NVIDIA H100 CNX vs Lisuan Tech LX PRO Comparison

The Verdict

The database comparison between the NVIDIA H100 CNX and the Lisuan Tech LX PRO presents two fundamentally different computing devices. The NVIDIA H100 CNX is a server-focused accelerator built on the Hopper architecture, while the Lisuan Tech LX PRO is a graphics card with a TrueGPU architecture. Neither device has recorded benchmark scores in the database, and both sit at the 50th percentile among all GPUs, so the analysis here relies entirely on their recorded technical specifications.

For compute-heavy server workloads, particularly those involving FP16 tensor operations, the NVIDIA H100 CNX is the clear choice. Its FP16 output of 215.4 TFLOPS (4:1) is roughly 4.4 times the LX PRO's FP16 figure of 49.15 TFLOPS (2:1). The H100 CNX also offers 80 GB of HBM2e memory with 2.04 TB/s of bandwidth, which dwarfs the LX PRO's 24 GB GDDR6 configuration at 432.0 GB/s. These figures indicate the H100 CNX is designed for large-scale AI training and inference, where memory capacity and bandwidth are critical.

For graphics-oriented tasks, the Lisuan Tech LX PRO is the more practical option. It is the only one of the two with display outputs, offering 4x DisplayPort 1.4a, and it supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The H100 CNX has no display outputs and no recorded API support. The LX PRO also delivers a higher pixel rate of 192.0 GPixel/s compared to the H100 CNX's 44.28 GPixel/s, which indicates stronger rasterization throughput per clock.

The power requirements reflect these different roles. The H100 CNX carries a 350 W TDP and requires a suggested 750 W power supply, while the LX PRO has a 225 W TDP and a suggested 550 W power supply. The H100 CNX also uses an 8-pin EPS power connector, whereas the LX PRO uses a single 16-pin connector. The LX PRO is therefore the more accessible option for systems with standard power budgets, while the H100 CNX demands a more robust power infrastructure.

Architecture Differences

The NVIDIA H100 CNX uses the GH100 chip on TSMC's 5 nm process, with 80,000 million transistors packed into an 814 mm² die. The transistor density is 98.3 million per square millimeter. The Lisuan Tech LX PRO uses the 7G105 chip on TSMC's 6 nm process, but its transistor count and die size are not recorded in the database. The process node difference, 5 nm versus 6 nm, gives the H100 CNX a manufacturing advantage in terms of density, though the LX PRO's smaller process still represents a modern fabrication node.

The H100 CNX is built on the Hopper architecture, which is part of the Server Hopper (Hxx) generation. The LX PRO uses the TrueGPU architecture from the 7G100 generation. Neither architecture shares a lineage with the other. The H100 CNX's predecessor is listed as Server Ada, with Server Blackwell as its successor, while the LX PRO has no recorded predecessor or successor.

The H100 CNX includes 456 tensor cores, which are dedicated hardware for matrix operations. The LX PRO has no tensor cores recorded. This absence is a defining architectural difference: the H100 CNX is explicitly designed for accelerated compute, while the LX PRO appears focused on conventional graphics and general-purpose compute through its 6144 shading units.

The memory subsystems are also architecturally distinct. The H100 CNX uses HBM2e with a 5120-bit bus, a very wide interface that enables its 2.04 TB/s bandwidth. The LX PRO uses GDDR6 with a 192-bit bus, yielding 432.0 GB/s. HBM2e is a stacked memory technology typically found in server accelerators, while GDDR6 is the standard for consumer and workstation graphics cards. The H100 CNX also runs its memory at 1593 MHz (3.2 Gbps effective), whereas the LX PRO runs at 2250 MHz (18 Gbps effective). The GDDR6 clock is much higher, but the HBM2e bus width more than compensates.

The H100 CNX has no display outputs, while the LX PRO provides 4x DisplayPort 1.4a. This difference in connectivity reflects their intended deployment environments: the H100 CNX is a compute accelerator meant to run headless in servers, while the LX PRO can drive multiple displays directly.

Head-to-Head Benchmarks

The database does not include any recorded head-to-head benchmark results for these two devices. Both have an average benchmark score of 0 and no entries in their benchmark arrays. The wins counters for both devices are also 0. As a result, the comparison must be drawn from the specification-level figures that are available.

The most significant performance indicator is FP16 throughput. The H100 CNX delivers 215.4 TFLOPS (4:1), while the LX PRO delivers 49.15 TFLOPS (2:1). The H100 CNX is 4.38 times faster in this metric. FP16 is the dominant precision for AI inference and training, so this gap is substantial. The FP32 figures show a smaller but still notable difference: the H100 CNX produces 53.84 TFLOPS versus the LX PRO's 24.58 TFLOPS, a 2.19 times advantage.

