NVIDIA N1X 48SM vs NVIDIA RTX 500 Mobile Ada Generation Comparison

Where Each One Wins

The recorded data separates these two NVIDIA mobile GPUs clearly by design intent. The NVIDIA N1X 48SM is an integrated graphics processor built on the Blackwell 2.0 architecture, while the NVIDIA RTX 500 Mobile Ada Generation is a discrete-class mobile part based on Ada Lovelace. Their benchmark profiles, however, show no direct head-to-head wins in the database, as both parts hold identical percentile positions and average scores of 0 in the recorded measurements. This means the distinction between them comes from their architectural and specification differences rather than from measured performance deltas.

The N1X 48SM wins on raw compute resource counts. It carries 6144 shading units, 384 texture mapping units, 48 ROPs, 48 ray tracing cores, and 192 tensor cores. That is three times the shading units of the RTX 500 Mobile (2048), six times the texture units (64), and three times the tensor cores (64). In floating-point throughput, the N1X 48SM delivers 28.83 TFLOPS for both FP32 and FP16, versus 8.294 TFLOPS for the RTX 500 Mobile. The N1X also dominates memory capacity with 128 GB of LPDDR5X on a 256-bit bus, yielding 273.2 GB/s of bandwidth. The RTX 500 Mobile offers 4 GB of GDDR6 on a 64-bit bus with 128.0 GB/s.

The RTX 500 Mobile wins on software feature support and efficiency parameters. It exposes DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1X lists N/A for all three APIs in the database. The RTX 500 Mobile also has a documented 35 W thermal design power, whereas the N1X TDP is listed as unknown. The RTX 500 Mobile uses a smaller die at 159 mm² with 18,900 million transistors and a density of 118.9M per mm², while the N1X uses a 382 mm² die with unknown transistor count.

The use-case split is therefore structural. The N1X 48SM is positioned for high-bandwidth, high-throughput integrated computing with massive memory capacity. The RTX 500 Mobile is positioned for portable devices needing full API compatibility and a known power envelope. Neither part shows a measured benchmark advantage in the database, so the choice hinges on whether the workload requires the N1X's compute scale or the RTX 500's software stack and mobility profile.

The Verdict

The data indicates that these two GPUs serve different segments and should not be treated as direct competitors. The NVIDIA N1X 48SM targets environments where memory bandwidth and compute density matter most: 128 GB of LPDDR5X, 273.2 GB/s, and 28.83 TFLOPS of FP32 throughput. The NVIDIA RTX 500 Mobile Ada Generation targets portable devices that need a complete graphics API stack, including DirectX 12 Ultimate, Vulkan 1.4, and OpenGL 4.6, within a 35 W envelope.

For users who need maximum raw compute and memory capacity in an integrated form factor, the N1X 48SM is the clear choice from the specification data. It offers 6144 shading units, 384 TMUs, and 192 tensor cores, all running on a 256-bit memory bus. The 128 GB memory pool is unmatched by the RTX 500 Mobile's 4 GB.

For users who need software compatibility and a defined power budget, the RTX 500 Mobile is the only option with recorded API support. It also has a smaller die (159 mm² vs 382 mm²), which suggests lower manufacturing complexity, and it lists a predecessor (Ampere-MW) and successor (Blackwell-MW), indicating an established product lifecycle.

The percentile positions are identical at 50 for both parts, and the average benchmark score is 0 for both. There is no performance winner in the database. The verdict must therefore be based on feature fit: the N1X 48SM for compute-heavy integrated workloads, the RTX 500 Mobile for portable, API-complete graphics.

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark results between the NVIDIA N1X 48SM and the NVIDIA RTX 500 Mobile Ada Generation. Both parts show zero wins in the head-to-head comparison fields, and neither has any benchmark entries or nearest rivals listed. The average benchmark score for both is 0, and both occupy the 50th percentile among all GPUs in the database.

Without measured performance data, the comparison must rely on specification-level differences. The largest numeric gap is in FP32 compute: the N1X 48SM delivers 28.83 TFLOPS, which is 3.48 times the RTX 500 Mobile's 8.294 TFLOPS. The texture rate difference is even larger: 900.9 GTexel/s versus 129.6 GTexel/s, a ratio of 6.95 to 1. The pixel rate gap is 112.6 GPixel/s versus 64.80 GPixel/s, a 1.74 to 1 advantage for the N1X.

Memory bandwidth shows a 2.13 to 1 advantage for the N1X, at 273.2 GB/s versus 128.0 GB/s. Memory capacity is 32 times larger on the N1X. The RTX 500 Mobile counters with a higher base clock (1485 MHz vs 741 MHz) and a higher memory clock (2000 MHz vs 1067 MHz), though the boost clocks are closer: 2025 MHz for the RTX 500 Mobile versus 2346 MHz for the N1X. The N1X actually boosts to a higher frequency despite the lower base clock.

The RTX 500 Mobile also has a higher transistor density at 118.9M per mm², while the N1X transistor count is unknown. The N1X uses a 5 nm process from TSMC, as does the RTX 500 Mobile, so the process node does not differentiate them.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA N1X 48SM has 6144 shading units, while the NVIDIA RTX 500 Mobile Ada Generation has 2048. The N1X has exactly three times the shading units of the RTX 500 Mobile.

