NVIDIA GeForce RTX 5090 Mobile vs NVIDIA N1 16SM Comparison

The NVIDIA GeForce RTX 5090 Mobile and the NVIDIA N1 16SM both come from NVIDIA, share the Blackwell 2.0 architecture, and are built on TSMC’s 5 nm process, but they target entirely different roles in the product stack. The RTX 5090 Mobile is a high-end discrete mobile GPU in the GeForce 50 Mobile generation, while the N1 16SM is an integrated graphics processor (IGP) from the Blackwell IGP (N1x) generation. The database records no shared head-to-head benchmark entries, so the comparison relies on each part’s own measured results, specifications, and relative standing among all GPUs.

Head-to-Head Benchmarks

The RTX 5090 Mobile has a full suite of benchmark results, while the N1 16SM has no recorded benchmark scores in the database. The RTX 5090 Mobile delivers an average benchmark score of 45,152 across all tested workloads. Its percentile ranking among all GPUs is 84, meaning it outperforms the vast majority of recorded graphics processors. The N1 16SM holds a percentile of 50, which places it at the median of all GPUs, but with an average benchmark score of 0 because no tests have been logged for it.

Looking at specific workloads, the RTX 5090 Mobile scores 5,871 in 3DMark Steel Nomad DX12, 201,834 in Geekbench OpenCL, and 198,405 in Geekbench Vulkan. In Passmark tests, it records 30,034 in G3D, 13,401 in GPU Compute, 1,057 in G2D, 324 in DirectX 9, 269 in DirectX 11, 183 in DirectX 10, and 138 in DirectX 12. These numbers illustrate a wide-ranging capability across synthetic gaming and compute workloads.

The N1 16SM’s lack of benchmark data means there are no direct wins for either side. The RTX 5090 Mobile can be characterized as a high-performing part based on its recorded scores and 84th percentile standing. The N1 16SM sits at the 50th percentile, which in the database indicates a middle-of-the-pack position, but without measured scores, its practical performance cannot be quantified from the recorded data. The RTX 5090 Mobile’s nearest rivals in the database include the AMD Radeon Pro 5500 XT with an average score of 45,384 and a delta of -0.5%, the NVIDIA GeForce RTX 4070 Ti with 44,795 and +0.8%, the Intel Arc A730M with 45,592 and -1%, and the NVIDIA RTX 5880 Ada Generation with 45,972 and -1.8%. These deltas show the RTX 5090 Mobile falls within a tight performance band around those parts, slightly ahead of the RTX 4070 Ti and marginally behind the others.

FAQ

Q: Which GPU has the higher FP32 compute throughput?

A: The RTX 5090 Mobile delivers 31.80 TFLOPS of FP32 performance, while the N1 16SM provides 9.609 TFLOPS. The RTX 5090 Mobile offers more than three times the raw FP32 throughput.

Q: What memory configurations do the two GPUs use?

A: The RTX 5090 Mobile has 24 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s of bandwidth. The N1 16SM uses 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s of bandwidth.

Q: Are the APIs supported by each GPU the same?

A: No. The RTX 5090 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1 16SM lists DirectX as N/A, OpenGL as N/A, and Vulkan as N/A, indicating no recorded API support in the database.

Q: What are the boost clock speeds?

A: The RTX 5090 Mobile boosts to 1515 MHz, while the N1 16SM boosts to 2346 MHz. The N1 16SM has a higher boost clock despite lower overall compute resources.

Q: How do the shading unit counts compare?

A: The RTX 5090 Mobile has 10,496 shading units, whereas the N1 16SM has 2,048 shading units. The RTX 5090 Mobile has over five times as many shading units.

Q: What is the production status and release timing?

A: Both GPUs are listed as Active in production. The RTX 5090 Mobile has a release date of 2025-03-26, and the N1 16SM has a release date of 2026-05-31.

