NVIDIA N1X 40SM vs NVIDIA RTX PRO 4500 Blackwell Comparison

Where Each One Wins

The recorded data presents an unusual comparison: the NVIDIA N1X 40SM has no benchmark entries in the database, while the NVIDIA RTX PRO 4500 Blackwell has nine recorded results. The N1X 40SM therefore cannot be credited with any benchmark wins, as no measurements exist for it. The RTX PRO 4500 Blackwell, by contrast, delivers scores across DirectX 9 through 12, Vulkan, compute, and 2D tests.

The RTX PRO 4500 Blackwell shows its strongest relative performance in the PassMark G3D test with a score of 33,360, and in Geekbench Vulkan with 221,768. The PassMark GPU Compute score of 19,255 indicates substantial compute throughput. The 3DMark Steel Nomad DX12 score of 7,025 represents the modern gaming workload result. For legacy DirectX tests, the card scores 397 in DX9, 320 in DX11, 204 in DX10, and 119 in DX12 within PassMark's older suite. The PassMark G2D score of 1,336 measures 2D graphics operations.

The N1X 40SM, as an integrated graphics processor (IGP) with no benchmarks, occupies a different category entirely. Its percentile rank of 50 among all GPUs is the only positional data available, while the RTX PRO 4500 sits at the 76th percentile. The average benchmark score for the RTX PRO 4500 is 31,532, computed from its nine recorded tests. The N1X 40SM has an average score of zero due to the absence of recorded measurements.

This split means the RTX PRO 4500 Blackwell wins every measurable category by default. The N1X 40SM's role appears to be a low-power integrated solution, given its IGP slot width, no power connectors, and no TDP figure recorded. The data cannot support any use-case win for the N1X 40SM beyond its existence as an active production part with a 50th percentile standing.

Architecture Differences

Both processors share the Blackwell 2.0 architecture and are fabricated on the same 5 nm TSMC process node. The similarities end there in several key areas. The N1X 40SM uses the GB20B chip with a die size of 382 mm², while the RTX PRO 4500 uses the GB203 chip with a die size of 378 mm². The RTX PRO 4500 has a recorded transistor count of 45,600 million and a transistor density of 120.6 million per mm². The N1X 40SM's transistor count and density are listed as unknown.

The N1X 40SM integrates 5,120 shading units, 320 texture mapping units, 40 ROPs, 40 ray tracing cores, and 160 tensor cores. The RTX PRO 4500 more than doubles the shading units to 10,496, with 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. These differences directly influence the pixel rate: the N1X 40SM delivers 93.84 GPixel/s versus 269.6 GPixel/s for the RTX PRO 4500. Texture rate is closer, with 750.7 GTexel/s for the N1X and 789.5 GTexel/s for the RTX PRO.

Memory architecture diverges substantially. The N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth, while the RTX PRO 4500 uses 32 GB of GDDR7 on the same 256-bit bus but with 896.0 GB/s bandwidth. The memory clock for the N1X is 1067 MHz (8.5 Gbps effective), while the RTX PRO runs at 1750 MHz (28 Gbps effective). The RTX PRO's bandwidth advantage is roughly 3.3 times the N1X's, despite having one quarter the capacity.

Clock speeds also differ. The N1X 40SM has a base clock of 741 MHz and a boost of 2346 MHz. The RTX PRO 4500 starts at 1635 MHz base and boosts to 2407 MHz. The FP32 throughput reflects the shading unit and clock differences: 24.02 TFLOPS for the N1X versus 50.53 TFLOPS for the RTX PRO, with both having 1:1 FP16 ratios at the same figures.

Physical and interface characteristics separate them further. The N1X 40SM is an IGP with no slot width beyond that designation, no power connectors, and a single HDMI output. The RTX PRO 4500 is a dual-slot card measuring 267 mm by 111 mm by 40 mm, with one 16-pin power connector, a 200 W TDP, a suggested 550 W PSU, and four DisplayPort 2.1b outputs. Both use PCIe 5.0 x16.

API support differs completely. The N1X 40SM lists DirectX, OpenGL, and Vulkan as N/A. The RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This means the N1X cannot run standard graphics APIs according to the database, while the RTX PRO supports the full modern stack.

Head-to-Head Benchmarks

No head-to-head benchmark entries exist in the database for this pair. The comparison therefore relies on the RTX PRO 4500's standalone results and the N1X 40SM's absence of results. The RTX PRO 4500's nearest rivals provide context for its standing. The NVIDIA TITAN RTX scores 31,676, which is 0.5% higher than the RTX PRO 4500's 31,532 average, meaning the RTX PRO trails by half a percent. The Intel Arc Pro A30M scores 31,894, 1.1% higher. The NVIDIA GRID M60-1Q scores 31,220, 1% lower, and the NVIDIA Quadro M5000 scores 31,206, also 1% lower.

The RTX PRO 4500's PassMark G3D score of 33,360 stands well above its average, indicating the 3D graphics workload is its strongest category. The Geekbench Vulkan score of 221,768 is a high absolute number, though no rival Vulkan scores are recorded for direct comparison. The PassMark GPU Compute score of 19,255 is less than the G3D score, suggesting compute performance trails graphics performance in this specific test.

The 3DMark Steel Nomad DX12 score of 7,025 represents a modern gaming workload. The PassMark DX12 score of 119 appears low relative to the DX11 score of 320, but these are separate test suites with different methodologies. The DX9 score of 397 is the highest among the PassMark DirectX tests, which reflects how legacy workloads can behave differently from modern ones.

