NVIDIA N1X 40SM vs Lisuan Tech LX ULTRA Comparison

Head-to-Head Benchmarks

The recorded data for the NVIDIA N1X 40SM and Lisuan Tech LX ULTRA shows no direct head-to-head benchmark entries, and both products hold an identical percentile rank of 50 among all GPUs in the database. Their average benchmark scores are both zero, indicating that no standardized benchmark results have been logged for either device. This absence of measured performance data means that any direct comparison must rely entirely on the architectural specifications and theoretical throughput figures recorded in the database.

The strongest performance indicator for the NVIDIA N1X 40SM is its FP32 throughput of 24.02 TFLOPS, which is nearly identical to the Lisuan Tech LX ULTRA's 24.58 TFLOPS. The difference amounts to only 0.56 TFLOPS, roughly 2.3 percent in favor of the LX ULTRA. This near-parity in single-precision floating-point performance suggests that for compute workloads relying primarily on FP32 arithmetic, both devices would deliver comparable raw throughput. However, the situation diverges significantly when examining FP16 performance. The NVIDIA N1X 40SM delivers 24.02 TFLOPS in FP16 with a 1:1 ratio relative to FP32, meaning it offers no additional throughput when switching to half-precision. The Lisuan Tech LX ULTRA, by contrast, delivers 49.15 TFLOPS in FP16 with a 2:1 ratio, effectively doubling its FP32 throughput. This gives the LX ULTRA a clear 25.13 TFLOPS advantage in half-precision workloads, more than double the N1X 40SM's FP16 capability.

Memory bandwidth presents another substantial divergence. The Lisuan Tech LX ULTRA records a bandwidth of 432.0 GB/s, while the NVIDIA N1X 40SM reaches 273.2 GB/s. This 158.8 GB/s difference represents a 58.1 percent bandwidth advantage for the LX ULTRA. The impact of this gap is most pronounced in memory-bound workloads such as large dataset processing, texture streaming, or high-resolution compute tasks. The NVIDIA N1X 40SM compensates with a much larger memory pool of 128 GB, versus 24 GB on the LX ULTRA, using LPDDR5X memory on a 256-bit bus, while the LX ULTRA uses GDDR6 on a 192-bit bus. The wider bus on the N1X 40SM partially offsets its lower memory clock, but the effective bandwidth numbers clearly favor the LX ULTRA.

Pixel and texture throughput also favor different devices. The Lisuan Tech LX ULTRA achieves a pixel rate of 192.0 GPixel/s, which is more than double the NVIDIA N1X 40SM's 93.84 GPixel/s. This 98.16 GPixel/s gap indicates that the LX ULTRA is substantially faster at rasterization-bound operations, such as filling pixels in traditional rendering pipelines. Conversely, the NVIDIA N1X 40SM records a texture rate of 750.7 GTexel/s, nearly double the LX ULTRA's 384.0 GTexel/s. This 366.7 GTexel/s advantage suggests the N1X 40SM excels at texture-heavy workloads, where its 320 texture mapping units outperform the LX ULTRA's 192 TMUs despite the latter having more shading units overall.

Shading unit counts further differentiate the two. The Lisuan Tech LX ULTRA contains 6144 shading units, compared to 5120 on the NVIDIA N1X 40SM, a difference of 1024 units. The LX ULTRA also has 96 ROPs versus 40 on the N1X 40SM, more than double the render output capability. However, the N1X 40SM includes 40 RT cores and 160 tensor cores, while the LX ULTRA records no RT cores and no tensor cores in the database. This architectural feature gap means the N1X 40SM supports ray tracing and tensor acceleration natively, while the LX ULTRA has no such dedicated hardware recorded.

Where Each One Wins

For raw FP32 compute, the Lisuan Tech LX ULTRA holds a marginal edge with its 24.58 TFLOPS, but the NVIDIA N1X 40SM's 24.02 TFLOPS is close enough that real-world differences would likely be minimal. The LX ULTRA wins decisively in FP16 throughput, delivering 49.15 TFLOPS against the N1X 40SM's 24.02 TFLOPS. Applications that leverage half-precision arithmetic, such as certain AI inference workloads or graphics processing with FP16 render targets, would see a clear benefit from the LX ULTRA.

