Radeon Instinct MI300X vs Radeon Instinct MI8
We compared two Professional market GPUs: 192GB VRAM Radeon Instinct MI300X and 4GB VRAM Radeon Instinct MI8 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon Instinct MI300X 's Advantages
Released 7 years late
Boost Clock2100MHz
More VRAM (192GB vs 4GB)
Larger VRAM bandwidth (5171GB/s vs 512.0GB/s)
15360 additional rendering cores
Radeon Instinct MI8 's Advantages
Lower TDP (175W vs 750W)
Score
Benchmark
FP32 (float)
Radeon Instinct MI300X
+897%
81720
Radeon Instinct MI8
8192
Graphics Card
Dec 2023
Release Date
Dec 2016
Radeon Instinct
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 5.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1000 MHz
Base Clock
-
2100 MHz
Boost Clock
-
2525 MHz
Memory Clock
500 MHz
Memory
192GB
Memory Size
4GB
HBM3
Memory Type
HBM
8192bit
Memory Bus
4096bit
5171GB/s
Bandwidth
512.0GB/s
Render Config
304
Compute Units
64
19456
Shading Units
4096
1216
TMUs
256
0
ROPs
64
1216
Tensor Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
16 MB
L2 Cache
2 MB
256 MB
L3 Cache
-
Theoretical Performance
0 MPixel/s
Pixel Rate
64.00 GPixel/s
2554 GTexel/s
Texture Rate
256.0 GTexel/s
653.7 TFLOPS
FP16 (half)
8.192 TFLOPS
81.72 TFLOPS
FP32 (float)
8.192 TFLOPS
81.72 TFLOPS
FP64 (double)
512.0 GFLOPS
Board Design
750W
TDP
175W
1150 W
Suggested PSU
450 W
No outputs
Outputs
No outputs
None
Power Connectors
1x 8-pin
Graphics Processor
Aqua Vanjaram
GPU Name
Fiji
-
GPU Variant
Fiji XT CA
(215-0862120)
CDNA 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
153 billion
Transistors
8.9 billion
1017 mm²
Die Size
596 mm²
Graphics Features
N/A
DirectX
12 (12_0)
N/A
OpenGL
4.6
3.0
OpenCL
2.1
N/A
Vulkan
1.2.170
N/A
Shader Model
6.5
