NVIDIA N1 20SM vs NVIDIA RTX PRO 5000 Blackwell Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark scores between the NVIDIA N1 20SM and the NVIDIA RTX PRO 5000 Blackwell. The N1 20SM has no benchmark entries in the database, while the RTX PRO 5000 Blackwell has three recorded scores. This absence of comparable measurements means the comparison relies on architectural specifications and the RTX PRO 5000 Blackwell’s standalone performance relative to other GPUs.

The RTX PRO 5000 Blackwell delivers an average benchmark score of 182,109 across its tested workloads. In 3DMark Steel Nomad DX12, it scores 9,579.5 points. For compute-oriented tasks, Geekbench OpenCL returns 254,116, and Geekbench Vulkan reaches 282,631. These results place the card at the 98th percentile among all GPUs in the database, a strong indicator of top-tier performance.

The N1 20SM, by contrast, holds a 50th percentile ranking, with no recorded benchmark scores and an average score of zero. The database therefore provides no measured evidence of its performance in comparable workloads. The nearest rivals for the RTX PRO 5000 Blackwell offer context for its standing. The NVIDIA A100 SXM4 80 GB records an average score of 183,725, which is 0.9% higher. The NVIDIA RTX 5000 Ada Generation scores 184,664, 1.4% higher. The NVIDIA GeForce RTX 4090 D trails with 178,050, 2.3% lower. The NVIDIA A100 SXM4 40 GB leads the group at 187,147, 2.7% higher. These deltas indicate the RTX PRO 5000 Blackwell sits within a tight performance band around these established accelerators.

Architecture Differences

Both GPUs use the Blackwell 2.0 architecture and are fabricated by TSMC on a 5 nm process. The similarities end there. The N1 20SM uses the GB20B chip, while the RTX PRO 5000 Blackwell uses the GB202 chip. The GB202 die measures 750 mm² and contains 92,200 million transistors, yielding a transistor density of 122.9M per mm². The N1 20SM’s die is 382 mm², and its transistor count is listed as unknown in the database.

The RTX PRO 5000 Blackwell carries 14,080 shading units, 440 texture mapping units, and 160 raster output units. It also includes 110 ray tracing cores and 440 tensor cores. The N1 20SM has 2,560 shading units, 160 TMUs, and 24 ROPs, with 20 ray tracing cores and 80 tensor cores. These figures show a substantial gap in raw compute resources, with the RTX PRO 5000 Blackwell offering roughly 5.5 times the shading units and 2.75 times the texture units.

Memory configurations differ sharply. The N1 20SM uses 128 GB of LPDDR5X on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The RTX PRO 5000 Blackwell uses 48 GB of GDDR7 on a 384-bit bus, delivering 1.34 TB/s. The N1 20SM has more capacity, but the RTX PRO 5000 Blackwell has nearly five times the bandwidth. Clock speeds also diverge. The N1 20SM runs at a base of 741 MHz and boosts to 2346 MHz. The RTX PRO 5000 Blackwell starts at 1740 MHz and boosts to 2377 MHz. Memory clocks show 1067 MHz (8.5 Gbps effective) for the N1 20SM versus 1750 MHz (28 Gbps effective) for the RTX PRO 5000 Blackwell.

Pixel and texture rates follow the hardware counts. The N1 20SM achieves 56.30 GPixel/s and 375.4 GTexel/s. The RTX PRO 5000 Blackwell reaches 380.3 GPixel/s and 1,045.9 GTexel/s. Floating-point performance shows a similar pattern: the N1 20SM delivers 12.01 TFLOPS for both FP32 and FP16 (1:1 ratio), while the RTX PRO 5000 Blackwell delivers 66.94 TFLOPS for both, also at a 1:1 ratio.

The RTX PRO 5000 Blackwell includes full API support with DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1 20SM lists all APIs as N/A, indicating it is not designed for standard graphics API workloads. Power and physical characteristics also differ. The RTX PRO 5000 Blackwell has a 300 W TDP, a dual-slot design, a 16-pin power connector, and a suggested PSU of 700 W. It measures 267 mm in length, 111 mm in height, and 40 mm in width. The N1 20SM is an integrated graphics processor with no power connector, no TDP listed, and no dimensions recorded.

Where Each One Wins

The RTX PRO 5000 Blackwell wins decisively in every measured performance category. Its FP32 throughput of 66.94 TFLOPS is roughly 5.6 times the N1 20SM’s 12.01 TFLOPS. Texture rate shows a 2.8 times advantage, and pixel rate shows a 6.8 times advantage. Memory bandwidth favors the RTX PRO 5000 Blackwell at 1.34 TB/s versus 273.2 GB/s, a 4.9 times difference. The RTX PRO 5000 Blackwell also has more ray tracing cores (110 versus 20) and more tensor cores (440 versus 80), which positions it for ray-traced rendering and AI-accelerated workloads.

