NVIDIA N1 16SM vs NVIDIA RTX 4000 Mobile Ada Generation Comparison

Two NVIDIA GPUs in the database occupy different corners of the mobile and IGP space. The N1 16SM is a Blackwell 2.0 IGP built on the GB20B chip with 128 GB of LPDDR5X memory, while the RTX 4000 Mobile Ada Generation is an Ada Lovelace part built on AD104 with 12 GB of GDDR6 and a much larger compute configuration. No benchmark entries are recorded for either product, so the analysis below relies on the recorded specifications.

FAQ

Q: Which GPU has more shading units?

A: The RTX 4000 Mobile Ada Generation has 7424 shading units; the N1 16SM has 2048.

Q: How do their memory subsystems differ?

A: The N1 16SM has 128 GB LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The RTX 4000 Mobile Ada has 12 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth.

Q: Which GPU has the higher boost clock?

A: The N1 16SM boosts to 2346 MHz, while the RTX 4000 Mobile Ada boosts to 1665 MHz.

Q: Are both GPUs manufactured on the same process node?

A: Yes, both are recorded as 5 nm TSMC parts.

Q: What graphics API support is listed?

A: The N1 16SM lists DirectX N/A, OpenGL N/A, and Vulkan N/A. The RTX 4000 Mobile Ada lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the transistor count for each?

A: The RTX 4000 Mobile Ada has 35,800 million transistors. The N1 16SM transistor count is not recorded.

Architecture Differences

The two parts use different NVIDIA architectures. The N1 16SM uses Blackwell 2.0 on the GB20B chip and belongs to the Blackwell IGP (N1x) generation. The RTX 4000 Mobile Ada uses Ada Lovelace on the AD104 chip and belongs to the Ada-MW generation. Both are 5 nm TSMC products, so process node does not separate them.

Die size and transistor density differ. The N1 16SM die is 382 mm²; the RTX 4000 Mobile Ada die is 294 mm². The RTX 4000 Mobile Ada records 35,800 million transistors and a transistor density of 121.8M / mm². The N1 16SM transistor count is not listed. Cache specifications are not recorded for either part.

Core resources differ sharply. The RTX 4000 Mobile Ada has 7424 shading units, 232 texture mapping units, 80 ROPs, 58 RT cores, and 232 tensor cores. The N1 16SM has 2048 shading units, 128 texture mapping units, 24 ROPs, 16 RT cores, and 64 tensor cores. The N1 16SM therefore carries a smaller graphics block, while the RTX 4000 Mobile Ada carries the larger set of fixed-function and compute resources.

Feature support also differs. The N1 16SM lists DirectX N/A, OpenGL N/A, and Vulkan N/A, while the RTX 4000 Mobile Ada lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display output is 1x HDMI on the N1 16SM and Portable Device Dependent on the RTX 4000 Mobile Ada. The N1 16SM uses PCIe 5.0 x16; the RTX 4000 Mobile Ada uses PCIe 4.0 x16. Both are IGP slot width and both list no power connectors.

Where Each One Wins

Because no benchmark scores are recorded, the win split comes from recorded specifications. The N1 16SM leads in memory capacity: 128 GB versus 12 GB. It also leads in memory bus width, 256-bit versus 192-bit, and in boost clock, 2346 MHz versus 1665 MHz. The N1 16SM uses PCIe 5.0 x16, while the RTX 4000 Mobile Ada uses PCIe 4.0 x16, giving the N1 a newer bus interface in the database.

The RTX 4000 Mobile Ada leads in almost every throughput-related specification. It has 7424 shading units versus 2048, 232 TMUs versus 128, 80 ROPs versus 24, 58 RT cores versus 16, and 232 tensor cores versus 64. Its FP32 compute is 24.72 TFLOPS versus 9.609 TFLOPS, and FP16 is also 24.72 TFLOPS versus 9.609 TFLOPS. Texture rate is 386.3 GTexel/s versus 300.3 GTexel/s, and pixel rate is 133.2 GPixel/s versus 56.30 GPixel/s. Memory bandwidth is 432.0 GB/s versus 273.2 GB/s. The RTX 4000 Mobile Ada also has a higher base clock, 1290 MHz versus 741 MHz, and a higher memory clock, 2250 MHz versus 1067 MHz.