Texture and pixel rates tell a different story. The H100 CNX has a texture rate of 841.3 GTexel/s, which is 2.19 times the LX PRO's 384.0 GTexel/s, consistent with the FP32 ratio. However, the LX PRO's pixel rate of 192.0 GPixel/s is 4.34 times higher than the H100 CNX's 44.28 GPixel/s. This suggests the LX PRO is optimized for fill-rate-bound graphics workloads, such as high-resolution rendering, while the H100 CNX prioritizes compute density.

Memory bandwidth is another decisive metric. The H100 CNX's 2.04 TB/s is 4.72 times the LX PRO's 432.0 GB/s. For workloads that stream large datasets, such as large language model inference or scientific simulations, this bandwidth advantage is critical. The LX PRO's 24 GB capacity is also far smaller than the H100 CNX's 80 GB, limiting the size of datasets that can reside in local memory.

The LX PRO counters with a higher pixel rate and a more complete API stack. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, while the H100 CNX has no recorded API support. For any workload that requires graphics output, the LX PRO is the only functional choice between the two.

Specification Differences

The two devices differ across nearly every recorded specification.

The H100 CNX has a base clock of 690 MHz and a boost clock of 1845 MHz. The LX PRO has no recorded base or boost clocks. The H100 CNX's memory clock is 1593 MHz (3.2 Gbps effective), while the LX PRO's memory clock is 2250 MHz (18 Gbps effective).

Memory configuration: the H100 CNX has 80 GB of HBM2e on a 5120-bit bus with 2.04 TB/s bandwidth. The LX PRO has 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth.

Compute units: the H100 CNX has 14592 shading units, 456 TMUs, 24 ROPs, and 456 tensor cores. The LX PRO has 6144 shading units, 192 TMUs, 96 ROPs, and no tensor cores. The H100 CNX has 2.37 times the shading units and 2.38 times the TMUs, while the LX PRO has 4 times the ROPs.

The H100 CNX's process node is 5 nm, and the LX PRO's is 6 nm. Both are fabricated by TSMC. The H100 CNX's transistor count is 80,000 million, while the LX PRO's is unknown. The H100 CNX's die size is 814 mm², while the LX PRO's is unknown.

The H100 CNX has a 350 W TDP, while the LX PRO has a 225 W TDP. The H100 CNX uses an 8-pin EPS power connector and suggests a 750 W power supply. The LX PRO uses a single 16-pin connector and suggests a 550 W power supply.

The H100 CNX uses PCIe 5.0 x16, while the LX PRO uses PCIe 4.0 x16. The H100 CNX has no display outputs, while the LX PRO has 4x DisplayPort 1.4a.

Dimensions: the H100 CNX is 267 mm (10.5 inches) long and 111 mm (4.4 inches) high. The LX PRO is 248 mm (9.8 inches) long, 118 mm (4.6 inches) high, and 48 mm (1.9 inches) wide. Both are dual-slot cards.

Release dates: the H100 CNX was released on 2023-03-20, and the LX PRO on 2026-03-16. The H100 CNX is listed as Active in production status, as is the LX PRO.

FAQ

Q: Which device has more FP32 compute throughput?

A: The NVIDIA H100 CNX delivers 53.84 TFLOPS in FP32, which is 2.19 times the Lisuan Tech LX PRO's 24.58 TFLOPS.

Q: Which device has higher FP16 throughput?

A: The H100 CNX delivers 215.4 TFLOPS (4:1) in FP16, compared to the LX PRO's 49.15 TFLOPS (2:1). The H100 CNX is 4.38 times faster.

Q: Which device has more memory and higher bandwidth?

A: The H100 CNX has 80 GB of HBM2e with 2.04 TB/s bandwidth on a 5120-bit bus. The LX PRO has 24 GB of GDDR6 with 432.0 GB/s bandwidth on a 192-bit bus. The H100 CNX offers 4.72 times the bandwidth.

Q: Which device supports display outputs?

A: Only the Lisuan Tech LX PRO has display outputs, offering 4x DisplayPort 1.4a. The NVIDIA H100 CNX has no display outputs.

Q: Which device has a higher pixel rate?

A: The LX PRO has a pixel rate of 192.0 GPixel/s, which is 4.34 times the H100 CNX's 44.28 GPixel/s.

Q: What are the power requirements for each device?

A: The H100 CNX has a 350 W TDP and suggests a 750 W power supply. The LX PRO has a 225 W TDP and suggests a 550 W power supply. The H100 CNX uses an 8-pin EPS connector, while the LX PRO uses a single 16-pin connector.