NVIDIA N1 16SM vs NVIDIA RTX PRO 4500 Blackwell Server Comparison

Head-to-Head Benchmarks

The recorded database contains no benchmark scores for either the NVIDIA N1 16SM or the NVIDIA RTX PRO 4500 Blackwell Server. Both entries show an average benchmark score of zero, and the head-to-head comparison table is empty. Consequently, no direct performance deltas, percentile rankings, or win counts can be derived from the measurements. The percentile versus all GPUs is identical for both parts at 50, indicating a neutral position in the absence of scored workloads.

Without benchmark data, the only quantifiable performance indicators come from the specification sheets. The RTX PRO 4500 delivers 50.70 TFLOPS of FP32 compute, while the N1 16SM delivers 9.609 TFLOPS. That is a 5.3x difference in raw floating-point throughput. Texture rate shows a similar gap: 792.1 GTexel/s versus 300.3 GTexel/s, a 2.6x advantage for the server card. Pixel rate favors the RTX PRO 4500 as well, at 270.5 GPixel/s versus 56.30 GPixel/s, a 4.8x margin. Memory bandwidth is 800.3 GB/s for the RTX PRO 4500 versus 273.2 GB/s for the N1 16SM, a 2.9x difference.

The N1 16SM does hold one notable advantage in memory capacity. It carries 128 GB of LPDDR5X, while the RTX PRO 4500 has 32 GB of GDDR7. That is a 4x capacity advantage for the integrated part. Clock speeds also differ substantially, with the N1 16SM boosting to 2346 MHz and the RTX PRO 4500 boosting to 2415 MHz. The server card has a higher base clock at 1215 MHz versus 741 MHz for the N1 16SM.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The RTX PRO 4500 Blackwell Server delivers 50.70 TFLOPS, which is 5.3x higher than the N1 16SM's 9.609 TFLOPS.

Q: How do the memory configurations differ?

A: The N1 16SM uses 128 GB of LPDDR5X with a 256-bit bus and 273.2 GB/s bandwidth. The RTX PRO 4500 uses 32 GB of GDDR7 with a 256-bit bus and 800.3 GB/s bandwidth. The N1 16SM has 4x more capacity, while the RTX PRO 4500 has 2.9x more bandwidth.

Q: What are the physical form factor differences?

A: The N1 16SM is an integrated graphics processor (IGP) with no slot width, no power connectors, and a single HDMI output. The RTX PRO 4500 is a single-slot, 267 mm long, 111 mm tall, 40 mm wide card with a 16-pin power connector and no display outputs.

Q: Which GPU has more shading units and ray tracing cores?

A: The RTX PRO 4500 has 10,496 shading units and 82 RT cores. The N1 16SM has 2,048 shading units and 16 RT cores. The server card also has 328 tensor cores versus 64 for the N1 16SM.

Q: What API support does each GPU provide?

A: The N1 16SM reports N/A for DirectX, OpenGL, and Vulkan. The RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the release dates and production statuses?

A: The N1 16SM was released on 2026-05-31 and is Active in production. The RTX PRO 4500 was released on 2026-03-16 and is also Active. The RTX PRO 4500 lists Server Hopper as its predecessor and Server Rubin as its successor.

Architecture Differences

Both GPUs use the Blackwell 2.0 architecture and are fabricated on a 5 nm process at TSMC. The chip designs, however, diverge significantly. The N1 16SM uses the GB20B die with a 382 mm² area, while the RTX PRO 4500 uses the GB203 die with a 378 mm² area. The transistor counts differ sharply: the RTX PRO 4500 lists 45,600 million transistors, giving a density of 120.6M per mm², whereas the N1 16SM reports an unknown transistor count.

The generation labels separate the two as well. The N1 16SM belongs to the "Blackwell IGP (N1x)" generation, indicating an integrated graphics processor design. The RTX PRO 4500 belongs to the "Server Blackwell (Bxx)" generation, targeting server deployments. This distinction explains the physical differences: the N1 16SM has no slot width, no power connectors, and lists "IGP" as its form factor. The RTX PRO 4500 is a single-slot card measuring 267 mm by 111 mm by 40 mm, with a 16-pin power connector and a 450 W suggested PSU.

Memory architecture also differs fundamentally. The N1 16SM uses LPDDR5X at 1067 MHz (8.5 Gbps effective) across a 256-bit bus. The RTX PRO 4500 uses GDDR7 at 1563 MHz (25 Gbps effective) across the same 256-bit bus width. Both achieve different bandwidth outcomes from that bus width, with the GDDR7 implementation producing 800.3 GB/s versus 273.2 GB/s for LPDDR5X.

