AMD Radeon 660M vs AMD Radeon Instinct MI350X
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Jun 2025
Generation
Rembrandt
Radeon Instinct
Type
Integrated
Professional
Bus Interface
PCIe 4.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
1500 MHz
1000 MHz
Boost Clock
1900 MHz
2200 MHz
Memory Clock
System Shared
2000 MHz
Memory
Memory Size
System Shared
288GB
Memory Type
System Shared
HBM3e
Memory Bus
System Shared
8192bit
Bandwidth
System Dependent
8.19TB/s
Render Config
Compute Units
6
256
Shading Units
384
16384
TMUs
24
1024
ROPs
16
0
RT Cores
6
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
16 MB
Tensor Cores
-
1024
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
0 MPixel/s
Texture Rate
45.60 GTexel/s
2252.8 GTexel/s
FP16 (half)
2.918 TFLOPS
72.09 TFLOPS
FP32 (float)
1459 GFLOPS
72.09 TFLOPS
FP64 (double)
91.20 GFLOPS
36.04 TFLOPS
Graphics Processor
GPU Name
Rembrandt
MI350 256CU
Architecture
RDNA 2.0
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
6 nm
3 nm
Transistors
13.1 billion
185 billion
Die Size
210 mm²
Unknown
Board Design
TDP
15W
1000W
Outputs
No outputs
No outputs
Power Connectors
None
None
Suggested PSU
-
1400 W
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.0
3.0
Vulkan
1.2
N/A
Shader Model
6.5
N/A
📊 Benchmark
3DMark Time Spy
1,537
-
3DMark Time Spy Extreme
701
-