Specification Differences

| Field | NVIDIA N1 16SM | NVIDIA RTX 4000 Mobile Ada Generation |

|---|---|---|

| Chip | GB20B | AD104 |

| Architecture | Blackwell 2.0 | Ada Lovelace |

| Generation | Blackwell IGP (N1x) | Ada-MW |

| Series | Not recorded | GeForce 40-series |

| Die size | 382 mm² | 294 mm² |

| Transistors | Not recorded | 35,800 million |

| Transistor density | Not recorded | 121.8M / mm² |

| Base clock | 741 MHz | 1290 MHz |

| Boost clock | 2346 MHz | 1665 MHz |

| Memory clock | 1067 MHz, 8.5 Gbps effective | 2250 MHz, 18 Gbps effective |

| Memory size | 128 GB | 12 GB |

| Memory type | LPDDR5X | GDDR6 |

| Memory bus width | 256 bit | 192 bit |

| Memory bandwidth | 273.2 GB/s | 432.0 GB/s |

| Shading units | 2048 | 7424 |

| TMUs | 128 | 232 |

| ROPs | 24 | 80 |

| RT cores | 16 | 58 |

| Tensor cores | 64 | 232 |

| Pixel rate | 56.30 GPixel/s | 133.2 GPixel/s |

| Texture rate | 300.3 GTexel/s | 386.3 GTexel/s |

| FP32 | 9.609 TFLOPS | 24.72 TFLOPS |

| FP16 | 9.609 TFLOPS (1:1) | 24.72 TFLOPS (1:1) |

| TDP | Not recorded | 110 W |

| Bus interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display outputs | 1x HDMI | Portable Device Dependent |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Release date | 2026-05-31 | 2023-03-20 |

| Predecessor | Not recorded | Ampere-MW |

| Successor | Not recorded | Blackwell-MW |

Fields not shown are identical in the database: manufacturer NVIDIA, process node 5 nm, foundry TSMC, slot width IGP, power connectors None, production status Active, percentile against all GPUs 50, and average benchmark score 0.

Head-to-Head Benchmarks

The database records no head-to-head benchmark results for this pairing. Both products have an average benchmark score of 0 and a 50th percentile placement in the all-GPU percentile list, and no benchmark entries are attached to either. The following comparison therefore uses the largest recorded specification advantages rather than measured frame rates or compute scores.

• Memory capacity: N1 16SM records 128 GB; RTX 4000 Mobile Ada records 12 GB.
• Compute throughput: RTX 4000 Mobile Ada records 24.72 TFLOPS FP32; N1 16SM records 9.609 TFLOPS.
• Boost clock: N1 16SM records 2346 MHz; RTX 4000 Mobile Ada records 1665 MHz.
• Memory bandwidth: RTX 4000 Mobile Ada records 432.0 GB/s; N1 16SM records 273.2 GB/s.
• Graphics resources: RTX 4000 Mobile Ada records 7424 shading units, 58 RT cores, and 232 tensor cores; N1 16SM records 2048 shading units, 16 RT cores, and 64 tensor cores.
• Pixel rate: RTX 4000 Mobile Ada records 133.2 GPixel/s; N1 16SM records 56.30 GPixel/s.
• Texture rate: RTX 4000 Mobile Ada records 386.3 GTexel/s; N1 16SM records 300.3 GTexel/s.
• Bus interface: N1 16SM records PCIe 5.0 x16; RTX 4000 Mobile Ada records PCIe 4.0 x16.

The Verdict

Without benchmark scores, the verdict is a specification-based split. The N1 16SM is the part for memory-capacity-sensitive work: 128 GB LPDDR5X on a 256-bit bus, PCIe 5.0 x16, and a 2346 MHz boost clock. The RTX 4000 Mobile Ada Generation is the part for graphics and compute work: 7424 shading units, 58 RT cores, 232 tensor cores, 24.72 TFLOPS FP32, 432.0 GB/s memory bandwidth, and the recorded DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 API stack. The N1 16SM lists no DirectX, OpenGL, or Vulkan support, which removes it from the graphics API workloads covered by the database. The RTX 4000 Mobile Ada also carries the higher base clock, 1290 MHz versus 741 MHz, but the N1 16SM has the higher boost clock, 2346 MHz versus 1665 MHz. The recorded data does not include measured benchmark scores, so the selection between these two parts follows from their specification records.