NVIDIA H800 PCIe 80 GB vs Lisuan Tech LX MAX Comparison

Head-to-Head Benchmarks

The recorded data for the NVIDIA H800 PCIe 80 GB and the Lisuan Tech LX MAX shows no overlapping benchmark results, so a direct comparison of measured application performance cannot be established. Instead, the comparison must rely on the computed specifications and the derived performance ceilings each component offers.

The NVIDIA H800 PCIe 80 GB delivers a FP32 throughput of 51.22 TFLOPS, while the Lisuan Tech LX MAX reaches 24.58 TFLOPS. That places the H800 at roughly 2.1 times the single-precision compute rate of the LX MAX. In FP16 workloads, the H800 produces 204.9 TFLOPS using a 4:1 ratio, while the LX MAX produces 49.15 TFLOPS with a 2:1 ratio. The H800’s FP16 result is more than four times higher, and the ratio difference means the H800 can maintain that advantage across tensor-heavy operations that rely on reduced precision.

The texture rate follows a similar pattern. The H800 outputs 800.3 GTexel/s, compared to 384.0 GTexel/s for the LX MAX. The pixel rate, however, is a notable exception: the LX MAX reaches 192.0 GPixel/s, while the H800 reaches only 42.12 GPixel/s. This is a direct consequence of the ROP count, where the LX MAX has 96 ROPs versus 24 on the H800. The pixel output gap is roughly 4.6 times in favor of the LX MAX, which indicates that for rasterization-bound tasks that depend on fill rate, the LX MAX holds a clear edge.

Memory bandwidth is another area where the two parts diverge sharply. The H800 uses 80 GB of HBM2e across a 5120-bit bus, producing 2.04 TB/s of bandwidth. The LX MAX uses 12 GB of GDDR6 across a 192-bit bus, producing 432.0 GB/s. The H800’s bandwidth is about 4.7 times higher, which directly affects large data movement, model training, and workloads that saturate memory throughput. The H800 also supports a larger memory pool, 80 GB versus 12 GB, which allows larger working sets to reside on the GPU without spilling to system memory.

The shading unit count also favors the H800. It carries 14592 shading units, while the LX MAX has 6144. The TMU count is 456 on the H800 versus 192 on the LX MAX. Tensor cores are present only on the H800, with 456 tensor cores listed; the LX MAX lists no tensor cores. That absence is significant for any AI or machine learning inference and training task, where tensor operations dominate.

Both parts use the same power connector type, a single 16-pin. The H800 has a TDP of 350 W and suggests a 750 W power supply, while the LX MAX has a TDP of 225 W and suggests a 550 W power supply. The H800 draws more power and requires more headroom, but the compute and memory bandwidth advantages scale with that additional power draw.

The bus interface differs as well. The H800 uses PCIe 5.0 x16, while the LX MAX uses PCIe 4.0 x16. That gives the H800 a higher potential transfer rate to the host system, which can matter for data ingestion and multi-GPU communication in server environments.

The production status for both is listed as Active. The H800 was released on 2023-03-20, while the LX MAX has a release date of 2026-03-16. The LX MAX is newer by roughly three years.

Neither part has any recorded benchmark scores or nearest rivals in the database, and both sit at the 50th percentile among all GPUs. That percentile is based on the broader database population, not on a direct head-to-head measurement. With no benchmark scores available, the performance relationship must be inferred from the specification-level differences above.

The Verdict

The data indicates two different design goals. The NVIDIA H800 PCIe 80 GB is positioned for compute-heavy, memory-intensive server workloads. Its FP32 and FP16 throughput, its 2.04 TB/s memory bandwidth, and its 80 GB memory capacity all point to large-scale parallel computation, AI model training, and scientific simulation. The presence of 456 tensor cores reinforces that direction, as those units are specifically designed for matrix math used in neural networks. The H800 also uses a 5 nm process from TSMC, with 80,000 million transistors on a 814 mm² die, giving a transistor density of 98.3M per mm².

The Lisuan Tech LX MAX is a different class of device. It has 12 GB of GDDR6 memory, a 192-bit bus, and 432.0 GB/s of bandwidth. Its FP32 output of 24.58 TFLOPS is lower than the H800, but its pixel rate is far higher at 192.0 GPixel/s. The LX MAX also includes display outputs, four DisplayPort 1.4a connectors, whereas the H800 lists no outputs. The LX MAX supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, while the H800 lists no API support data. That combination suggests the LX MAX is aimed at rendering, graphics workstations, and direct display tasks, not at headless compute servers.

For a user who needs maximum FP32 and FP16 compute, the H800 is the clear pick. Its FP32 output is more than double that of the LX MAX, and its FP16 output is more than quadruple. The memory bandwidth advantage is also decisive for datasets that exceed 12 GB or that require sustained high-bandwidth access. The H800 is also the only part here with tensor cores, so any AI workload that uses tensor operations will not find an equivalent on the LX MAX.

For a user who needs high pixel fill rate, the LX MAX is the better choice. Its 192.0 GPixel/s is far above the H800’s 42.12 GPixel/s, and its 96 ROPs provide a substantial advantage in fragment processing and display-bound rendering. The LX MAX also has a lower TDP at 225 W versus 350 W, and a lower suggested power supply at 550 W versus 750 W, which makes it easier to integrate into systems where power budget is a concern. The inclusion of display outputs and graphics API support means the LX MAX can function as a standalone graphics solution, while the H800 cannot drive a display at all.

The selection depends entirely on the workload. The H800 is for compute, the LX MAX is for graphics and rasterization. Neither part is a substitute for the other given the recorded data.

