NVIDIA N1 20SM vs NVIDIA RTX 4000 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data provides no direct head-to-head benchmark results between the NVIDIA N1 20SM and the NVIDIA RTX 4000 Ada Generation. However, the database contains measurable performance data for the RTX 4000 Ada Generation, while the N1 20SM has no benchmark entries at all. This asymmetry is itself a significant finding.

The RTX 4000 Ada Generation posts a Geekbench OpenCL score of 146,593 and a Geekbench Vulkan score of 123,842. Its average benchmark score across recorded tests is 135,218. The N1 20SM shows an average benchmark score of 0, with no test entries in the database. The percentile ranking reinforces this gap: the RTX 4000 Ada Generation sits at the 95th percentile among all GPUs, while the N1 20SM sits at the 50th percentile.

The nearest rivals for the RTX 4000 Ada Generation provide context for its standing. The NVIDIA A10M scores 135,230, which is essentially identical (0% delta). The AMD Radeon PRO W6800 scores 135,396, a 0.1% advantage over the RTX 4000 Ada Generation. The AMD Radeon Pro W6800X Duo scores 135,774, 0.4% higher. The AMD Radeon PRO V620 scores 136,472, 0.9% higher. These margins are small, indicating the RTX 4000 Ada Generation competes tightly with those workstation cards.

The absence of any benchmark scores for the N1 20SM means the data cannot support a direct comparison of compute performance. The N1 20SM is an integrated graphics processor (IGP) with a 50th percentile overall ranking, which places it in the middle of the database distribution. The RTX 4000 Ada Generation is a discrete workstation card in the 95th percentile, a position backed by its recorded OpenCL and Vulkan results.

The Verdict

The data clearly favors the NVIDIA RTX 4000 Ada Generation for any task requiring measurable compute performance. The RTX 4000 Ada Generation delivers 26.73 TFLOPS of FP32 and FP16 performance, while the N1 20SM delivers 12.01 TFLOPS in both. That is a 2.2x advantage for the discrete card in raw floating-point throughput.

The RTX 4000 Ada Generation also leads in pixel throughput, producing 139.2 GPixel/s versus 56.30 GPixel/s for the N1 20SM. Texture rate favors the RTX 4000 Ada Generation as well, at 417.6 GTexel/s versus 375.4 GTexel/s. The N1 20SM does hold an edge in memory capacity, with 128 GB of LPDDR5X compared to 20 GB of GDDR6, but the RTX 4000 Ada Generation counters with higher bandwidth at 360.0 GB/s versus 273.2 GB/s.

Users seeking a workstation GPU with established benchmark results should select the RTX 4000 Ada Generation. Its 95th percentile ranking and recorded scores in both OpenCL and Vulkan confirm it performs at a high level. The N1 20SM, with no recorded benchmarks and a mid-pack percentile, cannot be validated as a compute performer from the available data. The RTX 4000 Ada Generation also offers API support including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, whereas the N1 20SM lists N/A for all three APIs.

Architecture Differences

The two GPUs come from different NVIDIA architectures. The N1 20SM uses the Blackwell 2.0 architecture with the GB20B chip, belonging to the Blackwell IGP generation. The RTX 4000 Ada Generation uses the Ada Lovelace architecture with the AD104 chip, part of the Workstation Ada generation. Both are fabricated on a 5 nm process at TSMC, so the manufacturing node is identical.

The N1 20SM is an integrated graphics processor, as its slot width of "IGP" confirms. The RTX 4000 Ada Generation is a discrete single-slot card measuring 245 mm in length and 112 mm in height. The N1 20SM has no power connectors and an unknown TDP, while the RTX 4000 Ada Generation has a 130 W TDP, a single 16-pin power connector, and a suggested power supply of 300 W.

Transistor counts differ substantially. The RTX 4000 Ada Generation contains 35,800 million transistors on a 294 mm² die, giving a transistor density of 121.8M per mm². The N1 20SM has an unknown transistor count but a larger die at 382 mm². The bus interface also differs: the N1 20SM uses PCIe 5.0 x16, while the RTX 4000 Ada Generation uses PCIe 4.0 x16.

Display outputs diverge as well. The N1 20SM provides a single HDMI output. The RTX 4000 Ada Generation provides four DisplayPort 1.4a outputs. The RTX 4000 Ada Generation supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the N1 20SM lists no API support. The N1 20SM has a release date of May 31, 2026, while the RTX 4000 Ada Generation was released on August 8, 2023.

