NVIDIA N1 16SM vs NVIDIA RTX 4500 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between these two NVIDIA workstation parts. The NVIDIA RTX 4500 Ada Generation has recorded benchmark scores in the database, while the NVIDIA N1 16SM has no benchmark entries. This absence of recorded scores for the N1 16SM means a direct numerical comparison cannot be established through measured application tests. However, the available data does permit an analysis based on the architectural capabilities of each chip.

The RTX 4500 Ada Generation posts a Geekbench OpenCL score of 160,786 and a Geekbench Vulkan score of 171,401. Its average benchmark score across all recorded tests stands at 166,094. The N1 16SM, by contrast, has an average benchmark score of zero, indicating no completed or recorded workload results. The percentile ranking reinforces this divide: the RTX 4500 Ada sits in the 97th percentile of all GPUs in the database, while the N1 16SM ranks in the 50th percentile, which reflects its status as a part with no measured performance data rather than a mid-pack finish.

The RTX 4500 Ada Generation delivers 39.63 TFLOPS of FP32 compute and an identical 39.63 TFLOPS of FP16 compute, with a 1:1 ratio for both precision types. The N1 16SM provides 9.609 TFLOPS of FP32 and 9.609 TFLOPS of FP16, also at a 1:1 ratio. This represents a 4.1x raw compute advantage for the RTX 4500 Ada in both precision formats. Texture fill rates show a similar trend: the RTX 4500 Ada reaches 619.2 GTexel/s against the N1 16SM's 300.3 GTexel/s, a 2.1x difference. Pixel throughput favors the RTX 4500 Ada at 206.4 GPixel/s versus 56.30 GPixel/s for the N1 16SM, a 3.7x margin.

Memory bandwidth also diverges sharply. The RTX 4500 Ada uses 24 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s of bandwidth. The N1 16SM uses 128 GB of LPDDR5X on a 256-bit bus, delivering 273.2 GB/s. Despite having a wider bus and five times the memory capacity, the N1 16SM's bandwidth trails by 36.7% due to the slower memory type. The RTX 4500 Ada's memory clock runs at 2250 MHz (18 Gbps effective), while the N1 16SM's memory runs at 1067 MHz (8.5 Gbps effective).

The nearest rivals for the RTX 4500 Ada provide context for its standing. The NVIDIA RTX A5500 scores 165,217, which is 0.5% lower than the RTX 4500 Ada. The AMD Radeon PRO W7800 scores 164,894, a 0.7% deficit. The AMD Radeon Pro W6900X scores 168,574, which is 1.5% higher than the RTX 4500 Ada. The NVIDIA A100 PCIe 40 GB scores 162,504, a 2.2% deficit. These small delta percentages indicate the RTX 4500 Ada sits within a tight cluster of high-end workstation GPUs, slightly behind the W6900X but ahead of the other three rivals.

Where Each One Wins

The RTX 4500 Ada Generation wins in every measured or specified performance category that can be compared. Its 39.63 TFLOPS FP32 output is over four times the N1 16SM's 9.609 TFLOPS, making it the clear choice for compute-heavy workloads such as simulation, rendering, and data processing. The 240 tensor cores on the RTX 4500 Ada versus 64 on the N1 16SM indicate a substantial advantage for AI inference and training tasks, though the N1 16SM's tensor core count is still non-trivial for an integrated part. The 60 RT cores on the RTX 4500 Ada versus 16 on the N1 16SM give the workstation card a strong lead in ray-traced workflows.

The N1 16SM does hold advantages in specific system-level attributes. Its 128 GB of LPDDR5X memory dwarfs the RTX 4500 Ada's 24 GB of GDDR6, making the N1 16SM better suited for workloads that require massive memory pools, such as large dataset loading or multi-model AI inference where capacity matters more than raw bandwidth. The N1 16SM also uses a PCIe 5.0 x16 interface, which doubles the bandwidth ceiling of the RTX 4500 Ada's PCIe 4.0 x16 connection. This could benefit scenarios where data must stream from system memory or NVMe storage. The N1 16SM's integrated design with no power connectors and an IGP slot width means it fits into systems without discrete graphics power delivery, whereas the RTX 4500 Ada requires a dual-slot footprint and a 550 W suggested PSU.

The RTX 4500 Ada wins decisively on software ecosystem support. It lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 APIs, while the N1 16SM lists N/A for all three. The RTX 4500 Ada also provides four DisplayPort 1.4a outputs versus a single HDMI on the N1 16SM, which matters for multi-display professional setups. The RTX 4500 Ada's 7680 shading units, 240 TMUs, and 80 ROPs far exceed the N1 16SM's 2048 shading units, 128 TMUs, and 24 ROPs, providing a clear rasterization advantage.

Architecture Differences

The two parts belong to different NVIDIA architectures and design philosophies. The N1 16SM uses the GB20B chip based on Blackwell 2.0 architecture, specifically the Blackwell IGP (N1x) generation. The RTX 4500 Ada Generation uses the AD103 chip based on Ada Lovelace architecture, classified as a Workstation Ada part. Both are fabricated on a 5 nm process at TSMC, so the process node does not account for the performance gap.

