NVIDIA H800 SXM5 vs Lisuan Tech LX PRO Comparison

Head-to-Head Benchmarks

The database shows no direct benchmark comparisons between the NVIDIA H800 SXM5 and the Lisuan Tech LX PRO. Both cards sit at the 50th percentile among all GPUs, with average benchmark scores of 0 in the recorded data. This means the head-to-head results are derived entirely from their theoretical specification sheets rather than executed workloads.

The NVIDIA H800 SXM5 delivers 59.30 TFLOPS of FP32 compute, which is 2.41 times the 24.58 TFLOPS produced by the Lisuan Tech LX PRO. In FP16 operations, the gap widens further: the H800 reaches 237.2 TFLOPS (4:1) versus 49.15 TFLOPS (2:1) for the LX PRO, a 4.83x advantage. These numbers indicate that for raw compute throughput, the H800 dominates every measured workload type.

Memory bandwidth tells a similar story. The H800 SXM5 provides 3.36 TB/s of bandwidth across an 80 GB HBM3 pool, while the LX PRO offers 432.0 GB/s from 24 GB of GDDR6. That is a 7.78x bandwidth difference. The H800's memory bus spans 5120 bits, compared to 192 bits on the LX PRO, which explains the massive throughput gap.

However, the LX PRO wins decisively in pixel processing. Its pixel rate reaches 192.0 GPixel/s, while the H800 SXM5 manages only 42.12 GPixel/s. This is a 4.56x advantage for the Lisuan card, driven by its 96 ROPs versus the H800's 24 ROPs. The texture rate also favors the LX PRO less dramatically: 384.0 GTexel/s against 926.6 GTexel/s, meaning the H800 still leads by 2.41x in texture fill.

Clock speeds differ substantially. The H800 SXM5 has a base clock of 1095 MHz and a boost clock of 1755 MHz. The LX PRO lists no base or boost clocks in the database, only a memory clock of 2250 MHz (18 Gbps effective). The H800's memory runs at 1313 MHz (5.3 Gbps effective). Without boost data for the LX PRO, the compute comparison relies on the recorded TFLOPS figures, which already incorporate clock and core counts.

Architecture Differences

The NVIDIA H800 SXM5 uses the GH100 chip built on TSMC's 5 nm process, part of the Hopper architecture. It packs 80,000 million transistors onto an 814 mm² die, yielding a transistor density of 98.3M per mm². The Lisuan Tech LX PRO employs the 7G105 chip on TSMC's 6 nm process, belonging to the TrueGPU architecture in the 7G100 generation. The LX PRO's transistor count and die size are listed as unknown in the database.

Core configurations diverge sharply. The H800 SXM5 contains 16,896 shading units, 528 TMUs, 24 ROPs, and 528 tensor cores. The LX PRO has 6,144 shading units, 192 TMUs, and 96 ROPs, with no tensor cores recorded. The H800's shading unit count is 2.75x higher, and its TMU count is 2.75x higher as well. The LX PRO's ROP count is 4x higher, which explains its pixel rate advantage.

Memory architecture differs in type and configuration. The H800 SXM5 uses 80 GB of HBM3 with a 5120-bit bus, while the LX PRO uses 24 GB of GDDR6 with a 192-bit bus. The H800's memory bandwidth of 3.36 TB/s far exceeds the LX PRO's 432.0 GB/s. The H800 also lists no display outputs, consistent with its server-oriented SXM Module form factor. The LX PRO provides 4x DisplayPort 1.4a outputs, supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The H800 has no API support recorded in the database.

Power characteristics also differ. The H800 SXM5 has a TDP of 700 W and requires an 8-pin EPS power connector with a suggested PSU of 1100 W. The LX PRO has a TDP of 225 W, uses a single 16-pin connector, and suggests a 550 W PSU. The H800 is a dual-slot SXM module, while the LX PRO is a dual-slot card measuring 248 mm in length, 118 mm in height, and 48 mm in width.

The release dates place the H800 SXM5 in March 2023, while the LX PRO arrived in March 2026. Both are listed as active production. The H800 lists Server Ada as its predecessor and Server Blackwell as its successor, while the LX PRO has no recorded predecessor or successor.

Where Each One Wins

The NVIDIA H800 SXM5 wins in every compute-intensive category. Its FP32 throughput of 59.30 TFLOPS versus 24.58 TFLOPS makes it the clear choice for general scientific computing, simulation, and any workload that relies on dense matrix operations. The FP16 advantage is even more pronounced at 237.2 TFLOPS versus 49.15 TFLOPS, favoring machine learning training and inference tasks that use mixed precision. The 528 tensor cores on the H800 provide dedicated hardware for neural network operations, while the LX PRO has none.

Memory capacity and bandwidth strongly favor the H800. With 80 GB of HBM3 and 3.36 TB/s bandwidth, it can hold larger models and datasets in memory, reducing the need for data movement. The LX PRO's 24 GB GDDR6 pool at 432.0 GB/s is sufficient for smaller workloads but will bottleneck on larger batch sizes or higher-resolution inputs.

The Lisuan Tech LX PRO wins in graphics-oriented tasks. Its 192.0 GPixel/s pixel rate, driven by 96 ROPs, outperforms the H800's 42.12 GPixel/s by a wide margin. This makes it better suited for rasterization-heavy rendering, display output, and any workload that requires high fill rates. The LX PRO also supports display outputs, making it usable for direct video output, while the H800 has no outputs at all.

Texture processing shows a split. The H800's 926.6 GTexel/s exceeds the LX PRO's 384.0 GTexel/s, so the NVIDIA card handles texture-heavy workloads better. The LX PRO's lower texture rate is offset by its higher pixel rate, which suggests a balance toward final pixel output rather than intermediate texture sampling.

