AMD Radeon Instinct MI50 vs AMD Instinct MI300X
We compared two Professional market GPUs: 8GB VRAM Radeon Instinct MI50 and 192GB VRAM AMD Instinct MI300X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI50 's Advantages
Released 1 years and 5 months late
Boost Clock has increased by 54% (3230MHz vs 2100MHz)
Lower TDP (150W vs 750W)
AMD Instinct MI300X 's Advantages
More VRAM (192GB vs 8GB)
Larger VRAM bandwidth (5300GB/s vs 322.3GB/s)
17408 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Instinct MI50
26.46 TFLOPS
AMD Instinct MI300X
+517%
163.4 TFLOPS
Graphics Card
May 2025
Release Date
Dec 2023
Navi IV
Generation
Instinct
Professional
Type
Professional
PCIe 5.0 x8
Bus Interface
PCIe 5.0 x16
Clock Speeds
2220 MHz
Base Clock
1000 MHz
3230 MHz
Boost Clock
2100 MHz
2518 MHz
Memory Clock
5200 MHz
Memory
8GB
Memory Size
192GB
GDDR6
Memory Type
HBM3
128bit
Memory Bus
8192bit
322.3GB/s
Bandwidth
5300GB/s
Render Config
32
Compute Units
304
-
-
-
2048
Shading Units
19456
128
TMUs
880
64
ROPs
0
-
-
-
32
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
16 MB
32 MB
L3 Cache
-
Theoretical Performance
206.7 GPixel/s
Pixel Rate
0 MPixel/s
413.4 GTexel/s
Texture Rate
1496 GTexel/s
52.92 TFLOPS
FP16 (half)
1300 TFLOPS
26.46 TFLOPS
FP32 (float)
163.4 TFLOPS
826.9 GFLOPS
FP64 (double)
81.7 TFLOPS
Board Design
150W
TDP
750W
450 W
Suggested PSU
1000 W
1x HDMI 2.1b
3x DisplayPort 2.1a
Outputs
No outputs
1x 8-pin
Power Connectors
None
Graphics Processor
Navi 44
GPU Name
MI300
Navi 44 XT
GPU Variant
-
RDNA 4.0
Architecture
CDNA 3.0
TSMC
Foundry
TSMC
4 nm
Process Size
5 nm
Unknown
Transistors
146 billion
153 mm²
Die Size
1017 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
N/A
4.6
OpenGL
N/A
2.2
OpenCL
3.0
1.3
Vulkan
N/A
-
-
-
6.8
Shader Model
N/A