The die sizes are similar: the N1 16SM measures 382 mm², while the RTX 4500 Ada measures 379 mm². The RTX 4500 Ada's transistor count is listed as 45,900 million with a density of 121.1 million transistors per mm². The N1 16SM's transistor count is marked as unknown, so a direct comparison of transistor budgets is not possible from the recorded data. The near-identical die sizes suggest the N1 16SM likely integrates a large memory controller and I/O fabric to support its 128 GB LPDDR5X pool, rather than dedicating silicon to compute units.

Clock speeds show a different design intent. The N1 16SM runs at a 741 MHz base clock and a 2346 MHz boost clock. The RTX 4500 Ada runs at a 2070 MHz base clock and a 2580 MHz boost clock. The N1 16SM's low base clock indicates a power-conservative integrated design, while its high boost clock relative to base suggests it can scale up substantially under load. The RTX 4500 Ada's consistently high clocks reflect a discrete GPU tuned for sustained professional workloads.

The memory subsystems differ fundamentally. The N1 16SM uses LPDDR5X, which is typically soldered onto the motherboard or package, explaining its IGP form factor and lack of power connectors. The RTX 4500 Ada uses GDDR6 on a 192-bit bus, a conventional discrete GPU memory configuration. The N1 16SM's 256-bit bus width with 128 GB capacity suggests a unified memory architecture where the GPU and system share the same memory pool, common in integrated designs. The RTX 4500 Ada's dedicated 24 GB GDDR6 frame buffer is separate from system memory.

Feature support separates the parts further. The RTX 4500 Ada supports the full DirectX 12 Ultimate feature set, OpenGL 4.6, and Vulkan 1.4, while the N1 16SM reports no API support in the database. The RTX 4500 Ada also has 60 RT cores and 240 tensor cores, versus 16 RT cores and 64 tensor cores on the N1 16SM. The production status for both parts is listed as Active, and both are manufactured by NVIDIA. The RTX 4500 Ada's predecessor is Workstation Ampere and its successor is Blackwell PRO W, while the N1 16SM has no recorded predecessor or successor.

FAQ

Q: Which GPU has the higher raw compute performance?

A: The RTX 4500 Ada Generation delivers 39.63 TFLOPS of FP32 and FP16 compute, while the N1 16SM delivers 9.609 TFLOPS in both precisions. The RTX 4500 Ada has a 4.1x advantage in raw floating-point throughput.

Q: How do their memory systems compare?

A: The N1 16SM uses 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The RTX 4500 Ada uses 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The RTX 4500 Ada has 58.2% more bandwidth, while the N1 16SM has 5.3x more capacity.

Q: What is the RTX 4500 Ada's standing among its nearest competitors?

A: The RTX 4500 Ada has an average benchmark score of 166,094. It sits 0.5% above the RTX A5500 (165,217), 0.7% above the Radeon PRO W7800 (164,894), 1.5% below the Radeon Pro W6900X (168,574), and 2.2% above the A100 PCIe 40 GB (162,504).

Q: Does the N1 16SM support modern graphics APIs?

A: The database lists DirectX, OpenGL, and Vulkan support as N/A for the N1 16SM. The RTX 4500 Ada supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the physical and power requirements of each card?

A: The N1 16SM is an IGP with no power connectors and a PCIe 5.0 x16 interface. The RTX 4500 Ada is a dual-slot card measuring 245 mm in length and 112 mm in height, with a 210 W TDP and a suggested 550 W PSU, using a PCIe 4.0 x16 interface.

Q: How do display outputs differ?

A: The N1 16SM provides a single HDMI output. The RTX 4500 Ada provides four DisplayPort 1.4a outputs.

The Verdict

The data supports a clear division of roles. The RTX 4500 Ada Generation is the higher-performance workstation GPU in nearly every measurable category: compute throughput, texture rate, pixel rate, memory bandwidth, API support, and display connectivity. Its 97th percentile ranking and average benchmark score of 166,094 place it among the top workstation accelerators, slightly behind the Radeon Pro W6900X but ahead of the RTX A5500, Radeon PRO W7800, and A100 PCIe 40 GB. For users running OpenCL or Vulkan workloads, or tasks requiring DirectX 12 Ultimate, OpenGL 4.6, or Vulkan 1.4, the RTX 4500 Ada is the only viable option between these two parts.

The N1 16SM serves a different purpose. Its 128 GB LPDDR5X memory pool and 256-bit bus offer exceptional capacity for a single GPU, and its PCIe 5.0 x16 interface provides high-bandwidth connectivity to the host system. The 16 RT cores and 64 tensor cores provide some acceleration capability for ray tracing and AI workloads, but at 9.609 TFLOPS of FP32 compute, it delivers roughly a quarter of the RTX 4500 Ada's compute density. The N1 16SM's lack of recorded benchmark scores and its N/A API support listings mean the database cannot confirm any application-level performance for this part.

The choice depends on workload requirements. The RTX 4500 Ada Generation suits professionals who need a discrete, dual-slot card with high compute throughput, 432.0 GB/s of memory bandwidth, and full graphics API support. The N1 16SM suits systems where a 128 GB unified memory pool and an integrated form factor with no power connectors are more important than peak compute or software compatibility. The RTX 4500 Ada's 210 W TDP and 550 W suggested PSU require a conventional desktop power supply, while the N1 16SM's IGP design with no power connectors fits into more constrained platforms. For benchmark-driven workstation tasks, the RTX 4500 Ada is the proven performer; for memory-capacity-bound workloads on an integrated platform, the N1 16SM offers a unique configuration that the RTX 4500 Ada cannot match.