NVIDIA Rubin GPU vs NVIDIA DGX Spark (MediaTek AHJ11488B)
GPU Specs Compare
Graphics Card
Release Date
Jan 2026
-
Generation
Server Rubin
-
Type
Desktop
-
Bus Interface
PCIe 6.0 x16
-
Clock Speeds
Base Clock
700 MHz
-
Boost Clock
2267 MHz
-
Memory Clock
2695 MHz
-
Memory
Memory Size
288GB
-
Memory Type
HBM4
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Memory Bus
16384bit
-
Bandwidth
22.1TB/s
-
Render Config
SM Count
224
-
Shading Units
28672
-
TMUs
896
-
ROPs
24
-
Tensor Cores
896
-
L1 Cache
256 KB (per SM)
-
L2 Cache
128 MB
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Theoretical Performance
Pixel Rate
54.41 GPixel/s
-
Texture Rate
2031.2 GTexel/s
-
FP16 (half)
260.0 TFLOPS
-
FP32 (float)
130.0 TFLOPS
-
FP64 (double)
32.50 TFLOPS
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Graphics Processor
GPU Name
GR100
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Architecture
Rubin
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Foundry
TSMC
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Process Size
3 nm
-
Transistors
336 billion
-
Die Size
1456 mm²
-
Board Design
TDP
2300W
-
Suggested PSU
2700 W
-
Outputs
No outputs
-
Graphics Features
DirectX
N/A
-
OpenGL
N/A
-
OpenCL
3.0
-
Vulkan
N/A
-
CUDA
10.7
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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