AMD Radeon Instinct MI8 vs AMD Radeon Instinct MI50
We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 8GB VRAM Radeon Instinct MI50 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI8 's Advantages
Larger VRAM bandwidth (512.0GB/s vs 322.3GB/s)
2048 additional rendering cores
AMD Radeon Instinct MI50 's Advantages
Released 8 years and 5 months late
Boost Clock3230MHz
More VRAM (8GB vs 4GB)
Lower TDP (150W vs 175W)
Score
Benchmark
FP32 (float)
Radeon Instinct MI8
8.192 TFLOPS
Radeon Instinct MI50
+222%
26.46 TFLOPS
Graphics Card
Dec 2016
Release Date
May 2025
Radeon Instinct
Generation
Navi IV
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 5.0 x8
Clock Speeds
-
Base Clock
2220 MHz
-
Boost Clock
3230 MHz
500 MHz
Memory Clock
2518 MHz
Memory
4GB
Memory Size
8GB
HBM
Memory Type
GDDR6
4096bit
Memory Bus
128bit
512.0GB/s
Bandwidth
322.3GB/s
Render Config
64
Compute Units
32
-
-
-
4096
Shading Units
2048
256
TMUs
128
64
ROPs
64
-
-
-
-
RT Cores
32
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
4 MB
-
L3 Cache
32 MB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
206.7 GPixel/s
256.0 GTexel/s
Texture Rate
413.4 GTexel/s
8.192 TFLOPS
FP16 (half)
52.92 TFLOPS
8.192 TFLOPS
FP32 (float)
26.46 TFLOPS
512.0 GFLOPS
FP64 (double)
826.9 GFLOPS
Board Design
175W
TDP
150W
450 W
Suggested PSU
450 W
No outputs
Outputs
1x HDMI 2.1b
3x DisplayPort 2.1a
1x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Fiji
GPU Name
Navi 44
Fiji XT CA
(215-0862120)
GPU Variant
Navi 44 XT
GCN 3.0
Architecture
RDNA 4.0
TSMC
Foundry
TSMC
28 nm
Process Size
4 nm
8.9 billion
Transistors
Unknown
596 mm²
Die Size
153 mm²
Graphics Features
12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
2.2
1.2.170
Vulkan
1.3
-
-
-
6.5
Shader Model
6.8