Architecture Differences

Both GPUs are built on the Blackwell 2.0 architecture and use TSMC’s 5 nm process node, so the fundamental manufacturing technology is identical. The chips differ in die size and configuration. The RTX 5090 Mobile uses the GB203 chip with a die size of 378 mm² and 45,600 million transistors, giving a transistor density of 120.6 million transistors per mm². The N1 16SM uses the GB20B chip with a die size of 382 mm², but its transistor count is recorded as unknown, and no density figure is available.

The memory subsystems are architecturally distinct. The RTX 5090 Mobile pairs 24 GB of GDDR7 with a 256-bit bus and 896.0 GB/s bandwidth, a high-speed dedicated memory solution. The N1 16SM integrates 128 GB of LPDDR5X, also on a 256-bit bus, but with 273.2 GB/s bandwidth, reflecting a unified memory design typical of integrated processors. The memory clock differs as well: the RTX 5090 Mobile runs at 1750 MHz with 28 Gbps effective speed, while the N1 16SM runs at 1067 MHz with 8.5 Gbps effective speed.

The compute resource counts diverge sharply. The RTX 5090 Mobile contains 10,496 shading units, 328 texture mapping units (TMUs), 112 raster output units (ROPs), 82 ray tracing cores, and 328 tensor cores. The N1 16SM has 2,048 shading units, 128 TMUs, 24 ROPs, 16 ray tracing cores, and 64 tensor cores. Pixel and texture rates follow this pattern: the RTX 5090 Mobile achieves 169.7 GPixel/s and 496.9 GTexel/s, while the N1 16SM achieves 56.30 GPixel/s and 300.3 GTexel/s.

Clock behavior differs as well. The RTX 5090 Mobile has a base clock of 990 MHz and a boost clock of 1515 MHz. The N1 16SM has a lower base clock of 741 MHz but a higher boost clock of 2346 MHz. The FP16 performance is listed as 1:1 with FP32 for both parts, meaning the RTX 5090 Mobile delivers 31.80 TFLOPS FP16 and the N1 16SM delivers 9.609 TFLOPS FP16.

The RTX 5090 Mobile carries full API support for DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1 16SM reports N/A for all three APIs in the database. Both connect via PCIe 5.0 x16 and are classified as IGP slot width with no power connectors. The RTX 5090 Mobile has a TDP of 95 W, while the N1 16SM’s TDP is unknown. Display outputs are listed as portable device dependent for the RTX 5090 Mobile and as 1x HDMI for the N1 16SM.

The Verdict

The data points to two different product philosophies. The RTX 5090 Mobile is a discrete-class mobile GPU designed for maximum compute and graphics throughput. Its 31.80 TFLOPS FP32, 896.0 GB/s memory bandwidth, and 84th percentile ranking among all GPUs confirm it as a high-end part. Its 10,496 shading units and 82 ray tracing cores give it substantial headroom for demanding workloads, and its DX12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support make it broadly compatible with modern graphics APIs.

The N1 16SM is an integrated GPU with a different set of priorities. Its 128 GB LPDDR5X memory capacity is far larger than the RTX 5090 Mobile’s 24 GB, which suggests a use case centered on unified memory pools rather than dedicated VRAM. Its higher boost clock of 2346 MHz indicates an ability to ramp frequency when needed, but its lower shading unit count, 2,048, and reduced FP32 throughput of 9.609 TFLOPS place it far below the RTX 5090 Mobile in raw compute. The N1 16SM’s median percentile of 50 and absence of benchmark scores mean the database cannot confirm its real-world performance, but its specifications show a part that is not intended to compete with the RTX 5090 Mobile on graphics horsepower.

For users selecting a GPU strictly on measured performance, the RTX 5090 Mobile is the clear choice. Its average benchmark score of 45,152 and percentile of 84 place it in the upper tier of all GPUs, and its nearest rivals all fall within a narrow range of its score. For scenarios where a large unified memory pool and low power integration matter more than peak GPU compute, the N1 16SM’s 128 GB memory capacity and IGP form factor are the distinguishing features. The absence of API support in the database for the N1 16SM does raise compatibility questions, but that likely reflects its role as an integrated processor rather than a standalone graphics card.

