NVIDIA H100 CNX vs Lisuan Tech LX 7G100 Comparison

Head-to-Head Benchmarks

The recorded data for the NVIDIA H100 CNX and the Lisuan Tech LX 7G100 contains no benchmark entries in the database. Neither GPU has an average benchmark score, and the head-to-head benchmark table is empty. The percentile versus all GPUs is 50 for both parts, placing them at the median of the recorded database. Without measured workloads, direct performance comparisons cannot be quantified.

The absence of benchmark data does not imply parity. The specification sheets reveal two fundamentally different designs. The NVIDIA H100 CNX is a compute-oriented accelerator with 14,592 shading units, 456 texture mapping units, and 24 raster output pipelines. The Lisuan Tech LX 7G100 uses 6,144 shading units, 192 TMUs, and 96 ROPs. The H100 CNX delivers 53.84 TFLOPS of FP32 throughput versus 24.58 TFLOPS for the LX 7G100. That is a 29.26 TFLOPS difference, or roughly 2.19 times the FP32 rate.

In FP16 compute, the gap widens. The H100 CNX reaches 215.4 TFLOPS with a 4:1 ratio, while the LX 7G100 produces 49.15 TFLOPS with a 2:1 ratio. The H100 CNX leads by 166.25 TFLOPS, approximately 4.38 times the LX 7G100's figure. This indicates the NVIDIA part is designed for heavy mixed-precision workloads, while the Lisuan part's lower ratio suggests a more conventional compute layout.

Memory capacity and bandwidth also diverge sharply. The H100 CNX carries 80 GB of HBM2e across a 5,120-bit bus, yielding 2.04 TB/s of bandwidth. The LX 7G100 has 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s. The H100 CNX provides 68 GB more memory and 1.608 TB/s more bandwidth, a factor of approximately 4.72 times. This makes the H100 CNX suitable for large models or datasets that exceed the LX 7G100's capacity.

The pixel rate reverses the trend. The LX 7G100 achieves 192.0 GPixel/s, while the H100 CNX manages 44.28 GPixel/s. The Lisuan part is 4.34 times faster in pixel throughput. Similarly, the texture rate favors the H100 CNX at 841.3 GTexel/s versus 384.0 GTexel/s, a 2.19 times advantage. The LX 7G100's higher ROP count (96 versus 24) explains its pixel rate lead, while the H100 CNX's larger TMU count drives its texture advantage.

Clock speeds differ as well. The H100 CNX has a base clock of 690 MHz and a boost clock of 1,845 MHz. The LX 7G100 lists no base or boost clocks in the database. Memory clocks are 1,593 MHz (3.2 Gbps effective) for the H100 CNX and 2,250 MHz (18 Gbps effective) for the LX 7G100. The LX 7G100's memory clock is higher, but its narrower bus limits overall bandwidth.

The Verdict

The data shows two distinct product classes. The NVIDIA H100 CNX is a server accelerator with no display outputs, 350 W TDP, and a dual-slot form factor. It uses an 8-pin EPS power connector and requires a 750 W suggested PSU. The Lisuan Tech LX 7G100 includes four DisplayPort 1.4a outputs, a 225 W TDP, a single 8-pin connector, and a 550 W suggested PSU. The LX 7G100 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, while the H100 CNX lists no API support.

For compute-heavy tasks, the H100 CNX is the clear choice. Its FP32 and FP16 rates, memory capacity, and bandwidth exceed the LX 7G100 by large margins. The 80 GB HBM2e pool can hold far larger working sets than the 12 GB GDDR6. The 2.04 TB/s bandwidth allows rapid data movement, which matters for training or inference workloads.

For graphics-oriented use, the LX 7G100 is the only option with display outputs. Its 192.0 GPixel/s pixel rate is far higher, and it supports modern graphics APIs. The H100 CNX has no display outputs, making it unsuitable for direct rendering to a monitor. The LX 7G100's 12 GB GDDR6 is modest but workable for many graphics applications.

The power requirements favor the LX 7G100. At 225 W, it consumes 125 W less than the H100 CNX's 350 W. The LX 7G100 also fits in systems with a 550 W PSU, while the H100 CNX needs 750 W. The LX 7G100 is longer at 294 mm versus 267 mm, and taller at 120 mm versus 111 mm. The LX 7G100 has a width of 49 mm, while the H100 CNX lists no width. Both are dual-slot cards.

FAQ

Q: Which GPU has higher FP32 performance?

A: The NVIDIA H100 CNX delivers 53.84 TFLOPS, while the Lisuan Tech LX 7G100 produces 24.58 TFLOPS. The H100 CNX is approximately 2.19 times faster in FP32.

Q: How do the memory subsystems compare?

A: The H100 CNX uses 80 GB of HBM2e on a 5,120-bit bus with 2.04 TB/s bandwidth. The LX 7G100 uses 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The H100 CNX has 68 GB more capacity and 1.608 TB/s more bandwidth.

Q: Which GPU supports display outputs?

A: Only the Lisuan Tech LX 7G100 has display outputs, specifically four DisplayPort 1.4a connections. The NVIDIA H100 CNX lists no display outputs.

Q: What are the power requirements?

A: The H100 CNX has a 350 W TDP and a suggested PSU of 750 W, using an 8-pin EPS connector. The LX 7G100 has a 225 W TDP and a suggested PSU of 550 W, using a single 8-pin connector.

Q: Which GPU has higher pixel fill rate?

A: The LX 7G100 achieves 192.0 GPixel/s, while the H100 CNX reaches 44.28 GPixel/s. The LX 7G100 is about 4.34 times faster in pixel rate.

