NVIDIA N1X 48SM vs Lisuan Tech LX ULTRA Comparison

The NVIDIA N1X 48SM and the Lisuan Tech LX ULTRA represent two fundamentally different approaches to GPU design, one embedded as an IGP and the other a traditional dual-slot add-in card. The recorded data shows both devices occupy the 50th percentile among all GPUs in the database, yet their architectural blueprints and performance characteristics diverge sharply. The N1X is a Blackwell 2.0 part fabricated on a 5 nm process, while the LX ULTRA uses the TrueGPU architecture on a 6 nm node. These differences in memory type, clock strategy, and feature support define their distinct roles.

Where Each One Wins

The NVIDIA N1X 48SM wins in raw compute throughput and texture processing. Its FP32 output reaches 28.83 TFLOPS, which is 17.3% higher than the LX ULTRA’s 24.58 TFLOPS. The texture rate of 900.9 GTexel/s is more than double the 384.0 GTexel/s recorded for the Lisuan part. This indicates the N1X is built for workloads that stress shader math and texture fetch operations, such as compute-heavy rendering pipelines or scientific visualization tasks.

The Lisuan Tech LX ULTRA wins in memory bandwidth and pixel throughput. Its 432.0 GB/s of bandwidth is 58.2% higher than the N1X’s 273.2 GB/s. The pixel rate of 192.0 GPixel/s exceeds the N1X’s 112.6 GPixel/s by roughly 70.5%. These figures point to an advantage in scenarios that depend on rapid framebuffer writes and large data transfers, like high-resolution rasterization or memory-intensive post-processing effects.

The LX ULTRA also wins in terms of software ecosystem compatibility. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, whereas the N1X lists N/A for all three APIs. This means the LX ULTRA can run modern game titles and graphics applications directly, while the N1X would require alternative interfaces or specialized drivers. The LX ULTRA’s four DisplayPort 1.4a outputs provide multi-monitor flexibility, compared to the N1X’s single HDMI connection.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA N1X 48SM records 28.83 TFLOPS in FP32, while the Lisuan Tech LX ULTRA records 24.58 TFLOPS. The N1X is approximately 17.3% faster in this metric.

Q: How does memory bandwidth compare between the two?

A: The LX ULTRA uses 24 GB of GDDR6 memory on a 192-bit bus, delivering 432.0 GB/s. The N1X uses 128 GB of LPDDR5X on a 256-bit bus, delivering 273.2 GB/s. The LX ULTRA holds a 58.2% bandwidth advantage.

Q: What are the physical form factor differences?

A: The N1X is an IGP with no slot width, no power connectors, and no dimensions listed. The LX ULTRA is a dual-slot card measuring 268 mm in length, 112 mm in height, and 40 mm in width, using a single 16-pin power connector with a suggested 550 W PSU.

Q: Do both GPUs support the same graphics APIs?

A: No. The LX ULTRA supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The N1X records N/A for DirectX, OpenGL, and Vulkan, indicating no native support for these standard APIs in the database.

Q: Which GPU has more texture mapping units?

A: The N1X has 384 TMUs, exactly double the 192 TMUs found on the LX ULTRA. This contributes to the N1X’s higher texture rate of 900.9 GTexel/s versus 384.0 GTexel/s.

Q: What is the memory clock difference?

A: The LX ULTRA lists its memory clock at 2250 MHz with 18 Gbps effective. The N1X lists 1067 MHz with 8.5 Gbps effective. The LX ULTRA’s memory clock is more than twice as fast, though the N1X compensates with a wider 256-bit bus.

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark entries for these two GPUs, so the comparison rests on the specification-derived rates. The widest gap in favor of the N1X appears in texture throughput. At 900.9 GTexel/s, the N1X delivers 516.9 GTexel/s more than the LX ULTRA’s 384.0 GTexel/s, a 134.6% difference. This stems from the N1X having 384 TMUs versus 192 on the LX ULTRA, combined with a boost clock of 2346 MHz against the LX ULTRA’s unlisted boost clock.

The N1X also leads in FP32 compute by 4.25 TFLOPS, which is a 17.3% margin. Both GPUs share the same shading unit count of 6144, so the N1X’s higher clock speed drives its compute advantage. The FP16 comparison shows a different story: the N1X records 28.83 TFLOPS at a 1:1 ratio, while the LX ULTRA records 49.15 TFLOPS at a 2:1 ratio. The LX ULTRA is 70.5% faster in FP16, indicating a design that doubles throughput for half-precision operations.