The N1X 40SM has no scores to compare against any of these figures. Its percentile rank of 50 places it at the median of all GPUs in the database, but without benchmark scores, this rank cannot be verified against the RTX PRO 4500's 76th percentile. The RTX PRO 4500's nearest rivals all cluster within 1.1% of its average score, indicating tight competition at this performance tier.

FAQ

Q: Why does the NVIDIA N1X 40SM have no benchmark scores?

A: The database contains no benchmark entries for the N1X 40SM. Its average benchmark score is recorded as zero, and its benchmark list is empty. The RTX PRO 4500 Blackwell, by contrast, has nine recorded scores across multiple test suites.

Q: How much faster is the RTX PRO 4500 in memory bandwidth?

A: The RTX PRO 4500 delivers 896.0 GB/s bandwidth versus 273.2 GB/s for the N1X 40SM, approximately 3.3 times higher. The RTX PRO uses GDDR7 at 28 Gbps effective, while the N1X uses LPDDR5X at 8.5 Gbps effective.

Q: What is the FP32 performance difference?

A: The RTX PRO 4500 achieves 50.53 TFLOPS FP32, while the N1X 40SM achieves 24.02 TFLOPS. The RTX PRO delivers about 2.1 times the FP32 throughput, consistent with its higher shading unit count of 10,496 versus 5,120.

Q: Does the N1X 40SM support DirectX, OpenGL, or Vulkan?

A: The database records all three APIs as N/A for the N1X 40SM. The RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How does the RTX PRO 4500 compare to its nearest rivals?

A: The RTX PRO 4500's average score of 31,532 is 0.5% below the NVIDIA TITAN RTX (31,676) and 1.1% below the Intel Arc Pro A30M (31,894). It is 1% above both the NVIDIA GRID M60-1Q (31,220) and NVIDIA Quadro M5000 (31,206).

Q: What is the physical size difference between the two?

A: The N1X 40SM is an IGP with no recorded dimensions or power connectors. The RTX PRO 4500 is a dual-slot card measuring 267 mm by 111 mm by 40 mm, with one 16-pin power connector and a 200 W TDP.

The Verdict

The data supports only one conclusion: the RTX PRO 4500 Blackwell is the measurable performer, while the N1X 40SM exists without any recorded performance data. The RTX PRO 4500 delivers over twice the FP32 throughput (50.53 versus 24.02 TFLOPS), over three times the memory bandwidth (896.0 versus 273.2 GB/s), and full API support where the N1X has none. Its 76th percentile rank versus the N1X's 50th percentile further separates them.

The N1X 40SM's role is defined by its integrated nature: IGP slot width, no power connectors, a single HDMI output, and LPDDR5X memory. It targets a different segment entirely, one where 128 GB of memory capacity matters more than bandwidth or shading throughput. The RTX PRO 4500, with 32 GB of GDDR7, 82 RT cores, and 328 tensor cores, is built for workstation graphics and compute workloads.

For users requiring DirectX, OpenGL, or Vulkan support, the N1X 40SM is not viable per the database. The RTX PRO 4500's 12 Ultimate API support and four DisplayPort 2.1b outputs make it the only option for standard graphics applications. The RTX PRO's nearest rivals all sit within 1.1% of its average score, indicating it competes at a specific performance tier, but it is the only one of this pair with any benchmark evidence.

The N1X 40SM's 50th percentile rank suggests it sits at the median of all GPUs, but with no scores to substantiate that position. The RTX PRO 4500's 76th percentile is backed by nine tests. Any selection between these two must default to the RTX PRO 4500 based on recorded data alone.

Specification Differences

| Field | NVIDIA N1X 40SM | NVIDIA RTX PRO 4500 Blackwell |

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

| Chip | GB20B | GB203 |

| Process Node | 5 nm | 5 nm |

| Die Size | 382 mm² | 378 mm² |

| Transistors | Unknown | 45,600 million |

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

| Base Clock | 741 MHz | 1635 MHz |

| Boost Clock | 2346 MHz | 2407 MHz |

| Memory Size | 128 GB | 32 GB |

| Memory Type | LPDDR5X | GDDR7 |

| Memory Bus | 256 bit | 256 bit |

| Memory Bandwidth | 273.2 GB/s | 896.0 GB/s |

| Memory Clock | 1067 MHz, 8.5 Gbps effective | 1750 MHz, 28 Gbps effective |

| Shading Units | 5120 | 10496 |

| TMUs | 320 | 328 |

| ROPs | 40 | 112 |

| RT Cores | 40 | 82 |

| Tensor Cores | 160 | 328 |

| Pixel Rate | 93.84 GPixel/s | 269.6 GPixel/s |

| Texture Rate | 750.7 GTexel/s | 789.5 GTexel/s |

| FP32 | 24.02 TFLOPS | 50.53 TFLOPS |

| FP16 | 24.02 TFLOPS (1:1) | 50.53 TFLOPS (1:1) |

| TDP | Unknown | 200 W |

| Slot Width | IGP | Dual-slot |

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

| Suggested PSU | Not recorded | 550 W |

| 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 |

| Dimensions | Not recorded | 267 mm x 111 mm x 40 mm |

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

| Production Status | Active | Active |

| Predecessor | Not recorded | Workstation Ada |

| Percentile | 50 | 76 |

| Average Benchmark Score | 0 | 31,532 |