Memory bandwidth is another clear victory for the Lisuan Tech LX ULTRA. With 432.0 GB/s available, it outperforms the NVIDIA N1X 40SM's 273.2 GB/s by a wide margin. Workloads that stream large volumes of data, such as high-resolution texture loading, video processing, or scientific computing with large arrays, would favor the LX ULTRA. However, the NVIDIA N1X 40SM counters with its 128 GB memory capacity, which is over five times larger than the LX ULTRA's 24 GB. For tasks requiring massive in-memory datasets, such as large language model inference or complex simulations that exceed 24 GB, the N1X 40SM is the only viable option.

Rasterization performance, measured by pixel rate, heavily favors the Lisuan Tech LX ULTRA at 192.0 GPixel/s versus 93.84 GPixel/s. Traditional game rendering at high resolutions, where pixel fill rate becomes a bottleneck, would benefit from the LX ULTRA's superior ROP count of 96. Conversely, texture-heavy workloads, where the NVIDIA N1X 40SM's 750.7 GTexel/s versus 384.0 GTexel/s gives it a definitive advantage, would favor the N1X 40SM. This could include advanced texture filtering, anisotropic filtering scenarios, or procedural texture generation.

The NVIDIA N1X 40SM's dedicated RT cores and tensor cores provide capabilities the LX ULTRA does not record. Ray-traced rendering, if supported by the software stack, would only be possible on the N1X 40SM. Similarly, tensor core acceleration for matrix operations is exclusive to the N1X 40SM. The LX ULTRA's API support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3 gives it a software compatibility advantage, while the N1X 40SM records N/A for all APIs, meaning it lacks documented support for these standard graphics interfaces.

Architecture Differences

The NVIDIA N1X 40SM uses the GB20B chip built on a 5 nm process at TSMC, with a die size of 382 mm². The Lisuan Tech LX ULTRA uses the 7G105 chip on a 6 nm process, also at TSMC, with an unknown die size. The 5 nm node offers a smaller process geometry, which could contribute to the N1X 40SM's higher transistor density per area, though exact transistor counts are not recorded for either device. The N1X 40SM is part of the Blackwell 2.0 architecture within the Blackwell IGP generation, while the LX ULTRA belongs to the TrueGPU architecture within the 7G100 generation.

The NVIDIA N1X 40SM operates with a base clock of 741 MHz and a boost clock of 2346 MHz, while the Lisuan Tech LX ULTRA records no base or boost clock values. Memory clocks differ substantially: the N1X 40SM runs its LPDDR5X memory at 1067 MHz with 8.5 Gbps effective, while the LX ULTRA runs its GDDR6 memory at 2250 MHz with 18 Gbps effective. The higher memory clock on the LX ULTRA directly contributes to its superior bandwidth of 432.0 GB/s, despite the narrower 192-bit bus.

Shading unit counts favor the LX ULTRA with 6144 units, but the N1X 40SM has more TMUs at 320 versus 192. The ROP count heavily favors the LX ULTRA at 96 versus 40. The N1X 40SM includes 40 RT cores and 160 tensor cores, while the LX ULTRA records null values for both, indicating no such dedicated hardware. The N1X 40SM's FP16 ratio is 1:1 relative to FP32, while the LX ULTRA achieves a 2:1 ratio, explaining its doubled FP16 throughput.

