NVIDIA GeForce RTX 5080 Mobile vs NVIDIA N1X 40SM Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the NVIDIA GeForce RTX 5080 Mobile and the NVIDIA N1X 40SM. The RTX 5080 Mobile has recorded scores across ten different benchmark tests, while the N1X 40SM has no recorded benchmark entries at all. This absence of comparative data means any performance assessment must rely on the architectural specifications and the RTX 5080 Mobile's standalone results.

The RTX 5080 Mobile produces an average benchmark score of 38,349 across its test suite. Its highest single result comes from Geekbench Vulkan at 169,754, followed closely by Geekbench OpenCL at 166,986. The 3DMark Steel Nomad DX12 test yields 4,952. Passmark scores are more modest, with G3D at 27,711, GPU Compute at 12,134, G2D at 1,095, DirectX 11 at 253, DirectX 10 at 171, DirectX 9 at 314, and DirectX 12 at 116.

The RTX 5080 Mobile sits at the 81st percentile among all GPUs in the database. Its nearest rivals show how tightly grouped the mid-range mobile segment is. The GeForce MX570 averages 38,299, a delta of 0.1 percent against the RTX 5080 Mobile. The RTX 4080 Mobile averages 38,135, a delta of 0.6 percent. On the other side, the MX570 A averages 38,691, a delta of -0.9 percent, and the AMD Radeon Pro 580X averages 38,706, also a delta of -0.9 percent. These four rivals surround the RTX 5080 Mobile within a spread of roughly 1.5 percent, indicating that the RTX 5080 Mobile lands in an extremely competitive performance band where small architectural differences determine placement.

The N1X 40SM holds a 50th percentile ranking among all GPUs, but with an average benchmark score of zero and no recorded tests, this percentile appears to be a placeholder rather than a measured result. The data cannot confirm any performance level for the N1X 40SM beyond what its specifications imply.

Where Each One Wins

The RTX 5080 Mobile demonstrates measurable performance across every major graphics API. Its Passmark DirectX 9 score of 314 exceeds its DirectX 10 score of 171, its DirectX 11 score of 253, and its DirectX 12 score of 116. This pattern suggests the architecture handles legacy API workloads efficiently, while newer API performance, particularly DirectX 12, remains comparatively modest. The 3DMark Steel Nomad DX12 result of 4,952 provides a modern gaming workload reference point.

The RTX 5080 Mobile also shows strong compute capability. Geekbench OpenCL at 166,986 and Vulkan at 169,754 are nearly identical, indicating balanced compute throughput across both APIs. Passmark GPU Compute at 12,134 reinforces this compute-oriented strength. For users running productivity applications that leverage GPU acceleration, these scores indicate solid general-purpose compute performance.

The N1X 40SM has no recorded wins because no benchmark data exists. Its specification sheet, however, reveals where it could theoretically compete. The N1X 40SM carries 5,120 shading units, 320 texture mapping units, and 40 render output units. Its FP32 throughput reaches 24.02 TFLOPS, slightly above the RTX 5080 Mobile's 23.04 TFLOPS. Texture rate for the N1X 40SM is 750.7 GTexel/s, more than double the RTX 5080 Mobile's 360.0 GTexel/s. These numbers suggest the N1X 40SM could excel in texture-heavy workloads if benchmark results ever confirm it.

The RTX 5080 Mobile counters with a higher pixel rate of 144.0 GPixel/s versus 93.84 GPixel/s for the N1X 40SM. Memory bandwidth also favors the RTX 5080 Mobile at 896.0 GB/s compared to 273.2 GB/s. The RTX 5080 Mobile's 16 GB of GDDR7 memory provides faster access, while the N1X 40SM's 128 GB of LPDDR5X provides far greater capacity.

FAQ

Q: How does the RTX 5080 Mobile compare to its closest rivals in the database?

A: The RTX 5080 Mobile averages 38,349 across all benchmarks. It sits 0.1 percent above the GeForce MX570 (38,299) and 0.6 percent above the RTX 4080 Mobile (38,135). It trails the MX570 A (38,691) by 0.9 percent and the AMD Radeon Pro 580X (38,706) by 0.9 percent. All four rivals fall within a 1.5 percent band.

Q: What is the N1X 40SM's recorded benchmark performance?

A: The database contains no benchmark entries for the N1X 40SM. Its average benchmark score is zero, and it has no nearest rivals listed. Its 50th percentile ranking among all GPUs has no supporting measurement data.

Q: Which GPU has higher raw compute throughput?

A: The N1X 40SM achieves 24.02 TFLOPS FP32, while the RTX 5080 Mobile achieves 23.04 TFLOPS. The N1X 40SM holds a small advantage in raw floating-point throughput, roughly 4 percent higher based on the recorded figures.

Q: How do memory configurations differ between the two?

A: The RTX 5080 Mobile uses 16 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s bandwidth. The N1X 40SM uses 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth. The RTX 5080 Mobile delivers over three times the bandwidth, while the N1X 40SM offers eight times the capacity.

Q: Which GPU supports newer graphics APIs?

A: The RTX 5080 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists DirectX, OpenGL, and Vulkan as N/A in the database, meaning no API support is recorded.

Q: What are the clock speed differences?

A: The RTX 5080 Mobile has a base clock of 975 MHz and a boost clock of 1500 MHz. The N1X 40SM has a base clock of 741 MHz and a boost clock of 2346 MHz. The N1X 40SM boosts 56 percent higher, while the RTX 5080 Mobile starts from a 32 percent higher base clock.

