AMD Instinct MI300A vs AMD Instinct MI300X
We compared two Professional market GPUs: 128GB VRAM AMD Instinct MI300A and 192GB VRAM AMD Instinct MI300X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Instinct MI300X 's Advantages
More VRAM (192GB vs 128GB)
4864 additional rendering cores
Lower TDP (750W vs 760W)
Score
Benchmark
FP32 (float)
AMD Instinct MI300A
122.6 TFLOPS
AMD Instinct MI300X
+33%
163.4 TFLOPS
Graphics Card
Dec 2023
Release Date
Dec 2023
Instinct
Generation
Instinct
Professional
Type
Professional
PCIe 5.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
1000 MHz
Base Clock
1000 MHz
2100 MHz
Boost Clock
2100 MHz
5200 MHz
Memory Clock
5200 MHz
Memory
128GB
Memory Size
192GB
HBM3
Memory Type
HBM3
8192bit
Memory Bus
8192bit
5300GB/s
Bandwidth
5300GB/s
Render Config
228
Compute Units
304
-
-
-
14592
Shading Units
19456
880
TMUs
880
0
ROPs
0
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
16 MB
L2 Cache
16 MB
-
-
-
Theoretical Performance
0 MPixel/s
Pixel Rate
0 MPixel/s
1496 GTexel/s
Texture Rate
1496 GTexel/s
980.6 TFLOPS
FP16 (half)
1300 TFLOPS
122.6 TFLOPS
FP32 (float)
163.4 TFLOPS
61.3 TFLOPS
FP64 (double)
81.7 TFLOPS
Board Design
760W
TDP
750W
1000 W
Suggested PSU
1000 W
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
MI300
GPU Name
MI300
-
-
-
CDNA 3.0
Architecture
CDNA 3.0
TSMC
Foundry
TSMC
5 nm
Process Size
5 nm
146 billion
Transistors
146 billion
1017 mm²
Die Size
1017 mm²
Graphics Features
N/A
DirectX
N/A
N/A
OpenGL
N/A
3.0
OpenCL
3.0
N/A
Vulkan
N/A
-
-
-
N/A
Shader Model
N/A
