NVIDIA N1 16SM vs NVIDIA RTX PRO 4500 Blackwell Comparison

The Verdict

The database comparison between the NVIDIA N1 16SM and the NVIDIA RTX PRO 4500 Blackwell shows two very different products aimed at different use cases. The N1 16SM is an integrated graphics processor (IGP) built for the Blackwell IGP (N1x) generation, while the RTX PRO 4500 is a dual-slot workstation card with a 200 W TDP and a 16-pin power connector.

The RTX PRO 4500 Blackwell is the clear performance leader. It sits at the 76th percentile among all GPUs in the database, with an average benchmark score of 31532. Its nearest rivals include the NVIDIA TITAN RTX at 31676 (0.5% ahead), the Intel Arc Pro A30M at 31894 (1.1% ahead), the NVIDIA GRID M60-1Q at 31220 (1% behind), and the NVIDIA Quadro M5000 at 31206 (1% behind). This places it in a competitive mid-to-high tier for workstation graphics.

The N1 16SM, by contrast, has no recorded benchmarks, an average benchmark score of zero, and sits at the 50th percentile. It has no nearest rivals listed in the database. The data indicates this IGP is not designed for high-end rendering or compute tasks. Its 2048 shading units, 128 texture mapping units, and 24 raster operation pipelines produce a pixel rate of 56.30 GPixel/s and a texture rate of 300.3 GTexel/s. The RTX PRO 4500, with 10496 shading units, 328 TMUs, and 112 ROPs, delivers 269.6 GPixel/s and 789.5 GTexel/s.

Who should pick which: users needing maximum compute throughput, high-bandwidth memory, and workstation display outputs should select the RTX PRO 4500 Blackwell. Users building compact or power-efficient systems that require an integrated solution with a large memory pool may consider the N1 16SM, but the data shows no performance benchmarks to support demanding workloads.

Architecture Differences

Both GPUs use the Blackwell 2.0 architecture and are fabricated on a 5 nm process at TSMC. The similarities end there.

The N1 16SM uses the GB20B chip with a die size of 382 mm². Its transistor count is listed as unknown in the database. The RTX PRO 4500 uses the GB203 chip with a die size of 378 mm² and 45,600 million transistors, giving it a transistor density of 120.6 million per mm². The N1 16SM has no density figure recorded.

Memory architecture differs substantially. The N1 16SM integrates 128 GB of LPDDR5X on a 256-bit bus, achieving 273.2 GB/s of bandwidth. Memory clocks run at 1067 MHz with 8.5 Gbps effective. The RTX PRO 4500 uses 32 GB of GDDR7 on the same 256-bit bus width, but reaches 896.0 GB/s of bandwidth. Its memory clock is 1750 MHz with 28 Gbps effective. The RTX PRO 4500 has over three times the memory bandwidth despite having one quarter the capacity.

Compute resources show a massive gap. The N1 16SM has 2048 shading units, 128 TMUs, 24 ROPs, 16 ray tracing cores, and 64 tensor cores. The RTX PRO 4500 has 10496 shading units, 328 TMUs, 112 ROPs, 82 ray tracing cores, and 328 tensor cores. That is roughly 5.1 times more shading units, 2.6 times more TMUs, 4.7 times more ROPs, 5.1 times more ray tracing cores, and 5.1 times more tensor cores.

Clock speeds also favor the RTX PRO 4500. Its base clock is 1635 MHz with a boost of 2407 MHz. The N1 16SM runs at 741 MHz base and 2346 MHz boost. The RTX PRO 4500 starts at more than double the base clock of the N1 16SM.

API support differs as well. The RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1 16SM lists N/A for DirectX, OpenGL, and Vulkan in the database. This makes the RTX PRO 4500 suitable for applications requiring modern graphics APIs, while the N1 16SM has no recorded API compatibility.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two GPUs. The wins counter shows 0 for both sides. However, the RTX PRO 4500 has individual benchmark scores that provide insight into its performance profile.

In 3DMark Steel Nomad DX12, the RTX PRO 4500 scores 7025. Its Geekbench Vulkan score is 221768. Passmark results show 204 for DirectX 10, 320 for DirectX 11, 119 for DirectX 12, and 397 for DirectX 9. The 2D graphics score is 1336, while the 3D graphics score is 33360. GPU compute scores 19255.

The N1 16SM has no benchmark entries in the database. Its average benchmark score is recorded as zero. This means no comparative performance data exists for the IGP.

The RTX PRO 4500's average benchmark score of 31532 places it within 0.5% of the NVIDIA TITAN RTX (31676) and 1.1% behind the Intel Arc Pro A30M (31894). It sits 1% ahead of both the NVIDIA GRID M60-1Q (31220) and the NVIDIA Quadro M5000 (31206). These deltas indicate the RTX PRO 4500 performs in a tight band around these rivals, with the Intel part being the closest threat and the M5000 and M60-1Q being the closest trailing competitors.

The 3DMark Steel Nomad score of 7025 reflects modern DX12 rendering performance. The Passmark G3D score of 33360 indicates strong general 3D workload capability. The GPU compute score of 19255 shows substantial compute throughput for non-graphics tasks.

