AMD Radeon Instinct MI8 vs AMD Radeon Instinct MI6
We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 8GB VRAM Radeon Instinct MI6 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI8 's Advantages
Larger VRAM bandwidth (512.0GB/s vs 224.0GB/s)
1792 additional rendering cores
AMD Radeon Instinct MI6 's Advantages
Boost Clock1233MHz
More VRAM (8GB vs 4GB)
Lower TDP (150W vs 175W)
Score
Benchmark
FP32 (float)
Radeon Instinct MI8
+44%
8.192 TFLOPS
Radeon Instinct MI6
5.682 TFLOPS
Graphics Card
Dec 2016
Release Date
Dec 2016
Radeon Instinct
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1120 MHz
-
Boost Clock
1233 MHz
500 MHz
Memory Clock
1750 MHz
Memory
4GB
Memory Size
8GB
HBM
Memory Type
GDDR5
4096bit
Memory Bus
256bit
512.0GB/s
Bandwidth
224.0GB/s
Render Config
64
Compute Units
36
-
-
-
4096
Shading Units
2304
256
TMUs
144
64
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
2 MB
-
-
-
Theoretical Performance
64.00 GPixel/s
Pixel Rate
39.46 GPixel/s
256.0 GTexel/s
Texture Rate
177.6 GTexel/s
8.192 TFLOPS
FP16 (half)
5.682 TFLOPS
8.192 TFLOPS
FP32 (float)
5.682 TFLOPS
512.0 GFLOPS
FP64 (double)
355.1 GFLOPS
Board Design
175W
TDP
150W
450 W
Suggested PSU
450 W
No outputs
Outputs
No outputs
1x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Fiji
GPU Name
Ellesmere
Fiji XT CA
(215-0862120)
GPU Variant
Ellesmere XT
GCN 3.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
8.9 billion
Transistors
5.7 billion
596 mm²
Die Size
232 mm²
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.2.170
Vulkan
1.2
-
-
-
6.5
Shader Model
6.4
