AMD Radeon Instinct MI8 vs AMD Instinct MI300A
We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 128GB VRAM AMD Instinct MI300A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI8 's Advantages
Lower TDP (175W vs 760W)
AMD Instinct MI300A 's Advantages
Released 7 years late
Boost Clock2100MHz
More VRAM (128GB vs 4GB)
Larger VRAM bandwidth (5300GB/s vs 512.0GB/s)
10496 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Instinct MI8
8.192 TFLOPS
AMD Instinct MI300A
+1396%
122.6 TFLOPS
Graphics Card
Dec 2016
Release Date
Dec 2023
Radeon Instinct
Generation
Instinct
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
-
Base Clock
1000 MHz
-
Boost Clock
2100 MHz
500 MHz
Memory Clock
5200 MHz
Memory
4GB
Memory Size
128GB
HBM
Memory Type
HBM3
4096bit
Memory Bus
8192bit
512.0GB/s
Bandwidth
5300GB/s
Render Config
64
Compute Units
228
-
-
-
4096
Shading Units
14592
256
TMUs
880
64
ROPs
0
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
16 MB
-
-
-
Theoretical Performance
64.00 GPixel/s
Pixel Rate
0 MPixel/s
256.0 GTexel/s
Texture Rate
1496 GTexel/s
8.192 TFLOPS
FP16 (half)
980.6 TFLOPS
8.192 TFLOPS
FP32 (float)
122.6 TFLOPS
512.0 GFLOPS
FP64 (double)
61.3 TFLOPS
Board Design
175W
TDP
760W
450 W
Suggested PSU
1000 W
No outputs
Outputs
No outputs
1x 8-pin
Power Connectors
None
Graphics Processor
Fiji
GPU Name
MI300
Fiji XT CA
(215-0862120)
GPU Variant
-
GCN 3.0
Architecture
CDNA 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
8.9 billion
Transistors
146 billion
596 mm²
Die Size
1017 mm²
Graphics Features
12 (12_0)
DirectX
N/A
4.6
OpenGL
N/A
2.1
OpenCL
3.0
1.2.170
Vulkan
N/A
-
-
-
6.5
Shader Model
N/A
