AMD Radeon 550X Mobile vs NVIDIA RTX Spark (MediaTek AHJ11488B)
GPU Specs Compare
Graphics Card
Release Date
Apr 2018
-
Generation
Mobility Radeon
-
Type
Mobile
-
Bus Interface
PCIe 3.0 x8
-
Clock Speeds
Base Clock
1100 MHz
-
Boost Clock
1287 MHz
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Memory Clock
1500 MHz
-
Memory
Memory Size
4GB
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Memory Type
GDDR5
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Memory Bus
64bit
-
Bandwidth
48.00GB/s
-
Render Config
Compute Units
10
-
Shading Units
640
-
TMUs
40
-
ROPs
16
-
L1 Cache
16 KB (per CU)
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L2 Cache
256 KB
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Theoretical Performance
Pixel Rate
20.59 GPixel/s
-
Texture Rate
51.48 GTexel/s
-
FP16 (half)
1.647 TFLOPS
-
FP32 (float)
1.647 TFLOPS
-
FP64 (double)
103.0 GFLOPS
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Graphics Processor
GPU Name
Polaris 23
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GPU Variant
Polaris 23 MXT
-
Architecture
GCN 4.0
-
Foundry
GlobalFoundries
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Process Size
14 nm
-
Transistors
2.2 billion
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Die Size
103 mm²
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Board Design
TDP
50W
-
Outputs
No outputs
-
Power Connectors
None
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Graphics Features
DirectX
12 (12_0)
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OpenGL
4.6
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OpenCL
2.1
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Vulkan
1.2
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Shader Model
6.4
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General Parameters
Release Date
-
Jan 2026
Type
-
Laptop
Core Architecture
-
N1X
Integrated Graphics
-
GB20B "Blackwell"
Generation
-
Spark (GB10)
Package
Manufacturing Process
-
3 nm
Power Consumption
-
64 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
-
1500 MHz
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