AMD Radeon Instinct MI355X vs AMD Radeon Sky 900
GPU Specs Compare
Graphics Card
Release Date
Jun 2025
Mar 2013
Generation
Radeon Instinct
Radeon Sky
Type
Professional
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
825 MHz
Boost Clock
2400 MHz
950 MHz
Memory Clock
2000 MHz
1250 MHz
Memory
Memory Size
288GB
3GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
384bit
Bandwidth
8.19TB/s
240.0GB/s
Render Config
Compute Units
256
28
Shading Units
16384
1792
TMUs
1024
112
ROPs
0
32
Tensor Cores
1216
-
L1 Cache
32 KB (per CU)
16 KB (per CU)
L2 Cache
32 MB
768 KB
L3 Cache
256 MB
-
Theoretical Performance
Pixel Rate
0 MPixel/s
30.40 GPixel/s
Texture Rate
2457.6 GTexel/s
106.4 GTexel/s
FP16 (half)
78.64 TFLOPS
-
FP32 (float)
78.64 TFLOPS
3.405 TFLOPS
FP64 (double)
39.32 TFLOPS
851.2 GFLOPS
Graphics Processor
GPU Name
MI350 256CU
Tahiti
Architecture
CDNA 4.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
185 billion
4.313 billion
Die Size
Unknown
352 mm²
GPU Variant
-
Orthrus
Board Design
TDP
1400W
300W
Suggested PSU
1800 W
700 W
Outputs
No outputs
1x DVI1x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Graphics Features
DirectX
N/A
12 (11_1)
OpenGL
N/A
4.6
OpenCL
3.0
1.2
Vulkan
N/A
1.2
Shader Model
N/A
5.1