Q: What is the memory capacity difference?

A: The N1X 48SM comes with 128 GB of LPDDR5X memory, while the RTX 500 Mobile has 4 GB of GDDR6. The N1X memory capacity is 32 times larger.

Q: Which GPU supports DirectX 12 Ultimate?

A: The NVIDIA RTX 500 Mobile Ada Generation supports DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4. The N1X 48SM lists N/A for DirectX, OpenGL, and Vulkan in the database.

Q: What is the thermal design power of each GPU?

A: The RTX 500 Mobile has a documented 35 W TDP. The N1X 48SM TDP is listed as unknown in the database.

Q: How do the memory buses compare?

A: The N1X 48SM uses a 256-bit memory bus, while the RTX 500 Mobile uses a 64-bit bus. The N1X bus width is four times larger.

Q: What are the release dates?

A: The N1X 48SM was released on 2026-05-31, and the RTX 500 Mobile was released on 2024-02-25. The RTX 500 Mobile has an earlier release date by over two years.

Architecture Differences

The NVIDIA N1X 48SM is built on the Blackwell 2.0 architecture using the GB20B chip, and it belongs to the Blackwell IGP (N1x) generation. The NVIDIA RTX 500 Mobile Ada Generation uses the Ada Lovelace architecture with the AD107 chip, and it belongs to the Ada-MW (x000A) generation. Both are manufactured by NVIDIA on a 5 nm process from TSMC, but the architectural lineage differs fundamentally.

The N1X 48SM has a die size of 382 mm² with an unknown transistor count. The RTX 500 Mobile has a die size of 159 mm² with 18,900 million transistors and a transistor density of 118.9M per mm². The N1X die is 2.4 times larger by area, but its transistor density cannot be calculated from the available data.

The N1X 48SM includes 48 ray tracing cores and 192 tensor cores. The RTX 500 Mobile includes 16 ray tracing cores and 64 tensor cores. The N1X has three times the ray tracing cores and three times the tensor cores of the RTX 500 Mobile. Both parts have identical FP32-to-FP16 ratios at 1:1, meaning the FP16 throughput equals the FP32 throughput for each.

The N1X 48SM lists its API support as N/A for DirectX, OpenGL, and Vulkan. The RTX 500 Mobile exposes DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This is a critical architectural difference: the N1X appears to lack a conventional graphics API stack in the recorded data, while the RTX 500 Mobile is fully API-compatible. The N1X also uses a PCIe 5.0 x16 bus interface, while the RTX 500 Mobile uses PCIe 4.0 x8. The N1X has one HDMI display output, while the RTX 500 Mobile's display outputs are listed as "Portable Device Dependent."

The production status for both parts is Active. The RTX 500 Mobile lists a predecessor (Ampere-MW) and a successor (Blackwell-MW), while the N1X has no predecessor or successor recorded. The N1X uses LPDDR5X memory, and the RTX 500 Mobile uses GDDR6, reflecting different memory technology generations.

Specification Differences

The two GPUs differ across nearly every specification field in the database. The table below summarizes only the fields where the two parts differ.

| Specification | NVIDIA N1X 48SM | NVIDIA RTX 500 Mobile Ada Generation |

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

| Chip | GB20B | AD107 |

| Architecture | Blackwell 2.0 | Ada Lovelace |

| Generation | Blackwell IGP (N1x) | Ada-MW (x000A) |

| Transistors | unknown | 18,900 million |

| Die Size | 382 mm² | 159 mm² |

| Transistor Density | null | 118.9M / mm² |

| Base Clock | 741 MHz | 1485 MHz |

| Boost Clock | 2346 MHz | 2025 MHz |

| Memory Clock | 1067 MHz 8.5 Gbps effective | 2000 MHz 16 Gbps effective |

| Memory Size | 128 GB | 4 GB |

| Memory Type | LPDDR5X | GDDR6 |

| Memory Bus Width | 256 bit | 64 bit |

| Memory Bandwidth | 273.2 GB/s | 128.0 GB/s |

| Shading Units | 6144 | 2048 |

| TMUs | 384 | 64 |

| ROPs | 48 | 32 |

| RT Cores | 48 | 16 |

| Tensor Cores | 192 | 64 |

| Pixel Rate | 112.6 GPixel/s | 64.80 GPixel/s |

| Texture Rate | 900.9 GTexel/s | 129.6 GTexel/s |

| FP32 | 28.83 TFLOPS | 8.294 TFLOPS |

| FP16 | 28.83 TFLOPS (1:1) | 8.294 TFLOPS (1:1) |

| TDP | unknown | 35 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x8 |

| Display Outputs | 1x HDMI | Portable Device Dependent |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Release Date | 2026-05-31 | 2024-02-25 |

| Predecessor | null | Ampere-MW |

| Successor | null | Blackwell-MW |

The identical fields are the manufacturer (NVIDIA), process node (5 nm), foundry (TSMC), slot width (IGP), power connectors (None), and production status (Active). Both parts have null dimensions, null suggested PSU, and no launch MSRP recorded. The N1X 48SM is the larger, higher-throughput part with more memory and more compute resources. The RTX 500 Mobile is the smaller, API-complete part with a known power draw and a defined product lineage.