Power efficiency favors the LX PRO in the recorded data. At 225 W TDP versus 700 W, the LX PRO delivers 0.109 TFLOPS per watt in FP32, while the H800 delivers 0.085 TFLOPS per watt. The LX PRO also requires a lower suggested PSU (550 W versus 1100 W), which may simplify system integration in smaller chassis.

The Verdict

The data indicates that the NVIDIA H800 SXM5 is the superior choice for compute-heavy workloads, particularly AI training, scientific simulation, and high-performance computing. Its 2.41x FP32 advantage, 4.83x FP16 advantage, and 7.78x memory bandwidth advantage leave no doubt about its dominance in those areas. The 80 GB HBM3 memory capacity is substantially larger than the LX PRO's 24 GB, enabling larger datasets and models without spilling to system memory.

The Lisuan Tech LX PRO is the better option for graphics rendering and display-centric applications. Its 4.56x higher pixel rate and available display outputs make it a practical choice for workstation graphics, visualization, or any task that requires driving monitors directly. The lower TDP of 225 W also makes it easier to integrate into systems with modest power budgets.

For a server deployment focused on parallel compute, the H800 SXM5 is the only sensible pick from these two. The lack of display outputs on the H800 is irrelevant in a headless server environment. For a desktop or workstation with rendering needs, the LX PRO's pixel throughput and API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.3) give it a clear functional edge.

The release date difference matters for procurement decisions. The H800 SXM5 launched in March 2023, while the LX PRO arrived in March 2026. The newer card benefits from three additional years of design refinement, but the H800's Hopper architecture still holds a massive compute lead in the recorded specifications.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA H800 SXM5 delivers 59.30 TFLOPS of FP32 performance, which is 2.41 times the 24.58 TFLOPS offered by the Lisuan Tech LX PRO.

Q: How do the memory bandwidth figures compare?

A: The H800 SXM5 provides 3.36 TB/s of bandwidth from 80 GB of HBM3 on a 5120-bit bus. The LX PRO offers 432.0 GB/s from 24 GB of GDDR6 on a 192-bit bus. The H800 leads by 7.78x.

Q: Which card supports display output?

A: Only the Lisuan Tech LX PRO supports display output, with 4x DisplayPort 1.4a connections. The NVIDIA H800 SXM5 has no display outputs, consistent with its server module form factor.

Q: What is the difference in pixel fill rate?

A: The LX PRO achieves 192.0 GPixel/s, which is 4.56x higher than the H800 SXM5's 42.12 GPixel/s. This is due to the LX PRO's 96 ROPs versus the H800's 24 ROPs.

Q: Which GPU has tensor cores for AI workloads?

A: The NVIDIA H800 SXM5 includes 528 tensor cores and reaches 237.2 TFLOPS in FP16 (4:1) mode. The Lisuan Tech LX PRO has no tensor cores and reaches 49.15 TFLOPS in FP16 (2:1) mode.

Q: What are the power requirements for each card?

A: The H800 SXM5 has a TDP of 700 W with an 8-pin EPS connector and a suggested PSU of 1100 W. The LX PRO has a TDP of 225 W with a single 16-pin connector and a suggested PSU of 550 W.

Specification Differences

| Specification | NVIDIA H800 SXM5 | Lisuan Tech LX PRO |

|---------------|------------------|---------------------|

| Chip | GH100 | 7G105 |

| Architecture | Hopper | TrueGPU |

| Generation | Server Hopper (Hxx) | 7G100 |

| Process Node | 5 nm | 6 nm |

| Foundry | TSMC | TSMC |

| Transistors | 80,000 million | unknown |

| Die Size | 814 mm² | unknown |

| Transistor Density | 98.3M / mm² | null |

| Base Clock | 1095 MHz | null |

| Boost Clock | 1755 MHz | null |

| Memory Clock | 1313 MHz, 5.3 Gbps effective | 2250 MHz, 18 Gbps effective |

| Memory Size | 80 GB | 24 GB |

| Memory Type | HBM3 | GDDR6 |

| Memory Bus Width | 5120 bit | 192 bit |

| Memory Bandwidth | 3.36 TB/s | 432.0 GB/s |

| Shading Units | 16,896 | 6,144 |

| TMUs | 528 | 192 |

| ROPs | 24 | 96 |

| Tensor Cores | 528 | null |

| Pixel Rate | 42.12 GPixel/s | 192.0 GPixel/s |

| Texture Rate | 926.6 GTexel/s | 384.0 GTexel/s |

| FP32 Performance | 59.30 TFLOPS | 24.58 TFLOPS |

| FP16 Performance | 237.2 TFLOPS (4:1) | 49.15 TFLOPS (2:1) |

| TDP | 700 W | 225 W |

| Slot Width | SXM Module | Dual-slot |

| Power Connectors | 8-pin EPS | 1x 16-pin |

| Suggested PSU | 1100 W | 550 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | No outputs | 4x DisplayPort 1.4a |

| DirectX | null | 12 Ultimate (12_2) |

| OpenGL | null | 4.6 |

| Vulkan | null | 1.3 |

| Dimensions (L×H×W) | null | 248 mm × 118 mm × 48 mm |

| Release Date | 2023-03-20 | 2026-03-16 |

| Production Status | Active | Active |

The specification table confirms the H800 SXM5 as a compute-oriented server accelerator with massive memory bandwidth and tensor core support, while the LX PRO is a graphics-capable card with display outputs, higher pixel throughput, and lower power draw. The H800's lack of API support data and display outputs reinforces its headless server positioning, whereas the LX PRO's full API stack and display connectors target workstation use.