AMD Radeon Instinct MI355X vs AMD Steam Deck OLED GPU
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Nov 2023
Generation
Radeon Instinct
Console GPU
Type
Professional
Game console
Bus Interface
PCIe 5.0 x16
—
Clock Speeds
Base Clock
1000 MHz
1000 MHz
Boost Clock
2400 MHz
1600 MHz
Memory Clock
2000 MHz
1375 MHz
Memory
Memory Size
288GB
16GB
Memory Type
HBM3e
LPDDR5
Memory Bus
8192bit
128bit
Bandwidth
8.19TB/s
88.00GB/s
Render Config
Compute Units
256
8
Shading Units
16384
512
TMUs
1024
32
ROPs
0
16
Tensor Cores
1216
—
L1 Cache
32 KB (per CU)
128 KB per Array
L2 Cache
32 MB
1024 KB
L3 Cache
256 MB
8 MB
RT Cores
—
8
Theoretical Performance
Pixel Rate
0 MPixel/s
25.60 GPixel/s
Texture Rate
2457.6 GTexel/s
51.20 GTexel/s
FP16 (half)
78.64 TFLOPS
3.277 TFLOPS
FP32 (float)
78.64 TFLOPS
1.638 TFLOPS
FP64 (double)
39.32 TFLOPS
102.4 GFLOPS
Graphics Processor
GPU Name
MI350 256CU
Sephiroth
Architecture
CDNA 4.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
3 nm
6 nm
Transistors
185 billion
2.4 billion
Die Size
Unknown
131 mm²
Board Design
TDP
1400W
15W
Suggested PSU
1800 W
—
Outputs
No outputs
1x USB Type-C
Power Connectors
None
—
Graphics Features
DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
2.0
Vulkan
N/A
1.2
Shader Model
N/A
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.