Shader and compute resources are heavily skewed toward the server part. The RTX PRO 4500 has 10,496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The N1 16SM has 2,048 shading units, 128 TMUs, 24 ROPs, 16 RT cores, and 64 tensor cores. These resource counts directly explain the FP32, texture, and pixel rate figures. The FP16 performance is listed as 1:1 for both, meaning FP16 throughput matches FP32 in each case.

Power draw is only specified for the RTX PRO 4500 at 165 W TDP. The N1 16SM's TDP is unknown, consistent with an integrated part that has no discrete power connector. The RTX PRO 4500 also carries a suggested PSU rating of 450 W, which the N1 16SM does not require.

Display output capabilities differ completely. The N1 16SM provides a single HDMI output. The RTX PRO 4500 has no display outputs, reflecting its server orientation. API support follows the same pattern: the N1 16SM lists N/A for DirectX, OpenGL, and Vulkan, while the RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The Verdict

The data indicates two entirely different product categories. The NVIDIA N1 16SM is an integrated graphics processor with 128 GB of LPDDR5X memory, a 256-bit bus, and no discrete power requirements. It targets systems where memory capacity is paramount and where the absence of a dedicated slot and power connector is acceptable. Its FP32 performance of 9.609 TFLOPS and 273.2 GB/s bandwidth are modest, but the 128 GB capacity is the standout feature.

The NVIDIA RTX PRO 4500 Blackwell Server is a discrete, single-slot server card with 32 GB of GDDR7 memory, 800.3 GB/s bandwidth, and 50.70 TFLOPS of FP32 compute. It has 5x the shading units, 2.6x the texture rate, and 4.8x the pixel rate of the N1 16SM. Its 82 RT cores and 328 tensor cores position it for compute-heavy server workloads. The 165 W TDP and 450 W suggested PSU indicate a conventional power profile for a single-slot accelerator.

Benchmark results are unavailable, so the verdict rests on specifications alone. The RTX PRO 4500 is the clear choice for raw compute throughput, memory bandwidth, and API compatibility. The N1 16SM is the only option when 128 GB of memory is required, given that the RTX PRO 4500 offers only 32 GB. The N1 16SM also has no display outputs on the server card, while the integrated part provides one HDMI port, which may matter for headless versus basic display needs.

The release dates show the RTX PRO 4500 came first on 2026-03-16, with the N1 16SM following on 2026-05-31. Both remain in active production. The RTX PRO 4500 has defined predecessors and successors in Server Hopper and Server Rubin, while the N1 16SM lists none. Users requiring server-grade compute with modern API support should select the RTX PRO 4500. Users needing maximum memory capacity in an integrated form factor should select the N1 16SM.

Specification Differences

| Specification | NVIDIA N1 16SM | NVIDIA RTX PRO 4500 Blackwell Server |

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

| Chip | GB20B | GB203 |

| Generation | Blackwell IGP (N1x) | Server Blackwell (Bxx) |

| Process Node | 5 nm | 5 nm |

| Foundry | TSMC | TSMC |

| Transistors | Unknown | 45,600 million |

| Die Size | 382 mm² | 378 mm² |

| Transistor Density | Not listed | 120.6M / mm² |

| Base Clock | 741 MHz | 1215 MHz |

| Boost Clock | 2346 MHz | 2415 MHz |

| Memory Clock | 1067 MHz (8.5 Gbps effective) | 1563 MHz (25 Gbps effective) |

| Memory Size | 128 GB | 32 GB |

| Memory Type | LPDDR5X | GDDR7 |

| Memory Bus Width | 256 bit | 256 bit |

| Memory Bandwidth | 273.2 GB/s | 800.3 GB/s |

| Shading Units | 2048 | 10496 |

| TMUs | 128 | 328 |

| ROPs | 24 | 112 |

| RT Cores | 16 | 82 |

| Tensor Cores | 64 | 328 |

| Pixel Rate | 56.30 GPixel/s | 270.5 GPixel/s |

| Texture Rate | 300.3 GTexel/s | 792.1 GTexel/s |

| FP32 | 9.609 TFLOPS | 50.70 TFLOPS |

| FP16 | 9.609 TFLOPS (1:1) | 50.70 TFLOPS (1:1) |

| TDP | Unknown | 165 W |

| Slot Width | IGP | Single-slot |

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

| Suggested PSU | Not listed | 450 W |

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

| Display Outputs | 1x HDMI | No outputs |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions (L x H x W) | Not listed | 267 mm x 111 mm x 40 mm |

| Release Date | 2026-05-31 | 2026-03-16 |

| Predecessor | Not listed | Server Hopper |

| Successor | Not listed | Server Rubin |

| Production Status | Active | Active |