NVIDIA GeForce RTX 4090 Max-Q vs Lisuan Tech LX 7G100 Comparison

Head-to-Head Benchmarks

The recorded data for both GPUs shows no direct head-to-head benchmark scores in the database. Neither the NVIDIA GeForce RTX 4090 Max-Q nor the Lisuan Tech LX 7G100 has an average benchmark score listed, and the win count for each is zero. Performance must therefore be inferred from the raw specification data available. The most telling difference is in raw compute throughput: the RTX 4090 Max-Q delivers 28.31 TFLOPS of FP32 performance, while the LX 7G100 delivers 24.58 TFLOPS. This places the NVIDIA part approximately 15% ahead in single-precision floating-point work, a meaningful margin for tasks like physics simulation, scientific computing, or any workload heavily reliant on standard shader math.

However, the LX 7G100 counters in half-precision throughput. Its FP16 figure is 49.15 TFLOPS, achieved via a 2:1 rate, whereas the RTX 4090 Max-Q offers 28.31 TFLOPS in FP16, running at a 1:1 ratio. For applications that can exploit FP16, such as certain machine learning inference paths or specific graphics effects, the Lisuan part is roughly 74% ahead. This is a substantial advantage, though it depends entirely on software using FP16 paths rather than falling back to FP32.

Pixel throughput tells a different story. The LX 7G100 reaches 192.0 GPixel/s, while the RTX 4090 Max-Q achieves 163.0 GPixel/s. That is an 18% advantage for the Lisuan product, which can translate to faster fill-rate bound operations like heavy post-processing, multi-sampled anti-aliasing, or high-resolution compositing. Texture rate favors the NVIDIA part: 442.3 GTexel/s versus 384.0 GTexel/s, a 15% lead. This suggests better performance in texture-heavy scenes, common in modern game engines with dense material systems.

Memory bandwidth is another clear split. The RTX 4090 Max-Q has 576.0 GB/s of bandwidth, while the LX 7G100 provides 432.0 GB/s. The NVIDIA part is 33% ahead, which matters for large data streaming, high-resolution textures, and compute kernels that repeatedly access memory. The Lisuan card’s 192-bit bus width and 12 GB capacity contrast with the 256-bit bus and 16 GB on the NVIDIA part, so the bandwidth gap is structural rather than clock-driven.

Neither GPU has recorded benchmark scores, so percentile rankings are identical at 50. The absence of measured results means these comparisons are strictly specification-based projections, not observed outcomes.

Architecture Differences

The two GPUs come from entirely different design philosophies. The RTX 4090 Max-Q is built on NVIDIA’s Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. The chip, labeled AD103, contains 45,900 million transistors on a 379 mm² die. This yields a transistor density of 121.1M per mm². The LX 7G100 uses a 6 nm TSMC process with a chip called 7G106, but the database lists its transistor count, die size, and density as unknown. The 5 nm node gives the NVIDIA part a density advantage, though the Lisuan chip’s actual area and count remain unspecified.

The NVIDIA GPU’s architecture is explicitly a mobile design. It is an IGP slot width with no power connectors and a TDP of 80 W. The LX 7G100 is a dual-slot card requiring 1x 8-pin power and a suggested PSU of 550 W, with a TDP of 225 W. This is a 145 W difference in thermal design power, meaning the Lisuan card needs nearly three times the power envelope. The NVIDIA part’s low power target is possible because of its 5 nm process and mobile-oriented design, while the LX 7G100 appears designed for desktop-like operation despite sharing a PCIe 4.0 x16 interface.

Shader resources differ significantly. The RTX 4090 Max-Q has 9728 shading units, 304 TMUs, and 112 ROPs. It also includes 76 RT cores and 304 tensor cores, giving it dedicated hardware for ray tracing and AI acceleration. The LX 7G100 has 6144 shading units, 192 TMUs, and 96 ROPs, but the database records no RT cores or tensor cores for it. This means the Lisuan part relies on its TrueGPU architecture without specialized ray tracing or tensor hardware, while the NVIDIA part can offload those tasks to dedicated silicon. The FP16 2:1 ratio on the LX 7G100 suggests a compute-oriented design, but without tensor cores its AI acceleration potential is unclear from the data.

API support is nearly identical: both support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The RTX 4090 Max-Q supports Vulkan 1.4, while the LX 7G100 supports Vulkan 1.3. This gives the NVIDIA part a newer Vulkan revision, which can matter for certain modern engines. Memory type is the same, GDDR6 for both, though the NVIDIA part uses a 256-bit bus and the Lisuan uses 192-bit. Effective memory speed is identical at 18 Gbps, so the bandwidth difference comes entirely from bus width.

The release dates show a large gap. The RTX 4090 Max-Q entered production in January 2023, while the LX 7G100 is dated June 2026. The NVIDIA part belongs to the GeForce 40 Mobile generation, with a predecessor in GeForce 30 Mobile and a successor in GeForce 50 Mobile. The Lisuan card has no recorded predecessor or successor in the database.

The Verdict

Based strictly on the recorded specifications, the RTX 4090 Max-Q is the stronger choice for general-purpose graphics and compute workloads that rely on FP32 precision. Its 28.31 TFLOPS FP32 output, 442.3 GTexel/s texture rate, and 576.0 GB/s memory bandwidth give it clear advantages in gaming, traditional rendering, and most scientific compute. The presence of 76 RT cores and 304 tensor cores means it has dedicated hardware for ray tracing and AI features, which the LX 7G100 lacks entirely.

