NVIDIA GeForce RTX 5080 vs NVIDIA N1X 40SM Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results between the NVIDIA GeForce RTX 5080 and the NVIDIA N1X 40SM. The head-to-head benchmark array is empty, and neither part registers a win in direct comparison. This absence of matched testing means any performance relationship must be derived from the separately recorded benchmark scores and specification data.

The RTX 5080 carries a complete benchmark suite. Its 3DMark Steel Nomad DX12 score is 8637. Geekbench OpenCL returns 235901, and Geekbench Vulkan reaches 255450. Passmark results span legacy and modern APIs: DirectX 9 at 389, DirectX 10 at 208, DirectX 11 at 324, DirectX 12 at 151, G2D at 1415, G3D at 36565, and GPU Compute at 21789. The average benchmark score across this set is 56083, placing the card at the 87th percentile of all GPUs in the database.

The N1X 40SM has no recorded benchmark scores. Its average benchmark score is 0, and its percentile sits at 50. The nearest rivals list is empty, so there is no direct reference point for its measured performance. The data indicates the N1X 40SM is a different class of product, an integrated graphics processor, rather than a discrete add-in card.

The RTX 5080 does have nearest rival comparisons. The AMD Radeon 8060S averages 55757, a 0.6% deficit. The AMD Radeon RX 6750 GRE 12 GB averages 55698, a 0.7% deficit. The AMD Radeon Pro W5700X averages 54828, a 2.3% deficit. The AMD Radeon RX 9070 GRE averages 57367, which is 2.2% ahead of the RTX 5080. These deltas are small, indicating the RTX 5080 sits in a tight competitive cluster around its average score.

For the N1X 40SM, benchmark data is absent, so no percentage comparisons can be drawn against any rival. The 50th percentile ranking, without any scores, suggests a midpoint placement in the database hierarchy, but the lack of measurement data prevents further quantification.

Architecture Differences

Both parts use the Blackwell 2.0 architecture and are fabricated on a 5 nm process at TSMC. The RTX 5080 uses the GB203 chip with a die size of 378 mm² and 45,600 million transistors, yielding a transistor density of 120.6M per mm². The N1X 40SM uses the GB20B chip with a die size of 382 mm², but its transistor count is listed as unknown, and no transistor density is recorded.

The RTX 5080 is a discrete graphics card in the GeForce 50-series, released on 2025-01-29. The N1X 40SM is an integrated graphics processor in the Blackwell IGP (N1x) generation, with a release date of 2026-05-31. The RTX 5080 has a predecessor in GeForce 40 and a successor in GeForce 60; the N1X 40SM has neither.

Core counts differ substantially. The RTX 5080 has 10752 shading units, 336 TMUs, 112 ROPs, 84 RT cores, and 336 tensor cores. The N1X 40SM has 5120 shading units, 320 TMUs, 40 ROPs, 40 RT cores, and 160 tensor cores. The RTX 5080 more than doubles the shading units and RT cores, and it has nearly three times the ROP count.

Memory architecture is another major split. The RTX 5080 uses 16 GB of GDDR7 on a 256-bit bus, with memory clocks of 1875 MHz (30 Gbps effective) and bandwidth of 960.0 GB/s. The N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus, with memory clocks of 1067 MHz (8.5 Gbps effective) and bandwidth of 273.2 GB/s. The RTX 5080 has roughly 3.5 times the memory bandwidth, while the N1X 40SM has eight times the memory capacity.

Clock behavior also differs. The RTX 5080 has a base clock of 2295 MHz and a boost clock of 2617 MHz. The N1X 40SM has a base clock of 741 MHz and a boost clock of 2346 MHz. The base clock gap is very large, though the boost clocks are somewhat closer.

The RTX 5080 exposes full API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists DirectX as N/A, OpenGL as N/A, and Vulkan as N/A. This indicates the integrated part does not expose the same graphics API surface in the recorded data.

Pixel and texture rates confirm the performance gap. The RTX 5080 achieves 293.1 GPixel/s and 879.3 GTexel/s. The N1X 40SM achieves 93.84 GPixel/s and 750.7 GTexel/s. FP32 compute is 56.28 TFLOPS for the RTX 5080 versus 24.02 TFLOPS for the N1X 40SM, with both parts running FP16 at a 1:1 ratio.

Form factor and power delivery differ completely. The RTX 5080 is a dual-slot card, 304 mm long, 137 mm high, and 40 mm wide, using a 1x 16-pin power connector with a 360 W TDP and a suggested PSU of 750 W. The N1X 40SM is an IGP with no slot width, no dimensions recorded, no power connectors, and its TDP is unknown. The suggested PSU field is null for the N1X 40SM.

Both parts use PCIe 5.0 x16 as the bus interface. Display outputs differ: the RTX 5080 has 1x HDMI 2.1b and 3x DisplayPort 2.1b; the N1X 40SM has 1x HDMI.

FAQ

Q: Which part has the higher average benchmark score?

A: The RTX 5080 has an average benchmark score of 56083, placing it at the 87th percentile of all GPUs. The N1X 40SM has an average benchmark score of 0 and sits at the 50th percentile, with no recorded benchmark results.

Q: How does the memory bandwidth compare between the two parts?

