080 SUPER
225%
GeForce RTX 2080 Ti
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
4 GB
Memory Type
HBM
Memory Bus
4096 bit
Bandwidth
512.0 GB/s

Render Config

Shading Units
4096
TMUs
256
ROPs
64
Compute Units
64
L1 Cache
16 KB (per CU)
L2 Cache
2 MB

Theoretical Performance

Pixel Rate
64.00 GPixel/s
Texture Rate
256.0 GTexel/s
FP16 (half) performance
8.192 TFLOPS (1:1)
FP32 (float) performance
8.192 TFLOPS
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
4.6
OpenCL
2.0
Vulkan
1.1.119
Shader Model
6.3

Fiji GPU Notes

Architecture Codename: Pirate Islands
CLRX Version: GCN 1.2
Graphics/Compute: GFX8 (gfx803)
Display Core Engine: 10.0
Unified Video Decoder: 6.0
Video Compression Engine: 3.0