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