The LX ULTRA dominates in memory bandwidth with 432.0 GB/s against 273.2 GB/s, a 58.2% margin. It also leads in pixel rate with 192.0 GPixel/s versus 112.6 GPixel/s, a 70.5% advantage. The LX ULTRA has 96 ROPs, double the N1X’s 48 ROPs, which explains its higher fill rate. However, the N1X has 48 RT cores and 192 tensor cores, while the LX ULTRA lists null values for both, suggesting the N1X carries dedicated hardware for ray tracing and tensor operations that the LX ULTRA lacks.

Specification Differences

The two GPUs differ across nearly every measured field. The N1X uses a 5 nm process, while the LX ULTRA uses 6 nm. Both are fabricated by TSMC. The N1X has a die size of 382 mm², whereas the LX ULTRA’s die size is unknown. The N1X is an IGP with no power connectors and no TDP listed; the LX ULTRA is a dual-slot card with a 225 W TDP and a 16-pin connector.

Memory configurations diverge significantly. The N1X has 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The LX ULTRA has 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The N1X’s memory clock is 1067 MHz with 8.5 Gbps effective, while the LX ULTRA’s is 2250 MHz with 18 Gbps effective.

The N1X has 384 TMUs and 48 ROPs, while the LX ULTRA has 192 TMUs and 96 ROPs. Both have 6144 shading units. The N1X includes 48 RT cores and 192 tensor cores; the LX ULTRA records null for both. The N1X’s base clock is 741 MHz with a boost of 2346 MHz, while the LX ULTRA lists no base or boost clocks. The bus interface differs: PCIe 5.0 x16 for the N1X versus PCIe 4.0 x16 for the LX ULTRA.

Display outputs are another split: the N1X has one HDMI port, while the LX ULTRA has four DisplayPort 1.4a outputs. The N1X supports no standard graphics APIs, while the LX ULTRA supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3. Dimensions exist only for the LX ULTRA: 268 mm by 112 mm by 40 mm. The N1X has no listed dimensions, consistent with its IGP form factor.

Architecture Differences

The NVIDIA N1X 48SM is built on the Blackwell 2.0 architecture, part of the Blackwell IGP generation. Its chip is designated GB20B. The architecture integrates 48 RT cores and 192 tensor cores, providing dedicated paths for ray tracing and AI acceleration. The FP16 performance matches FP32 at 28.83 TFLOPS, indicating a 1:1 ratio with no special half-precision acceleration. The N1X is produced on a 5 nm TSMC node with a 382 mm² die.

The Lisuan Tech LX ULTRA uses the TrueGPU architecture from the 7G100 generation, with chip 7G105. This architecture has no RT cores or tensor cores listed, meaning the database records no dedicated hardware for those functions. Instead, the LX ULTRA achieves FP16 performance of 49.15 TFLOPS at a 2:1 ratio, effectively doubling throughput for half-precision workloads relative to FP32. The LX ULTRA is built on a 6 nm TSMC process, one node behind the N1X.

The N1X’s 192 tensor cores suggest an orientation toward machine learning tasks, while the LX ULTRA’s lack of such units indicates a more conventional GPU design. The N1X is an integrated part, drawing power through the system rather than dedicated connectors, while the LX ULTRA is a standalone card with a 225 W TDP. The N1X uses LPDDR5X memory, typically found in unified memory systems, whereas the LX ULTRA uses GDDR6, a discrete memory standard.

The Verdict

The data presents a clear split based on workload type. The NVIDIA N1X 48SM suits users who prioritize raw FP32 compute, texture-heavy operations, and dedicated tensor or ray tracing hardware. Its 28.83 TFLOPS FP32 output and 900.9 GTexel/s texture rate are the strongest recorded figures in this comparison. The 192 tensor cores provide a hardware path for AI workloads, a feature entirely absent from the LX ULTRA’s specifications. The 128 GB memory capacity is also notable for large datasets, despite lower bandwidth.

The Lisuan Tech LX ULTRA fits scenarios requiring high memory bandwidth, fast pixel fill, and standard graphics API support. Its 432.0 GB/s bandwidth and 192.0 GPixel/s pixel rate exceed the N1X by substantial margins. The 24 GB GDDR6 memory is smaller but operates at a higher effective speed of 18 Gbps. The LX ULTRA’s support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3 makes it directly usable for current game titles, while the N1X has no API support recorded in the database.

The choice depends on whether the task demands compute density or memory throughput. The N1X’s advantage in FP32 and texture rate suggests a compute-first design, while the LX ULTRA’s bandwidth and pixel rate indicate a graphics-first orientation. The N1X’s IGP form factor offers integration flexibility, while the LX ULTRA requires a slot and a 550 W PSU. The LX ULTRA’s dual-slot size and 268 mm length are the only physical dimensions recorded, confirming a traditional card layout. The N1X’s 48 RT cores and 192 tensor cores give it a feature set the LX ULTRA cannot match, but the LX ULTRA counters with faster memory and broader API compatibility.