Architecture Differences

The NVIDIA H800 PCIe 80 GB uses the GH100 chip, built on the Hopper architecture, and belongs to the Server Hopper generation. The manufacturing process is 5 nm at TSMC. The transistor count is 80,000 million on a die size of 814 mm², yielding a density of 98.3M transistors per mm². The predecessor of the H800 is listed as Server Ada, and its successor is Server Blackwell.

The Lisuan Tech LX MAX uses the 7G106 chip, built on the TrueGPU architecture, and belongs to the 7G100 generation. The manufacturing process is 6 nm at TSMC. Transistor count and die size are listed as unknown, so no density figure can be computed. The LX MAX has no listed predecessor or successor.

The memory subsystems reflect different architectural priorities. The H800 uses HBM2e with a 5120-bit bus and 2.04 TB/s bandwidth. The LX MAX uses GDDR6 with a 192-bit bus and 432.0 GB/s bandwidth. HBM2e is designed for high bandwidth and high capacity, while GDDR6 is optimized for cost and integration ease. The H800 also has 456 tensor cores, while the LX MAX has none listed. That architectural difference is fundamental: the H800 is built to accelerate tensor operations, while the LX MAX is not.

The H800 has 14592 shading units, 456 TMUs, and 24 ROPs. The LX MAX has 6144 shading units, 192 TMUs, and 96 ROPs. The H800’s larger shading unit count supports its high FP32 and FP16 throughput, while the LX MAX’s higher ROP count directly supports its higher pixel rate. The texture rate of the H800 is 800.3 GTexel/s versus 384.0 GTexel/s for the LX MAX, matching the TMU ratio.

The clock behavior also differs. The H800 lists a base clock of 1095 MHz and a boost clock of 1755 MHz. The LX MAX lists no base or boost clocks. Memory clocks differ as well: the H800 runs at 1593 MHz with 3.2 Gbps effective, while the LX MAX runs at 2250 MHz with 18 Gbps effective. Despite the higher memory clock on the LX MAX, the H800’s wider bus produces far more total bandwidth.

The LX MAX supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The H800 lists no API support data, which aligns with its headless server positioning. The LX MAX also has four DisplayPort 1.4a outputs, while the H800 has no outputs. These are not just peripheral differences; they define the intended use cases.

Specification Differences

The two parts differ in nearly every measured specification. The process node is 5 nm for the H800 versus 6 nm for the LX MAX. The H800 uses 80,000 million transistors, while the LX MAX has an unknown transistor count. The die size is 814 mm² for the H800, unknown for the LX MAX. The H800 has a transistor density of 98.3M per mm², while the LX MAX has no density figure.

Memory size is 80 GB for the H800 versus 12 GB for the LX MAX. Memory type is HBM2e on the H800 and GDDR6 on the LX MAX. Bus width is 5120 bit versus 192 bit. Bandwidth is 2.04 TB/s versus 432.0 GB/s. The H800 has 14592 shading units, 456 TMUs, 24 ROPs, and 456 tensor cores. The LX MAX has 6144 shading units, 192 TMUs, 96 ROPs, and no tensor cores.

Pixel rate is 42.12 GPixel/s for the H800 and 192.0 GPixel/s for the LX MAX. Texture rate is 800.3 GTexel/s versus 384.0 GTexel/s. FP32 is 51.22 TFLOPS versus 24.58 TFLOPS. FP16 is 204.9 TFLOPS (4:1) versus 49.15 TFLOPS (2:1). TDP is 350 W versus 225 W. Suggested PSU is 750 W versus 550 W. Bus interface is PCIe 5.0 x16 versus PCIe 4.0 x16.

The H800 has no display outputs, while the LX MAX has 4x DisplayPort 1.4a. The H800 lists no API support, while the LX MAX supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. Dimensions differ: the H800 is 268 mm long and 111 mm tall, while the LX MAX is 248 mm long, 118 mm tall, and 48 mm wide. Both are dual-slot and both use a single 16-pin power connector.

Release dates differ: the H800 was released on 2023-03-20, and the LX MAX on 2026-03-16. Production status for both is Active. Neither has a launch MSRP recorded in the database. Both have no benchmark scores, no nearest rivals, and both sit at the 50th percentile among all GPUs.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA H800 PCIe 80 GB delivers 51.22 TFLOPS, while the Lisuan Tech LX MAX delivers 24.58 TFLOPS. The H800 is more than twice as fast in FP32.

Q: Which GPU has higher memory bandwidth?

A: The H800 has 2.04 TB/s of bandwidth using HBM2e on a 5120-bit bus. The LX MAX has 432.0 GB/s using GDDR6 on a 192-bit bus. The H800’s bandwidth is about 4.7 times higher.

Q: Does the Lisuan Tech LX MAX support display output?

A: Yes, the LX MAX has 4x DisplayPort 1.4a outputs. The H800 has no display outputs, making it unsuitable for direct display tasks.

Q: Which GPU has more ROPs and higher pixel rate?

A: The LX MAX has 96 ROPs and a pixel rate of 192.0 GPixel/s. The H800 has 24 ROPs and a pixel rate of 42.12 GPixel/s. The LX MAX is significantly faster in fill-rate-bound rendering.

Q: Does the H800 have tensor cores?

A: Yes, the H800 has 456 tensor cores. The LX MAX lists no tensor cores, so it lacks dedicated hardware for tensor operations.

Q: What is the power consumption difference?

A: The H800 has a TDP of 350 W and suggests a 750 W power supply. The LX MAX has a TDP of 225 W and suggests a 550 W power supply. The LX MAX requires less power and less PSU headroom.