The LX 7G100 wins in three specific areas: FP16 throughput, pixel fill rate, and power envelope. Its 49.15 TFLOPS FP16 performance is the single largest specification advantage in this comparison, and its 192.0 GPixel/s pixel rate exceeds the NVIDIA part by 18%. However, its 225 W TDP and dual-slot design make it a heavier, hotter component, while the RTX 4090 Max-Q operates at 80 W with an IGP form factor. For a mobile or power-constrained system, the NVIDIA part is the only viable option given the Lisuan card’s physical requirements.

The data does not support a universal winner. For a laptop or compact system that needs strong FP32 performance, ray tracing, and high memory bandwidth, the RTX 4090 Max-Q is clearly superior. For a desktop workstation that prioritizes FP16 compute and pixel throughput, and where power draw is not a concern, the LX 7G100 has measurable advantages. The absence of benchmark scores means these are projections, not verified results, so final decisions should await direct measurements.

FAQ

Q: Which GPU has higher FP32 performance?

A: The RTX 4090 Max-Q delivers 28.31 TFLOPS of FP32, while the LX 7G100 provides 24.58 TFLOPS. The NVIDIA part is ahead by roughly 15% in this metric.

Q: Does the LX 7G100 have any compute advantage?

A: Yes, its FP16 throughput is 49.15 TFLOPS, achieved at a 2:1 rate, versus 28.31 TFLOPS for the RTX 4090 Max-Q. That is approximately 74% higher, though it depends on software using FP16 instructions.

Q: Which card has more memory and bandwidth?

A: The RTX 4090 Max-Q has 16 GB of GDDR6 on a 256-bit bus, yielding 576.0 GB/s. The LX 7G100 has 12 GB on a 192-bit bus, yielding 432.0 GB/s. The NVIDIA part has 33% more bandwidth.

Q: Can the LX 7G100 do ray tracing?

A: The database lists no RT cores for the LX 7G100. The RTX 4090 Max-Q has 76 RT cores. So based on the recorded data, the Lisuan card has no dedicated ray tracing hardware.

Q: What are the power requirements?

A: The RTX 4090 Max-Q has a TDP of 80 W and uses no power connectors. The LX 7G100 has a TDP of 225 W, requires 1x 8-pin power, and needs a 550 W suggested PSU.

Q: Are the two GPUs from the same generation?

A: No. The RTX 4090 Max-Q is from the GeForce 40 Mobile generation, released in January 2023. The LX 7G100 is from the 7G100 generation, released in June 2026. They also use different architectures: Ada Lovelace versus TrueGPU.

Where Each One Wins

The RTX 4090 Max-Q wins in raw FP32 compute, texture processing, memory bandwidth, and memory capacity. Its 28.31 TFLOPS FP32 and 442.3 GTexel/s texture rate make it the better choice for conventional game rendering, where shader complexity and texture sampling dominate. The 576.0 GB/s bandwidth and 16 GB capacity support large assets and high resolutions. The 76 RT cores and 304 tensor cores give it dedicated acceleration for ray-traced effects and DLSS-style AI enhancement, features the LX 7G100 cannot match. For any workload that uses standard single-precision math, the NVIDIA part is the faster option.

The LX 7G100 wins in FP16 compute and pixel fill rate. Its 49.15 TFLOPS FP16 output is the standout figure, making it attractive for workloads that can operate in half precision, such as certain neural network inference or image processing pipelines. The 192.0 GPixel/s pixel rate exceeds the NVIDIA part by 18%, which helps in resolution scaling, post-processing chains, or any effect that writes many pixels per frame. The 225 W TDP also suggests it can sustain higher clocks under load, though the database does not list its base or boost clocks. For a desktop system that does not need ray tracing and can tolerate a dual-slot card, the Lisuan part offers a specific compute profile that the NVIDIA mobile chip does not.

Specification Differences

| Field | NVIDIA GeForce RTX 4090 Max-Q | Lisuan Tech LX 7G100 |

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

| Architecture | Ada Lovelace | TrueGPU |

| Process Node | 5 nm | 6 nm |

| Shading Units | 9728 | 6144 |

| TMUs | 304 | 192 |

| ROPs | 112 | 96 |

| RT Cores | 76 | null |

| Tensor Cores | 304 | null |

| FP32 | 28.31 TFLOPS | 24.58 TFLOPS |

| FP16 | 28.31 TFLOPS (1:1) | 49.15 TFLOPS (2:1) |

| Pixel Rate | 163.0 GPixel/s | 192.0 GPixel/s |

| Texture Rate | 442.3 GTexel/s | 384.0 GTexel/s |

| Memory Size | 16 GB | 12 GB |

| Memory Bus Width | 256 bit | 192 bit |

| Memory Bandwidth | 576.0 GB/s | 432.0 GB/s |

| TDP | 80 W | 225 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 1x 8-pin |

| Suggested PSU | null | 550 W |

| Vulkan Version | 1.4 | 1.3 |

| Display Outputs | Portable Device Dependent | 4x DisplayPort 1.4a |

| Dimensions | null | 294 mm 11.6 inches, 120 mm 4.7 inches, 49 mm 1.9 inches |

| Release Date | 2023-01-02 | 2026-06-17 |

| Predecessor | GeForce 30 Mobile | null |

| Successor | GeForce 50 Mobile | null |