AMD Radeon Instinct MI355X vs AMD Radeon Graphics 448SP
GPU Specs Compare
Graphics Card
Release Date
Jun 2025
Jan 2021
Generation
Radeon Instinct
Lucienne
Type
Professional
Integrated
Bus Interface
PCIe 5.0 x16
IGP
Clock Speeds
Base Clock
1000 MHz
300 MHz
Boost Clock
2400 MHz
1800 MHz
Memory Clock
2000 MHz
System Shared
Memory
Memory Size
288GB
System Shared
Memory Type
HBM3e
System Shared
Memory Bus
8192bit
System Shared
Bandwidth
8.19TB/s
System Dependent
Render Config
Compute Units
256
7
Shading Units
16384
448
TMUs
1024
32
ROPs
0
8
Tensor Cores
1216
-
L1 Cache
32 KB (per CU)
-
L2 Cache
32 MB
-
L3 Cache
256 MB
-
Theoretical Performance
Pixel Rate
0 MPixel/s
14.40 GPixel/s
Texture Rate
2457.6 GTexel/s
57.60 GTexel/s
FP16 (half)
78.64 TFLOPS
3.226 TFLOPS
FP32 (float)
78.64 TFLOPS
1.613 TFLOPS
FP64 (double)
39.32 TFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
MI350 256CU
Lucienne
Architecture
CDNA 4.0
GCN 5.1
Foundry
TSMC
TSMC
Process Size
3 nm
7 nm
Transistors
185 billion
9.8 billion
Die Size
Unknown
156 mm²
Board Design
TDP
1400W
25W
Suggested PSU
1800 W
-
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.2
Shader Model
N/A
6.4