AMD Radeon Instinct MI250X vs AMD Instinct MI300X
We compared two Professional market GPUs: 128GB VRAM Radeon Instinct MI250X 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 MI250X 's Advantages
Lower TDP (500W vs 750W)
AMD Instinct MI300X 's Advantages
Released 2 years and 1 months late
Boost Clock has increased by 24% (2100MHz vs 1700MHz)
More VRAM (192GB vs 128GB)
Larger VRAM bandwidth (5300GB/s vs 3277GB/s)
5376 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Instinct MI250X
47.87 TFLOPS
AMD Instinct MI300X
+241%
163.4 TFLOPS
Graphics Card
Nov 2021
Release Date
Dec 2023
Radeon Instinct
Generation
Instinct
Professional
Type
Professional
PCIe 4.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
1000 MHz
Base Clock
1000 MHz
1700 MHz
Boost Clock
2100 MHz
1600 MHz
Memory Clock
5200 MHz
Memory
128GB
Memory Size
192GB
HBM2e
Memory Type
HBM3
8192bit
Memory Bus
8192bit
3277GB/s
Bandwidth
5300GB/s
Render Config
220
Compute Units
304
-
-
-
14080
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
383.0 TFLOPS
FP16 (half)
1300 TFLOPS
47.87 TFLOPS
FP32 (float)
163.4 TFLOPS
47.87 TFLOPS
FP64 (double)
81.7 TFLOPS
Board Design
500W
TDP
750W
900 W
Suggested PSU
1000 W
No outputs
Outputs
No outputs
2x 8-pin
Power Connectors
None
Graphics Processor
Aldebaran
GPU Name
MI300
Aldebaran XT
GPU Variant
-
CDNA 2.0
Architecture
CDNA 3.0
TSMC
Foundry
TSMC
6 nm
Process Size
5 nm
58.2 billion
Transistors
146 billion
Unknown
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