FAQ

Q: Which GPU has higher memory bandwidth?

A: The RTX PRO 4500 Blackwell has 896.0 GB/s of bandwidth, compared to 273.2 GB/s for the N1 16SM. This comes from GDDR7 memory running at 1750 MHz with 28 Gbps effective on a 256-bit bus.

Q: What is the memory capacity difference?

A: The N1 16SM has 128 GB of LPDDR5X, while the RTX PRO 4500 has 32 GB of GDDR7. The N1 16SM has four times the capacity but far lower bandwidth.

Q: Does the N1 16SM support DirectX 12 Ultimate?

A: No. The database records N/A for DirectX, OpenGL, and Vulkan support on the N1 16SM. 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 the NVIDIA TITAN RTX?

A: The RTX PRO 4500 has an average benchmark score of 31532, which is 0.5% behind the TITAN RTX's 31676. This places the two cards at essentially parity in the database's aggregate scoring.

Q: What are the power requirements for the RTX PRO 4500?

A: The RTX PRO 4500 has a 200 W TDP, uses a single 16-pin power connector, and the database suggests a 550 W power supply. The N1 16SM is an IGP with no power connector and an unknown TDP.

Q: Which GPU has more ray tracing cores?

A: The RTX PRO 4500 has 82 ray tracing cores, while the N1 16SM has 16. This is a 5.1 times difference in ray tracing hardware.

Where Each One Wins

The RTX PRO 4500 Blackwell wins in every measurable performance category in the database. Its FP32 compute is 50.53 TFLOPS versus 9.609 TFLOPS for the N1 16SM. FP16 performance matches at 50.53 TFLOPS and 9.609 TFLOPS respectively, both at 1:1 ratios. The pixel rate of 269.6 GPixel/s versus 56.30 GPixel/s and texture rate of 789.5 GTexel/s versus 300.3 GTexel/s confirm the advantage across rasterization and texturing.

The RTX PRO 4500 also wins on memory bandwidth, with 896.0 GB/s versus 273.2 GB/s. This makes it suitable for bandwidth-intensive workloads like high-resolution rendering, large dataset processing, and AI inference. The 4x DisplayPort 2.1b outputs support multi-display workstation setups. The N1 16SM offers only a single HDMI output.

The N1 16SM wins on memory capacity, offering 128 GB versus 32 GB. This could benefit workloads that require large working sets that fit entirely in VRAM, such as massive scene files or large language model weights. However, the lower bandwidth may bottleneck such workloads. The N1 16SM also wins on physical footprint, being an IGP with no slot width, no power connector, and no length, height, or width dimensions recorded. The RTX PRO 4500 is a dual-slot card measuring 267 mm long, 111 mm tall, and 40 mm wide.

The N1 16SM has a later release date of 2026-05-31 compared to the RTX PRO 4500's 2025-03-17. Both are listed as Active in production status. The RTX PRO 4500 has a predecessor in Workstation Ada, while the N1 16SM has no predecessor listed.

Specification Differences

The two GPUs differ across nearly every recorded specification.

Chip and Die: The N1 16SM uses GB20B with a 382 mm² die and unknown transistor count. The RTX PRO 4500 uses GB203 with a 378 mm² die and 45,600 million transistors.

Clocks: The N1 16SM has a base clock of 741 MHz and boost of 2346 MHz. The RTX PRO 4500 has a base of 1635 MHz and boost of 2407 MHz. Memory clocks are 1067 MHz (8.5 Gbps effective) for the N1 16SM and 1750 MHz (28 Gbps effective) for the RTX PRO 4500.

Memory: The N1 16SM has 128 GB LPDDR5X with 273.2 GB/s bandwidth. The RTX PRO 4500 has 32 GB GDDR7 with 896.0 GB/s bandwidth. Both use a 256-bit bus.

Compute Units: The N1 16SM has 2048 shading units, 128 TMUs, 24 ROPs, 16 RT cores, and 64 tensor cores. The RTX PRO 4500 has 10496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores.

Performance Rates: The N1 16SM delivers 56.30 GPixel/s, 300.3 GTexel/s, 9.609 TFLOPS FP32, and 9.609 TFLOPS FP16. The RTX PRO 4500 delivers 269.6 GPixel/s, 789.5 GTexel/s, 50.53 TFLOPS FP32, and 50.53 TFLOPS FP16.

Power and Physical: The N1 16SM has unknown TDP, IGP slot width, and no power connectors. The RTX PRO 4500 has 200 W TDP, dual-slot width, one 16-pin connector, and a suggested 550 W PSU.

Display Outputs: The N1 16SM has 1x HDMI. The RTX PRO 4500 has 4x DisplayPort 2.1b.

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

Dimensions: The N1 16SM has no recorded dimensions. The RTX PRO 4500 measures 267 mm by 111 mm by 40 mm.

Release Dates: The N1 16SM released 2026-05-31. The RTX PRO 4500 released 2025-03-17.

Benchmark Status: The N1 16SM has no benchmarks and a 50th percentile rank. The RTX PRO 4500 has nine benchmark entries, a 76th percentile rank, and an average score of 31532.