Specification Differences

The two GPUs differ in nearly every measurable specification except architecture, process node, foundry, manufacturer, bus interface, slot width, and power connectors. The chip names are different: GB203 for the RTX 5090 Mobile and GB20B for the N1 16SM. Die size is close, 378 mm² versus 382 mm², but transistor counts are not comparable because the N1 16SM’s count is unknown.

Memory is the largest divergence. The RTX 5090 Mobile uses 24 GB GDDR7 with 896.0 GB/s bandwidth, while the N1 16SM uses 128 GB LPDDR5X with 273.2 GB/s bandwidth. Both use a 256-bit bus, but the memory clocks differ: 1750 MHz (28 Gbps effective) versus 1067 MHz (8.5 Gbps effective).

Compute resources scale accordingly. The RTX 5090 Mobile has 10,496 shading units, 328 TMUs, 112 ROPs, 82 ray tracing cores, and 328 tensor cores. The N1 16SM has 2,048 shading units, 128 TMUs, 24 ROPs, 16 ray tracing cores, and 64 tensor cores. Pixel rate is 169.7 GPixel/s for the RTX 5090 Mobile and 56.30 GPixel/s for the N1 16SM. Texture rate is 496.9 GTexel/s versus 300.3 GTexel/s. FP32 and FP16 are both 31.80 TFLOPS for the RTX 5090 Mobile and 9.609 TFLOPS for the N1 16SM.

Clock speeds follow an inverse pattern. The RTX 5090 Mobile has a base clock of 990 MHz and a boost of 1515 MHz. The N1 16SM has a base of 741 MHz and a boost of 2346 MHz. TDP is 95 W for the RTX 5090 Mobile and unknown for the N1 16SM. Display outputs are portable device dependent for the RTX 5090 Mobile and 1x HDMI for the N1 16SM. API support is full for the RTX 5090 Mobile and N/A for the N1 16SM. The release dates differ as well, with the RTX 5090 Mobile dated 2025-03-26 and the N1 16SM dated 2026-05-31.

Where Each One Wins

The RTX 5090 Mobile wins in every category where raw GPU performance is the deciding factor. Its FP32 throughput of 31.80 TFLOPS is more than three times that of the N1 16SM. Its memory bandwidth of 896.0 GB/s gives it a massive advantage for data-heavy workloads, even though the N1 16SM has far more total memory capacity. The RTX 5090 Mobile’s shading unit count of 10,496 and ray tracing core count of 82 make it suited for high-resolution gaming and complex rendering tasks. Its pixel rate of 169.7 GPixel/s and texture rate of 496.9 GTexel/s are both significantly higher. The recorded benchmark scores, including 30,034 in Passmark G3D and 201,834 in Geekbench OpenCL, confirm its strong standing, and its 84th percentile ranking places it well above the N1 16SM’s 50th percentile.

The N1 16SM wins in memory capacity and clock frequency. Its 128 GB of LPDDR5X memory dwarfs the RTX 5090 Mobile’s 24 GB, which is relevant for systems that pool system and graphics memory. Its boost clock of 2346 MHz exceeds the RTX 5090 Mobile’s 1515 MHz, suggesting a design that can spike to higher frequencies when needed. As an IGP with no power connectors and a slot width of IGP, it fits into integrated form factors where the RTX 5090 Mobile’s discrete design would not apply. Its release date of 2026-05-31 is later than the RTX 5090 Mobile’s 2025-03-26, so it is a newer part in the database.

For workloads that stress pure GPU compute, graphics rendering, or high-bandwidth dedicated memory, the RTX 5090 Mobile is the superior part. For systems requiring a large unified memory pool or a compact integrated GPU with a high boost clock, the N1 16SM offers those characteristics. The N1 16SM’s lack of benchmark data means the database cannot confirm its performance, but its specification profile points to a different role than the RTX 5090 Mobile, one where memory size and integration take precedence over peak throughput.