A: The RTX 5080 delivers 960.0 GB/s over a 256-bit GDDR7 interface. The N1X 40SM delivers 273.2 GB/s over a 256-bit LPDDR5X interface. The RTX 5080 has approximately 3.5 times the bandwidth.

Q: What are the FP32 compute figures for each GPU?

A: The RTX 5080 reaches 56.28 TFLOPS FP32, while the N1X 40SM reaches 24.02 TFLOPS FP32. Both parts run FP16 at a 1:1 ratio with their FP32 figures.

Q: Does the N1X 40SM support DirectX 12 Ultimate?

A: No. The N1X 40SM lists DirectX as N/A, OpenGL as N/A, and Vulkan as N/A. The RTX 5080 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the memory capacity difference?

A: The N1X 40SM has 128 GB of LPDDR5X memory, while the RTX 5080 has 16 GB of GDDR7 memory. The N1X 40SM has eight times the capacity, though with much lower bandwidth.

Q: Which part has more RT cores and tensor cores?

A: The RTX 5080 has 84 RT cores and 336 tensor cores. The N1X 40SM has 40 RT cores and 160 tensor cores. The RTX 5080 doubles both counts.

Specification Differences

| Field | NVIDIA GeForce RTX 5080 | NVIDIA N1X 40SM |

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

| Series | GeForce 50-series | None |

| Generation | GeForce 50 | Blackwell IGP (N1x) |

| Chip | GB203 | GB20B |

| Die Size | 378 mm² | 382 mm² |

| Transistors | 45,600 million | Unknown |

| Transistor Density | 120.6M / mm² | None |

| Base Clock | 2295 MHz | 741 MHz |

| Boost Clock | 2617 MHz | 2346 MHz |

| Memory Clock | 1875 MHz 30 Gbps effective | 1067 MHz 8.5 Gbps effective |

| Memory Size | 16 GB | 128 GB |

| Memory Type | GDDR7 | LPDDR5X |

| Memory Bus Width | 256 bit | 256 bit |

| Memory Bandwidth | 960.0 GB/s | 273.2 GB/s |

| Shading Units | 10752 | 5120 |

| TMUs | 336 | 320 |

| ROPs | 112 | 40 |

| RT Cores | 84 | 40 |

| Tensor Cores | 336 | 160 |

| Pixel Rate | 293.1 GPixel/s | 93.84 GPixel/s |

| Texture Rate | 879.3 GTexel/s | 750.7 GTexel/s |

| FP32 | 56.28 TFLOPS | 24.02 TFLOPS |

| FP16 | 56.28 TFLOPS (1:1) | 24.02 TFLOPS (1:1) |

| TDP | 360 W | Unknown |

| Slot Width | Dual-slot | IGP |

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

| Suggested PSU | 750 W | None |

| Display Outputs | 1x HDMI 2.1b, 3x DisplayPort 2.1b | 1x HDMI |

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

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Dimensions | 304 mm x 137 mm x 40 mm | None |

| Release Date | 2025-01-29 | 2026-05-31 |

| Predecessor | GeForce 40 | None |

| Successor | GeForce 60 | None |

| Launch MSRP | 999 USD | None |

| Avg Benchmark Score | 56083 | 0 |

| Percentile | 87 | 50 |

The Verdict

The data presents two products with different roles. The RTX 5080 is a discrete graphics card with a full benchmark profile, an average score of 56083, and a 87th percentile ranking. It has strong compute, high memory bandwidth, and complete API support. Its nearest rivals cluster within a few percent: the AMD Radeon RX 9070 GRE leads by 2.2%, while the AMD Radeon 8060S trails by 0.6%, the AMD Radeon RX 6750 GRE 12 GB trails by 0.7%, and the AMD Radeon Pro W5700X trails by 2.3%. This positions the RTX 5080 in a competitive field near the top of the database.

The N1X 40SM is an integrated graphics processor with no benchmark scores, no nearest rivals, and no API support recorded. It offers a very large memory pool (128 GB LPDDR5X) but low bandwidth (273.2 GB/s) and roughly 43% of the FP32 compute of the RTX 5080 (24.02 TFLOPS versus 56.28 TFLOPS). Its pixel rate (93.84 GPixel/s) is under one-third of the RTX 5080's 293.1 GPixel/s. The N1X 40SM also has a far lower base clock (741 MHz versus 2295 MHz), though its boost clock (2346 MHz) is closer.

For users selecting hardware based on measured performance, the RTX 5080 is the only part with recorded results. Its benchmark scores, including 8637 in 3DMark Steel Nomad and 36565 in Passmark G3D, indicate a high-performance discrete GPU. The N1X 40SM, lacking any benchmark data, cannot be assessed for comparative performance. Its specification profile suggests a specialized integrated solution with emphasis on memory capacity rather than throughput.

The choice depends on the workload. The RTX 5080 suits applications requiring high fill rates, high bandwidth, and modern graphics API support. The N1X 40SM suits scenarios where large memory capacity matters more than compute throughput, but the absence of benchmark results means no performance validation exists in the database. The specification differences are decisive: the RTX 5080 has more shading units, more ROPs, more RT cores, more tensor cores, higher clocks, and over three times the memory bandwidth. The N1X 40SM counters with eight times the memory capacity and a smaller physical footprint as an IGP. The recorded data favors the RTX 5080 for measured performance, while the N1X 40SM remains an unquantified option with distinct memory characteristics.