AMD Radeon Instinct MI50 vs AMD Radeon Instinct MI250X
We compared two Professional market GPUs: 8GB VRAM Radeon Instinct MI50 and 128GB VRAM Radeon Instinct MI250X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI50 's Advantages
Released 3 years and 6 months late
Boost Clock has increased by 90% (3230MHz vs 1700MHz)
Lower TDP (150W vs 500W)
AMD Radeon Instinct MI250X 's Advantages
More VRAM (128GB vs 8GB)
Larger VRAM bandwidth (3277GB/s vs 322.3GB/s)
12032 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Instinct MI50
26.46 TFLOPS
Radeon Instinct MI250X
+80%
47.87 TFLOPS
Graphics Card
May 2025
Release Date
Nov 2021
Navi IV
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 5.0 x8
Bus Interface
PCIe 4.0 x16
Clock Speeds
2220 MHz
Base Clock
1000 MHz
3230 MHz
Boost Clock
1700 MHz
2518 MHz
Memory Clock
1600 MHz
Memory
8GB
Memory Size
128GB
GDDR6
Memory Type
HBM2e
128bit
Memory Bus
8192bit
322.3GB/s
Bandwidth
3277GB/s
Render Config
32
Compute Units
220
-
-
-
2048
Shading Units
14080
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)
383.0 TFLOPS
26.46 TFLOPS
FP32 (float)
47.87 TFLOPS
826.9 GFLOPS
FP64 (double)
47.87 TFLOPS
Board Design
150W
TDP
500W
450 W
Suggested PSU
900 W
1x HDMI 2.1b
3x DisplayPort 2.1a
Outputs
No outputs
1x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
Navi 44
GPU Name
Aldebaran
Navi 44 XT
GPU Variant
Aldebaran XT
RDNA 4.0
Architecture
CDNA 2.0
TSMC
Foundry
TSMC
4 nm
Process Size
6 nm
Unknown
Transistors
58.2 billion
153 mm²
Die Size
Unknown
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