Power and physical characteristics diverge sharply. The Lisuan Tech LX ULTRA records a TDP of 225 W, a dual-slot form factor, and requires a 16-pin power connector with a suggested PSU of 550 W. The NVIDIA N1X 40SM records an unknown TDP, an IGP (integrated graphics processor) slot width, and no power connectors, indicating it draws power directly from the motherboard. The N1X 40SM uses a PCIe 5.0 x16 interface, while the LX ULTRA uses PCIe 4.0 x16. Display outputs also differ: the N1X 40SM provides 1x HDMI, while the LX ULTRA provides 4x DisplayPort 1.4a. The LX ULTRA measures 268 mm in length, 112 mm in height, and 40 mm in width, while the N1X 40SM records no dimensions.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Lisuan Tech LX ULTRA records 24.58 TFLOPS FP32, which is 0.56 TFLOPS higher than the NVIDIA N1X 40SM's 24.02 TFLOPS. The difference is small, approximately 2.3 percent.

Q: Does the NVIDIA N1X 40SM support ray tracing?

A: Yes, the N1X 40SM includes 40 RT cores dedicated to ray tracing. The Lisuan Tech LX ULTRA records no RT cores in the database.

Q: What memory capacity does each GPU offer?

A: The NVIDIA N1X 40SM has 128 GB of LPDDR5X memory, while the Lisuan Tech LX ULTRA has 24 GB of GDDR6 memory.

Q: Which GPU provides higher memory bandwidth?

A: The Lisuan Tech LX ULTRA offers 432.0 GB/s, which is 158.8 GB/s higher than the NVIDIA N1X 40SM's 273.2 GB/s.

Q: What is the power consumption of each GPU?

A: The Lisuan Tech LX ULTRA records a TDP of 225 W. The NVIDIA N1X 40SM records an unknown TDP, and as an IGP, it has no power connectors.

Q: Which GPU supports DirectX 12 Ultimate?

A: The Lisuan Tech LX ULTRA supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The NVIDIA N1X 40SM records N/A for DirectX, OpenGL, and Vulkan APIs.

The Verdict

The recorded data shows two devices with fundamentally different design philosophies. The NVIDIA N1X 40SM is an integrated graphics processor on a 5 nm process, consuming no dedicated power connectors and fitting into an IGP slot width. Its strengths lie in texture throughput at 750.7 GTexel/s, a massive 128 GB memory pool, and dedicated RT cores and tensor cores. The Lisuan Tech LX ULTRA is a dual-slot discrete GPU on a 6 nm process with a 225 W TDP, requiring a 16-pin connector and a 550 W suggested PSU. Its strengths include higher FP32 and FP16 compute, greater memory bandwidth, and more than double the pixel rate.

For compute workloads prioritizing half-precision arithmetic, the Lisuan Tech LX ULTRA's 49.15 TFLOPS FP16 is the clear choice, more than double the N1X 40SM's 24.02 TFLOPS. For memory-bandwidth-intensive tasks, the LX ULTRA again leads with 432.0 GB/s. However, for applications requiring more than 24 GB of memory, the NVIDIA N1X 40SM's 128 GB capacity is unmatched by the LX ULTRA. For rasterization at high pixel rates, the LX ULTRA's 192.0 GPixel/s dominates, while the N1X 40SM excels in texture-bound scenarios with its 750.7 GTexel/s.

Software compatibility favors the Lisuan Tech LX ULTRA, which supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3, while the NVIDIA N1X 40SM records no API support. Users requiring ray tracing or tensor acceleration must choose the NVIDIA N1X 40SM, as the LX ULTRA has no RT cores or tensor cores recorded. The N1X 40SM's PCIe 5.0 x16 interface offers higher bandwidth potential than the LX ULTRA's PCIe 4.0 x16, though the LX ULTRA's superior memory bandwidth may offset this in practice.

The choice between these two GPUs depends on workload requirements. The Lisuan Tech LX ULTRA is suited for high-throughput compute, half-precision processing, and memory-bandwidth-heavy tasks, with a robust API feature set. The NVIDIA N1X 40SM is suited for large memory footprints, texture-intensive operations, and hardware-accelerated ray tracing or tensor workloads, all within an integrated form factor that requires no additional power connectors. The data provides no benchmark scores to favor either device, so the decision rests on these architectural specifications alone.