AMD Radeon Instinct MI8 vs AMD Radeon Instinct MI25
We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 16GB VRAM Radeon Instinct MI25 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 436.2GB/s)
Lower TDP (175W vs 300W)
AMD Radeon Instinct MI25 's Advantages
Released 6 months late
Boost Clock1500MHz
More VRAM (16GB vs 4GB)
Score
Benchmark
FP32 (float)
Radeon Instinct MI8
8.192 TFLOPS
Radeon Instinct MI25
+50%
12.29 TFLOPS
Graphics Card
Dec 2016
Release Date
Jun 2017
Radeon Instinct
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1400 MHz
-
Boost Clock
1500 MHz
500 MHz
Memory Clock
852 MHz
Memory
4GB
Memory Size
16GB
HBM
Memory Type
HBM2
4096bit
Memory Bus
2048bit
512.0GB/s
Bandwidth
436.2GB/s
Render Config
64
Compute Units
64
-
-
-
4096
Shading Units
4096
256
TMUs
256
64
ROPs
64
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
4 MB
-
-
-
Theoretical Performance
64.00 GPixel/s
Pixel Rate
96.00 GPixel/s
256.0 GTexel/s
Texture Rate
384.0 GTexel/s
8.192 TFLOPS
FP16 (half)
24.58 TFLOPS
8.192 TFLOPS
FP32 (float)
12.29 TFLOPS
512.0 GFLOPS
FP64 (double)
768.0 GFLOPS
Board Design
175W
TDP
300W
450 W
Suggested PSU
700 W
No outputs
Outputs
No outputs
1x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
Fiji
GPU Name
Vega 10
Fiji XT CA
(215-0862120)
GPU Variant
Vega 10 XT GL
(215-0894124)
GCN 3.0
Architecture
GCN 5.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
8.9 billion
Transistors
12.5 billion
596 mm²
Die Size
495 mm²
Graphics Features
12 (12_0)
DirectX
12 (12_1)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.2.170
Vulkan
1.2
-
-
-
6.5
Shader Model
6.4
