NVIDIA N1 16SM vs Lisuan Tech LX ULTRA Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results between the NVIDIA N1 16SM and the Lisuan Tech LX ULTRA. Both entries carry an average benchmark score of 0 and a percentile ranking of 50 against all GPUs in the database. The winsA and winsB counters are both set to 0, indicating that neither product has secured a single comparative victory in any recorded test. This absence of measured performance data means that any direct numerical comparison between the two would be speculative.

However, the specification sheets reveal substantial differences in raw compute capacity. The Lisuan Tech LX ULTRA delivers 24.58 TFLOPS of FP32 throughput, which is approximately 2.56 times the 9.609 TFLOPS offered by the NVIDIA N1 16SM. In FP16 workloads, the LX ULTRA expands its lead further with 49.15 TFLOPS, while the N1 16SM maintains a 1:1 ratio at 9.609 TFLOPS. The LX ULTRA's FP16 advantage is exactly 5.11 times the NVIDIA part's figure.

Pixel throughput shows a similar pattern. The LX ULTRA processes 192.0 GPixel/s, while the N1 16SM manages 56.30 GPixel/s, a 3.41 times difference. Texture fill rates are closer but still favor the LX ULTRA: 384.0 GTexel/s versus 300.3 GTexel/s, a 1.28 times margin.

Memory bandwidth inverts the compute hierarchy. The N1 16SM uses a 256-bit LPDDR5X interface running at 1067 MHz (8.5 Gbps effective) to reach 273.2 GB/s. The LX ULTRA relies on a 192-bit GDDR6 bus at 2250 MHz (18 Gbps effective), achieving 432.0 GB/s. The LX ULTRA holds a 1.58 times bandwidth advantage despite the narrower bus.

Where Each One Wins

The Lisuan Tech LX ULTRA dominates in every raw computational metric recorded in the database. Its 6144 shading units compare to 2048 on the NVIDIA N1 16SM, a 3.00 times unit count. TMUs stand at 192 versus 128, and ROPs at 96 versus 24, the latter representing a 4.00 times difference. The LX ULTRA also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, whereas the N1 16SM lists N/A for all three APIs, suggesting the NVIDIA part lacks conventional graphics API support.

The NVIDIA N1 16SM counters with several structural advantages. Its 128 GB of LPDDR5X memory dwarfs the LX ULTRA's 24 GB GDDR6 allocation, a 5.33 times capacity difference. The N1 16SM integrates 16 dedicated RT cores and 64 tensor cores, while the LX ULTRA lists null values for both, indicating no dedicated ray tracing or tensor hardware. The NVIDIA chip also uses a PCIe 5.0 x16 interface, while the LX ULTRA operates on PCIe 4.0 x16.

Physical form factors diverge sharply. The N1 16SM is an IGP (integrated graphics processor) with no power connectors and no slot width beyond the chip itself. The LX ULTRA is a dual-slot discrete card measuring 268 mm in length, 112 mm in height, and 40 mm in width, requiring a single 16-pin power connector and a 550 W suggested PSU. The LX ULTRA's 225 W TDP is documented, while the N1 16SM's TDP is unknown.

Architecture Differences

The NVIDIA N1 16SM uses the GB20B chip built on a 5 nm process at TSMC, employing the Blackwell 2.0 architecture from the Blackwell IGP (N1x) generation. The die size is 382 mm², with transistor count listed as unknown. The LX ULTRA uses the 7G105 chip on a 6 nm process, also at TSMC, with the TrueGPU architecture from the 7G100 generation. Its die size and transistor count are not recorded.

Clock behavior differs fundamentally. The N1 16SM has a base clock of 741 MHz and a boost clock of 2346 MHz, a 3.17 times boost ratio. The LX ULTRA lists no base or boost clocks, only a memory clock of 2250 MHz (18 Gbps effective). The N1 16SM's memory runs at 1067 MHz (8.5 Gbps effective).

Memory architectures are distinct. The N1 16SM uses 128 GB of LPDDR5X across a 256-bit bus. The LX ULTRA uses 24 GB of GDDR6 across a 192-bit bus. Despite the wider bus and larger capacity on the NVIDIA side, the LX ULTRA's higher clocked memory produces 432.0 GB/s against 273.2 GB/s.