The N1 20SM wins on memory capacity. Its 128 GB of LPDDR5X exceeds the RTX PRO 5000 Blackwell’s 48 GB by a wide margin. This capacity advantage could benefit workloads that require large in-memory datasets, such as certain data processing or model inference scenarios, though the lower bandwidth limits sustained throughput. The N1 20SM also has a smaller die size at 382 mm² versus 750 mm², which may imply lower manufacturing cost per wafer, though the database does not provide cost data.

The RTX PRO 5000 Blackwell’s benchmark results place it at the 98th percentile, while the N1 20SM sits at the 50th percentile with no recorded scores. The nearest rival data reinforces the RTX PRO 5000 Blackwell’s competitive position. It sits within 2.7% of the A100 SXM4 40 GB, which leads the comparison group. The RTX PRO 5000 Blackwell outperforms the RTX 4090 D by 2.3%, showing it holds its own against a consumer flagship in aggregate scoring.

FAQ

Q: Which GPU has more shading units?

A: The RTX PRO 5000 Blackwell has 14,080 shading units, while the N1 20SM has 2,560.

Q: What is the memory bandwidth difference?

A: The RTX PRO 5000 Blackwell delivers 1.34 TB/s, which is approximately 4.9 times the N1 20SM’s 273.2 GB/s.

Q: Does the N1 20SM support DirectX?

A: No, the database lists DirectX as N/A for the N1 20SM. The RTX PRO 5000 Blackwell supports DirectX 12 Ultimate (12_2).

Q: How does the RTX PRO 5000 Blackwell compare to the NVIDIA A100 SXM4 80 GB?

A: The A100 SXM4 80 GB has an average score of 183,725, which is 0.9% higher than the RTX PRO 5000 Blackwell’s 182,109.

Q: Which GPU has a higher boost clock?

A: The RTX PRO 5000 Blackwell boosts to 2377 MHz, slightly higher than the N1 20SM’s 2346 MHz.

Q: What is the memory type for each GPU?

A: The N1 20SM uses LPDDR5X, while the RTX PRO 5000 Blackwell uses GDDR7.

The Verdict

The data clearly favors the RTX PRO 5000 Blackwell for any performance-sensitive workload. Its 66.94 TFLOPS FP32 throughput, 1.34 TB/s bandwidth, and 98th percentile ranking place it in a different class from the N1 20SM. The RTX PRO 5000 Blackwell also provides full API support, a 300 W TDP with a 16-pin connector, and a dual-slot form factor, making it a conventional discrete GPU for workstation use.

The N1 20SM is an integrated GPU with no benchmark scores, no API support, and no TDP listed. Its 128 GB memory capacity is the sole advantage, and that comes with a 273.2 GB/s bandwidth ceiling that limits practical throughput. The 50th percentile ranking and zero average benchmark score indicate the database has no evidence of competitive performance.

Users requiring maximum compute, ray tracing, tensor operations, or memory bandwidth should select the RTX PRO 5000 Blackwell. Users who need large memory capacity in an integrated form factor might consider the N1 20SM, but the absence of measured performance data makes any recommendation speculative. The RTX PRO 5000 Blackwell’s nearest rival comparisons show it performs within a few percent of top-tier accelerators like the A100 SXM4 series, confirming its position as a high-performance option.

Specification Differences

| Specification | NVIDIA N1 20SM | NVIDIA RTX PRO 5000 Blackwell |

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

| Chip | GB20B | GB202 |

| Process Node | 5 nm | 5 nm |

| Die Size | 382 mm² | 750 mm² |

| Transistors | Unknown | 92,200 million |

| Base Clock | 741 MHz | 1740 MHz |

| Boost Clock | 2346 MHz | 2377 MHz |

| Memory Size | 128 GB | 48 GB |

| Memory Type | LPDDR5X | GDDR7 |

| Memory Bus Width | 256 bit | 384 bit |

| Memory Bandwidth | 273.2 GB/s | 1.34 TB/s |

| Shading Units | 2,560 | 14,080 |

| TMUs | 160 | 440 |

| ROPs | 24 | 160 |

| Ray Tracing Cores | 20 | 110 |

| Tensor Cores | 80 | 440 |

| Pixel Rate | 56.30 GPixel/s | 380.3 GPixel/s |

| Texture Rate | 375.4 GTexel/s | 1,045.9 GTexel/s |

| FP32 | 12.01 TFLOPS | 66.94 TFLOPS |

| FP16 | 12.01 TFLOPS (1:1) | 66.94 TFLOPS (1:1) |

| TDP | Unknown | 300 W |

| Slot Width | IGP | Dual-slot |

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

| Suggested PSU | None | 700 W |

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

| Display Outputs | 1x HDMI | 4x DisplayPort 2.1b |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Production Status | Active | Active |

| Release Date | 2026-05-31 | 2025-03-17 |

| Launch MSRP | None | 5,099 USD |

| Percentile vs All GPUs | 50 | 98 |

| Average Benchmark Score | 0 | 182,109 |