Specification Differences

The RTX 5080 Mobile uses the GB203 chip, while the N1X 40SM uses the GB20B chip. Both share the Blackwell 2.0 architecture and a 5 nm TSMC process node. The RTX 5080 Mobile packs 45,600 million transistors on a 378 mm² die, giving a transistor density of 120.6 million per square millimeter. The N1X 40SM's transistor count is unknown, and its die size is 382 mm².

Memory separates the two significantly. The RTX 5080 Mobile has 16 GB of GDDR7 with a 256-bit bus and 896.0 GB/s bandwidth. The N1X 40SM has 128 GB of LPDDR5X, also on a 256-bit bus, but bandwidth drops to 273.2 GB/s. Memory clocks differ accordingly: 1750 MHz with 28 Gbps effective for the RTX 5080 Mobile versus 1067 MHz with 8.5 Gbps effective for the N1X 40SM.

Shader configurations differ in distribution. The RTX 5080 Mobile has 7,680 shading units, 240 TMUs, and 96 ROPs. The N1X 40SM has 5,120 shading units, 320 TMUs, and 40 ROPs. The RTX 5080 Mobile carries 60 ray tracing cores and 240 tensor cores. The N1X 40SM carries 40 ray tracing cores and 160 tensor cores.

Clock speeds show a trade-off. The RTX 5080 Mobile runs at 975 MHz base and 1500 MHz boost. The N1X 40SM runs at 741 MHz base and 2346 MHz boost. Pixel rates favor the RTX 5080 Mobile at 144.0 GPixel/s versus 93.84 GPixel/s. Texture rates heavily favor the N1X 40SM at 750.7 GTexel/s versus 360.0 GTexel/s. FP32 and FP16 both run at 1:1 ratios, with the RTX 5080 Mobile at 23.04 TFLOPS and the N1X 40SM at 24.02 TFLOPS.

Power and connectivity also differ. The RTX 5080 Mobile lists an 80 W TDP, while the N1X 40SM's TDP is unknown. Both are IGP slot width with no power connectors. Both use PCIe 5.0 x16. Display outputs are portable device dependent for the RTX 5080 Mobile, while the N1X 40SM lists one HDMI output.

Release timing differs. The RTX 5080 Mobile released on April 1, 2025. The N1X 40SM released on May 31, 2026, over a year later.

Architecture Differences

Both GPUs use NVIDIA's Blackwell 2.0 architecture on a 5 nm TSMC process, so the fundamental architecture generation is identical. The differences emerge in how each chip configures its execution resources.

The RTX 5080 Mobile relies on the GB203 chip with a dense transistor layout of 45,600 million transistors across 378 mm². Its 7,680 shading units feed 240 TMUs and 96 ROPs. This configuration emphasizes pixel throughput and shading parallelism. The 60 ray tracing cores and 240 tensor cores provide dedicated acceleration for ray-traced workloads and AI inference tasks.

The N1X 40SM uses the GB20B chip with an unknown transistor count on a 382 mm² die. Its 5,120 shading units feed 320 TMUs but only 40 ROPs. The higher TMU count gives it a texture-heavy architecture, while the lower ROP count limits pixel output. The 40 ray tracing cores and 160 tensor cores are fewer than the RTX 5080 Mobile's, but still present for hardware-accelerated ray tracing.

The RTX 5080 Mobile's boost clock of 1500 MHz is conservative, but its memory system compensates with GDDR7 running at 28 Gbps effective. The N1X 40SM boosts to 2346 MHz, a 56 percent higher boost clock, but its LPDDR5X memory runs at 8.5 Gbps effective. This clock advantage lets the N1X 40SM reach 750.7 GTexel/s texture throughput despite fewer shading units, while the RTX 5080 Mobile's higher ROP count and faster memory drive its 144.0 GPixel/s pixel rate.

The N1X 40SM's 128 GB memory capacity is its defining architectural feature. No other specification in the database comes close to this capacity for an integrated GPU. The trade-off is bandwidth: 273.2 GB/s is roughly one third of the RTX 5080 Mobile's 896.0 GB/s. This makes the N1X 40SM suited for capacity-hungry workloads that do not require rapid memory access, while the RTX 5080 Mobile suits bandwidth-sensitive workloads.

API support separates the two at a fundamental level. The RTX 5080 Mobile lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists all three as N/A. This means the N1X 40SM has no recorded support for modern graphics APIs, limiting its use to workloads that do not depend on these interfaces.

The Verdict

The recorded data supports the RTX 5080 Mobile as the measured performer. It has ten benchmark scores, an 81st percentile ranking, and an average score of 38,349 that places it within 1 percent of four established rivals. Its 896.0 GB/s memory bandwidth, 96 ROPs, and 144.0 GPixel/s pixel rate give it clear advantages in bandwidth-sensitive and rasterization-heavy tasks. The DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support makes it usable across modern gaming and compute workloads.

The N1X 40SM offers no measured performance data. Its specifications indicate a different design philosophy: 128 GB of memory capacity, 320 TMUs, and 24.02 TFLOPS FP32 throughput. These figures suggest strength in texture-heavy and memory-capacity-intensive workloads, but without benchmark scores, the database cannot confirm actual performance. The lack of API support records further limits its applicability to standard graphics workloads.

For users who need confirmed gaming and general-purpose GPU performance with high memory bandwidth, the RTX 5080 Mobile is the only choice supported by measurement data. For users who require massive memory capacity in a single GPU and can work without recorded API support, the N1X 40SM presents an unverified option whose real-world behavior remains undocumented. The data favors the RTX 5080 Mobile until the N1X 40SM produces benchmark results.