Q: What API support does each GPU offer?

A: The LX 7G100 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The H100 CNX lists no DirectX, OpenGL, or Vulkan support in the database.

Specification Differences

The two GPUs differ in nearly every specification field.

• Process node: H100 CNX uses 5 nm, LX 7G100 uses 6 nm. Both are fabricated by TSMC.
• Transistors: H100 CNX has 80,000 million transistors, LX 7G100 is unknown.
• Die size: H100 CNX is 814 mm², LX 7G100 is unknown.
• Clocks: H100 CNX has base 690 MHz and boost 1,845 MHz. LX 7G100 has no base or boost clocks listed. Memory clock is 1,593 MHz (3.2 Gbps effective) for H100 CNX and 2,250 MHz (18 Gbps effective) for LX 7G100.
• Memory: H100 CNX has 80 GB HBM2e, 5,120-bit bus, 2.04 TB/s. LX 7G100 has 12 GB GDDR6, 192-bit bus, 432.0 GB/s.
• Shading units: 14,592 versus 6,144.
• TMUs: 456 versus 192.
• ROPs: 24 versus 96.
• Tensor cores: H100 CNX has 456, LX 7G100 has none listed.
• Pixel rate: 44.28 GPixel/s versus 192.0 GPixel/s.
• Texture rate: 841.3 GTexel/s versus 384.0 GTexel/s.
• FP32: 53.84 TFLOPS versus 24.58 TFLOPS.
• FP16: 215.4 TFLOPS (4:1) versus 49.15 TFLOPS (2:1).
• TDP: 350 W versus 225 W.
• Power connectors: 8-pin EPS versus 1x 8-pin.
• Suggested PSU: 750 W versus 550 W.
• Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x16.
• Display outputs: None versus 4x DisplayPort 1.4a.
• Dimensions: H100 CNX is 267 mm long and 111 mm high. LX 7G100 is 294 mm long, 120 mm high, and 49 mm wide.

Architecture Differences

The NVIDIA H100 CNX uses the GH100 chip on the Hopper architecture, belonging to the Server Hopper (Hxx) generation. It is built on a 5 nm TSMC process with 80,000 million transistors on an 814 mm² die, giving a transistor density of 98.3M per mm². The LX 7G100 uses the 7G106 chip on the TrueGPU architecture, in the 7G100 generation, fabricated on a 6 nm TSMC process. Its transistor count and die size are unknown.

The H100 CNX includes 456 tensor cores, which the LX 7G100 lacks entirely. This aligns with the H100 CNX's compute focus. The H100 CNX also has a larger memory bus (5,120-bit versus 192-bit) and uses HBM2e, a stacked memory type, while the LX 7G100 uses GDDR6. The H100 CNX's FP16 ratio of 4:1 indicates it trades FP16 throughput for higher FP32 output relative to its FP16 peak, whereas the LX 7G100's 2:1 ratio is more typical of graphics-oriented GPUs.

The H100 CNX's predecessor is listed as Server Ada and its successor as Server Blackwell, indicating a clear product lineage. The LX 7G100 has no predecessor or successor listed. The H100 CNX was released on 2023-03-20, while the LX 7G100 has a release date of 2026-06-17, over three years later. Both are marked as Active in production status.

The H100 CNX has no API support for DirectX, OpenGL, or Vulkan, confirming its non-graphics role. The LX 7G100 supports all three, with DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The H100 CNX uses a PCIe 5.0 x16 interface, while the LX 7G100 uses PCIe 4.0 x16. The H100 CNX uses an 8-pin EPS power connector, typical of server platforms, while the LX 7G100 uses a standard 1x 8-pin.

Where Each One Wins

The NVIDIA H100 CNX wins in compute throughput, memory capacity, and bandwidth. Its FP32 rate of 53.84 TFLOPS and FP16 rate of 215.4 TFLOPS are the highest in this comparison. The 80 GB HBM2e pool with 2.04 TB/s bandwidth supports large-scale data processing. The 456 tensor cores provide dedicated hardware for matrix operations. The 814 mm² die with 80,000 million transistors indicates a high transistor budget for complex compute pipelines. Its texture rate of 841.3 GTexel/s is 2.19 times the LX 7G100's, which helps in texture-heavy compute workloads. The PCIe 5.0 x16 interface doubles the bus bandwidth of PCIe 4.0 x16, reducing data transfer bottlenecks.

The Lisuan Tech LX 7G100 wins in pixel throughput, display functionality, and power efficiency. Its 192.0 GPixel/s pixel rate is 4.34 times the H100 CNX's, driven by its 96 ROPs. The four DisplayPort 1.4a outputs enable direct display connection, which the H100 CNX cannot do. Its 225 W TDP is 125 W lower, and its 550 W suggested PSU is 200 W lower, making it easier to integrate into conventional systems. The 12 GB GDDR6 memory, while smaller, uses a higher memory clock of 2,250 MHz (18 Gbps effective) and supports modern graphics APIs. The LX 7G100's 6 nm process node is newer than the H100 CNX's 5 nm, though both come from TSMC.

The H100 CNX is suited for server-side compute workloads such as training or inference where display output is unnecessary and memory capacity is critical. The LX 7G100 is suited for graphics rendering, visualization, or workstation use where display outputs and pixel throughput matter more than raw FP32 or FP16 compute. The power envelope of the LX 7G100 allows deployment in smaller systems, while the H100 CNX requires a more robust power supply. The data does not include any benchmark scores, so these conclusions rest entirely on the specification differences recorded in the database.