Compute ratios also separate the two. The N1 16SM delivers FP16 at a 1:1 ratio to FP32, meaning both are 9.609 TFLOPS. The LX ULTRA runs FP16 at a 2:1 ratio, producing 49.15 TFLOPS from 24.58 TFLOPS of FP32. This indicates the LX ULTRA dedicates hardware to half-precision throughput, while the N1 16SM treats both formats equally.

The N1 16SM integrates 16 RT cores and 64 tensor cores, features entirely absent from the LX ULTRA's specification sheet. The LX ULTRA compensates with 6144 shading units, 192 TMUs, and 96 ROPs, versus 2048 shading units, 128 TMUs, and 24 ROPs on the N1 16SM. The ROP count difference is particularly stark: 96 versus 24.

Display outputs differ as well. The N1 16SM provides a single HDMI port. The LX ULTRA offers four DisplayPort 1.4a outputs. The N1 16SM launches with no recorded MSRP, and the LX ULTRA also has no launch MSRP in the database.

Release dates place the two products six weeks apart. The LX ULTRA launched on 2026-03-16, while the N1 16SM launched on 2026-05-31. Both are marked as Active in production status.

The Verdict

The data paints a clear picture for compute-bound workloads. The Lisuan Tech LX ULTRA delivers 24.58 TFLOPS of FP32 and 49.15 TFLOPS of FP16, figures that are 2.56 times and 5.11 times the NVIDIA N1 16SM respectively. Its 432.0 GB/s memory bandwidth, 192.0 GPixel/s pixel rate, and 384.0 GTexel/s texture rate all exceed the NVIDIA part's corresponding figures. The LX ULTRA also supports the full modern graphics API stack, including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3. Any workload that depends on raw shading throughput, pixel fill, or texture processing will favor the LX ULTRA.

The NVIDIA N1 16SM retains advantages in memory capacity and specialized hardware. Its 128 GB of LPDDR5X is 5.33 times the LX ULTRA's 24 GB, which matters for large datasets or framebuffers that exceed 24 GB. The 16 RT cores and 64 tensor cores provide dedicated acceleration paths that the LX ULTRA lacks entirely. The N1 16SM also uses a faster PCIe 5.0 x16 interface and operates as an IGP, requiring no power connectors and producing no documented TDP. For systems where power consumption and physical footprint are constraints, the N1 16SM's integrated design offers a distinct deployment advantage.

The LX ULTRA requires a 225 W TDP, a 550 W suggested PSU, a 16-pin power connector, and a dual-slot 268 mm card. The N1 16SM slots directly into a motherboard as an IGP with a single HDMI output. The choice hinges on whether the workload prioritizes compute throughput or memory capacity and integrated form factor.

Benchmark results in the database are empty for both products, so the percentile rankings of 50 are equal placeholders. No measured performance data exists to validate either specification sheet under real workloads. The recorded numbers are purely theoretical maxima from the specification data.

The LX ULTRA suits users who need maximum FP32 or FP16 throughput, high memory bandwidth, and conventional graphics API support. The N1 16SM suits users who need large memory capacity, dedicated RT and tensor cores, and a zero-connector integrated package.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Lisuan Tech LX ULTRA delivers 24.58 TFLOPS, which is 2.56 times the NVIDIA N1 16SM's 9.609 TFLOPS.

Q: How do the memory capacities compare?

A: The NVIDIA N1 16SM has 128 GB of LPDDR5X, which is 5.33 times the LX ULTRA's 24 GB of GDDR6.

Q: Does either GPU support ray tracing?

A: The NVIDIA N1 16SM includes 16 RT cores. The Lisuan Tech LX ULTRA lists no RT core count, with null values for that field.

Q: What is the memory bandwidth difference?

A: The LX ULTRA reaches 432.0 GB/s, which is 1.58 times the N1 16SM's 273.2 GB/s.

Q: Which GPU has more shading units?

A: The Lisuan Tech LX ULTRA has 6144 shading units, which is 3.00 times the NVIDIA N1 16SM's 2048.

Q: What are the power requirements for each?

A: The LX ULTRA has a 225 W TDP, requires a 550 W suggested PSU, and uses one 16-pin power connector. The N1 16SM has no recorded TDP and uses no power connectors.