AMD Radeon Instinct MI355X vs NVIDIA DGX Spark (MediaTek AHJ11488B)
GPU Specs Compare
Graphics Card
Release Date
Jun 2025
-
Generation
Radeon Instinct
-
Type
Professional
-
Bus Interface
PCIe 5.0 x16
-
Clock Speeds
Base Clock
1000 MHz
-
Boost Clock
2400 MHz
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Memory Clock
2000 MHz
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Memory
Memory Size
288GB
-
Memory Type
HBM3e
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Memory Bus
8192bit
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Bandwidth
8.19TB/s
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Render Config
Compute Units
256
-
Shading Units
16384
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TMUs
1024
-
ROPs
0
-
Tensor Cores
1216
-
L1 Cache
32 KB (per CU)
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L2 Cache
32 MB
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L3 Cache
256 MB
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Theoretical Performance
Pixel Rate
0 MPixel/s
-
Texture Rate
2457.6 GTexel/s
-
FP16 (half)
78.64 TFLOPS
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FP32 (float)
78.64 TFLOPS
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FP64 (double)
39.32 TFLOPS
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Graphics Processor
GPU Name
MI350 256CU
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Architecture
CDNA 4.0
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Foundry
TSMC
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Process Size
3 nm
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Transistors
185 billion
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Die Size
Unknown
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Board Design
TDP
1400W
-
Suggested PSU
1800 W
-
Outputs
No outputs
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Power Connectors
None
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Graphics Features
DirectX
N/A
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OpenGL
N/A
-
OpenCL
3.0
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Vulkan
N/A
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Shader Model
N/A
-
General Parameters
Release Date
-
Oct 2025
Type
-
Laptop
Core Architecture
-
N1X
Integrated Graphics
-
GB20B "Blackwell"
Generation
-
RTX Spark (GB10 (N1X))
Package
Manufacturing Process
-
3 nm
Power Consumption
-
140 W
Foundry
-
TSMC
Die Size
-
208 mm²
Package
-
FC-BGA
CPU Performance
Performance Core Base Frequency
-
2.8 GHz
Performance Core Turbo Frequency
-
4 GHz
Efficiency Core Base Frequency
-
1.5 GHz
Efficiency Core Turbo Frequency
-
2.8 GHz
Total Core Count
-
20
Total Thread Count
-
20
Bus Frequency
-
100 MHz
Multiplier
-
28.0
L1 Cache
-
128 KB per core
L2 Cache
-
2 MB per core
L3 Cache
-
8 MB shared
Unlocked Multiplier
-
No
SMP
-
1
Memory Parameters
Memory Types
-
LPDDR5X-8533
Max Memory Channels
-
4
Max Memory Bandwidth
-
273.1 GB/s
ECC Memory Support
-
No
Miscellaneous
PCIe Version
-
0