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Nvidia N1X (48SM)

Nvidia N1X (48SM)
  • Graphics Processor: GB20B
  • Cores: 6144
  • TMUs / ROPs: 192 / 48
Compare Nvidia N1X (48SM) with other GPUs
Please note that the tests on the Nvidia N1X (48SM) are done on an engineering sample provided by our insiders. The data will be more accurate after the final version of this GPU is available.

Test in Benchmarks

Performance tests in graphics benchmarks and applications
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Artificial Intelligence Tests

Performance in machine learning and artificial intelligence tasks

Specifications

Detailed technical specifications of the Nvidia N1X (48SM)

General

Vendor Nvidia
Build Integrated
Released June 1, 2026
Case Laptop
Purpose Professional
Segment Mid-range
Architecture Blackwell (N1x)
GPU Codename GB20B
Apple Equivalent - Apple M5 Max GPU (40-core)
Recommended CPU - Nvidia RTX Spark N1X (20-Core) or above

Graphics Processing Unit

Base Clock 1665 MHz
Boost Clock 2418 MHz
Shading Units 6144
Texture Mapping Units (TMUs) 192
Render Output Units (ROPs) 48
Compute Units (Pipelines) 48
Tensor Cores 192
Ray-tracing Cores 48
L1 Cache 128KB per cluster
L2 Cache 24MB shared
Instructions Per Cycle 2 IPC

Raw Performance

Pixel Fill Rate 116 GPixel/s
Texture Fill Rate 464 GTexel/s
FLOPS (FP32)
29.7 TFLOPS

Physical

Interface PCIe 5.0 x16
Manufacturing TSMC
Fabrication Process 3 nm
Die Size 173.6 mm²

Memory

Memory Type System Shared
Bus 256-bit
ECC No
Memory Bandwidth
273.2 GB/s

API

Vulkan 1.4
OpenCL 3.0
CUDA 12.1
Ray Tracing Yes
DLSS DLSS 4

Competitors

1. Nvidia N1X (48SM) vs Nvidia N1X (40SM)
2. Nvidia N1X (48SM) vs Apple M5 Max GPU (40-core) (1)
3. Nvidia N1X (48SM) vs Adreno X2-90
4. Nvidia N1X (48SM) vs Apple M5 Pro GPU (20-core)
5. Nvidia N1X (48SM) vs Apple M4 Pro GPU (20-core)
6. Nvidia N1X (48SM) vs Radeon 8060S
7. Nvidia N1X (48SM) vs Radeon 890M
8. Nvidia N1X (48SM) vs Intel Arc B370
9. Nvidia N1X (48SM) vs Intel Arc B390

Comments

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akp831 June 14, 2026 at 02:28 PM
A pretty good performer but the ARM processor will hold it back
+1 Reply
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Phenro June 15, 2026 at 08:50 AM
you mean ARM processor will hold it back. It literally gets 3.2K in single core and 22K in multicore in GB6. Also, its significantly more efficient. If anything, the bandwidth will hold it back, because everything else is perfect.
+3 Reply
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akp831 June 18, 2026 at 01:29 AM
Phenro, Many applications are not natively compiled for ARM so performance will suffer a lot because they have to use slow emulation for it to run
0 Reply
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Phenro June 19, 2026 at 05:09 AM
akp831, Incorrect. Almost everything works well with ARM now. Unless you're living under a rock, things have become almost perfectly fine. And not to mention, this is NVIDIA we are talking about. Microsoft WILL make sure things work.
+2 Reply
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