Specification Differences

The table below highlights only the fields where the two GPUs differ, based on recorded data.

| Specification | NVIDIA N1 20SM | NVIDIA RTX 4000 Ada Generation |

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

| Architecture | Blackwell 2.0 | Ada Lovelace |

| Chip | GB20B | AD104 |

| Generation | Blackwell IGP (N1x) | Workstation Ada |

| Transistors | unknown | 35,800 million |

| Die Size | 382 mm² | 294 mm² |

| Transistor Density | null | 121.8M / mm² |

| Base Clock | 741 MHz | 1500 MHz |

| Boost Clock | 2346 MHz | 2175 MHz |

| Memory Clock | 1067 MHz 8.5 Gbps effective | 2250 MHz 18 Gbps effective |

| Memory Size | 128 GB | 20 GB |

| Memory Type | LPDDR5X | GDDR6 |

| Memory Bus Width | 256 bit | 160 bit |

| Memory Bandwidth | 273.2 GB/s | 360.0 GB/s |

| Shading Units | 2560 | 6144 |

| TMUs | 160 | 192 |

| ROPs | 24 | 64 |

| RT Cores | 20 | 48 |

| Tensor Cores | 80 | 192 |

| Pixel Rate | 56.30 GPixel/s | 139.2 GPixel/s |

| Texture Rate | 375.4 GTexel/s | 417.6 GTexel/s |

| FP32 | 12.01 TFLOPS | 26.73 TFLOPS |

| FP16 | 12.01 TFLOPS (1:1) | 26.73 TFLOPS (1:1) |

| TDP | unknown | 130 W |

| Slot Width | IGP | Single-slot |

| Power Connectors | None | 1x 16-pin |

| Suggested PSU | null | 300 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | 1x HDMI | 4x DisplayPort 1.4a |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions (Length) | null | 245 mm, 9.6 inches |

| Dimensions (Height) | null | 112 mm, 4.4 inches |

| Release Date | 2026-05-31 | 2023-08-08 |

| Predecessor | null | Workstation Ampere |

| Successor | null | Blackwell PRO W |

| Percentile vs All GPUs | 50 | 95 |

| Average Benchmark Score | 0 | 135218 |

FAQ

Q: Which GPU has higher FP32 performance?

A: The RTX 4000 Ada Generation delivers 26.73 TFLOPS of FP32 performance, while the N1 20SM delivers 12.01 TFLOPS. The RTX 4000 Ada Generation is approximately 2.2x faster in FP32.

Q: How do the memory capacities compare?

A: The N1 20SM has 128 GB of LPDDR5X memory on a 256-bit bus, while the RTX 4000 Ada Generation has 20 GB of GDDR6 memory on a 160-bit bus. The N1 20SM has a higher capacity, but the RTX 4000 Ada Generation has higher bandwidth at 360.0 GB/s versus 273.2 GB/s.

Q: What benchmark scores does the RTX 4000 Ada Generation have?

A: The RTX 4000 Ada Generation scores 146,593 in Geekbench OpenCL and 123,842 in Geekbench Vulkan. Its average benchmark score is 135,218.

Q: Does the N1 20SM have any recorded benchmark scores?

A: No. The database shows no benchmark entries for the N1 20SM, and its average benchmark score is 0.

Q: What are the nearest rivals to the RTX 4000 Ada Generation?

A: The nearest rivals are the NVIDIA A10M (135,230, 0% delta), AMD Radeon PRO W6800 (135,396, -0.1% delta), AMD Radeon Pro W6800X Duo (135,774, -0.4% delta), and AMD Radeon PRO V620 (136,472, -0.9% delta).

Q: Which GPU supports more display outputs?

A: The RTX 4000 Ada Generation provides four DisplayPort 1.4a outputs, while the N1 20SM provides a single HDMI output.

Where Each One Wins

The RTX 4000 Ada Generation wins decisively in compute throughput. Its FP32 and FP16 scores of 26.73 TFLOPS double those of the N1 20SM. Pixel rate is 139.2 GPixel/s versus 56.30 GPixel/s, a 2.5x margin. Texture rate is 417.6 GTexel/s versus 375.4 GTexel/s, a smaller but still meaningful advantage. The RTX 4000 Ada Generation also has more shading units (6144 versus 2560), more TMUs (192 versus 160), more ROPs (64 versus 24), more RT cores (48 versus 20), and more tensor cores (192 versus 80).

The RTX 4000 Ada Generation wins in memory bandwidth, with 360.0 GB/s versus 273.2 GB/s for the N1 20SM. The N1 20SM has a wider memory bus at 256-bit versus 160-bit, but the GDDR6 memory type and higher effective clock speed on the RTX 4000 Ada Generation deliver greater overall bandwidth. The RTX 4000 Ada Generation also has a higher base clock at 1500 MHz versus 741 MHz, though the N1 20SM has a higher boost clock at 2346 MHz versus 2175 MHz.

The N1 20SM wins in memory capacity, offering 128 GB versus 20 GB. This makes it suited for workloads where holding large datasets in memory matters more than raw bandwidth or compute throughput. The N1 20SM also uses a newer PCIe interface at 5.0 x16 versus 4.0 x16, which could benefit data transfer in compatible systems. Its integrated design consumes no external power connectors, while the RTX 4000 Ada Generation requires a 16-pin connector and a 300 W suggested power supply.

The RTX 4000 Ada Generation wins in API support, with DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the N1 20SM lists no API support. The RTX 4000 Ada Generation also has a higher percentile ranking at 95 versus 50, and an average benchmark score of 135,218 versus 0. For users needing validated performance, the RTX 4000 Ada Generation is the clear choice. For users needing maximum memory capacity in an integrated form factor, the N1 20SM offers that specific advantage, but without benchmark verification.