NVIDIA GeForce RTX 5090 SE vs Lisuan Tech LX PRO Comparison

# NVIDIA GeForce RTX 5090 SE vs Lisuan Tech LX PRO

The NVIDIA GeForce RTX 5090 SE and Lisuan Tech LX PRO occupy very different positions in the GPU landscape. The RTX 5090 SE is a high-end Blackwell 2.0 design from NVIDIA, built on a 5 nm TSMC process with 92,200 million transistors and a 750 mm² die. The LX PRO is a 6 nm TSMC part from Lisuan Tech with unknown transistor count and die size, targeting a more moderate performance envelope. Based on the recorded specifications, the RTX 5090 SE delivers roughly 2.7 times the FP32 throughput of the LX PRO (66.94 TFLOPS vs 24.58 TFLOPS), while the LX PRO counters with a lower 225 W TDP and a smaller 248 mm physical footprint. Neither part has recorded benchmark scores or nearest rivals in the database, so the analysis below relies entirely on specification-level comparisons.

Where Each One Wins

The RTX 5090 SE wins decisively in raw compute and memory bandwidth scenarios. Its FP32 throughput of 66.94 TFLOPS is 2.7 times that of the LX PRO's 24.58 TFLOPS, which directly translates to faster shader-bound workloads such as high-resolution rasterization, physics simulations, and general compute tasks. The 5090 SE also holds a massive memory bandwidth advantage: 1.34 TB/s versus 432.0 GB/s, a 3.1 times difference. This makes the 5090 SE the clear choice for bandwidth-hungry applications like 4K texture streaming, large dataset processing, and ray-traced scenes with heavy BVH traversal. The 5090 SE's 384-bit memory bus versus the LX PRO's 192-bit bus reinforces this gap.

The LX PRO wins in efficiency-oriented and compact scenarios. Its 225 W TDP is less than half of the 5090 SE's 500 W, and it requires only a 550 W suggested PSU versus 900 W for the 5090 SE. The LX PRO is also shorter at 248 mm versus 267 mm, though it is taller (118 mm vs 111 mm) and thicker (48 mm vs 40 mm). For systems where power delivery and thermal headroom are constrained, the LX PRO's lower draw is an advantage. Its FP16 throughput of 49.15 TFLOPS at a 2:1 ratio is also notable: it exceeds its FP32 rate, meaning the LX PRO has dedicated half-precision throughput that could benefit AI inference workloads, though the 5090 SE's FP16 matches its FP32 at 66.94 TFLOPS with a 1:1 ratio.

Architecture Differences

The two GPUs share TSMC as their foundry but diverge sharply in process, architecture, and feature set. The 5090 SE uses a 5 nm process with the Blackwell 2.0 architecture and the GB202 chip, while the LX PRO uses a 6 nm process with the TrueGPU architecture and the 7G105 chip. The 5090 SE has 14080 shading units, 440 TMUs, and 160 ROPs, compared to the LX PRO's 6144 shading units, 192 TMUs, and 96 ROPs. The 5090 SE also includes 110 RT cores and 440 tensor cores, while the LX PRO lists no RT or tensor core counts, indicating a lack of dedicated hardware for ray tracing and tensor operations.

Memory architecture differs fundamentally. The 5090 SE uses 24 GB of GDDR7 on a 384-bit bus with 1.34 TB/s bandwidth, while the LX PRO uses 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s. The 5090 SE's memory clock is 1750 MHz (28 Gbps effective), versus the LX PRO's 2250 MHz (18 Gbps effective). The 5090 SE supports PCIe 5.0 x16, while the LX PRO is limited to PCIe 4.0 x16, halving the available interface bandwidth for data transfers.

Display output capabilities differ as well. The 5090 SE provides 1x HDMI 2.1b and 3x DisplayPort 2.1b, while the LX PRO provides 4x DisplayPort 1.4a, lacking HDMI and using an older DisplayPort standard. API support is nearly identical on DirectX (12 Ultimate 12_2) and OpenGL (4.6), but the 5090 SE supports Vulkan 1.4 versus the LX PRO's Vulkan 1.3.

Head-to-Head Benchmarks

The database contains no recorded benchmark scores or head-to-head results for either GPU, so performance comparisons must be derived from the specification sheet. The most significant wins for the 5090 SE appear in compute throughput and memory bandwidth.

FP32 performance: the 5090 SE delivers 66.94 TFLOPS versus 24.58 TFLOPS for the LX PRO, a 2.72 times advantage. This translates to proportionally faster performance in shader-bound games and compute workloads, as shading units (14080 vs 6144), TMUs (440 vs 192), and ROPs (160 vs 96) all scale in the same direction.

Memory bandwidth: the 5090 SE's 1.34 TB/s is 3.1 times the LX PRO's 432.0 GB/s. With identical 24 GB capacities, the 5090 SE can feed its larger shader array far more effectively, avoiding stalls in texture-heavy scenes. The pixel rate difference is 380.3 GPixel/s versus 192.0 GPixel/s, a 1.98 times advantage, and the texture rate is 1,045.9 GTexel/s versus 384.0 GTexel/s, a 2.72 times advantage.

The LX PRO wins in power efficiency. Its 225 W TDP is 45% of the 5090 SE's 500 W, yet it delivers 36.7% of the FP32 throughput (24.58 / 66.94). This means the LX PRO achieves roughly 0.109 TFLOPS per watt versus the 5090 SE's 0.134 TFLOPS per watt, so the 5090 SE is actually slightly more efficient in raw FP32 per watt, but the LX PRO's absolute power draw is far lower for systems with strict power limits.

FP16 performance shows a different pattern. The LX PRO's FP16 of 49.15 TFLOPS at a 2:1 ratio exceeds its FP32 by exactly 2 times, while the 5090 SE's FP16 of 66.94 TFLOPS at a 1:1 ratio equals its FP32. In FP16 workloads, the 5090 SE still leads by 1.36 times, but the LX PRO's 2:1 ratio suggests it may have a more efficient half-precision path relative to its FP32 capability.

FAQ

Q: Which GPU has more memory?

A: Both have 24 GB, but the 5090 SE uses GDDR7 on a 384-bit bus with 1.34 TB/s bandwidth, while the LX PRO uses GDDR6 on a 192-bit bus with 432.0 GB/s.

Q: Does the LX PRO support ray tracing?

A: The LX PRO lists no RT core count in its specifications, while the 5090 SE has 110 RT cores. The LX PRO's architecture is called TrueGPU, and its lack of listed RT cores suggests no dedicated ray tracing hardware.

Q: What is the power requirement difference?

A: The 5090 SE has a 500 W TDP and a suggested PSU of 900 W, while the LX PRO has a 225 W TDP and a suggested PSU of 550 W.

Q: Which GPU has a faster memory clock?

A: The LX PRO has a higher memory clock at 2250 MHz (18 Gbps effective), but the 5090 SE's 1750 MHz (28 Gbps effective) results in much higher bandwidth due to the wider 384-bit bus.

Q: Are the APIs different?

A: Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The 5090 SE supports Vulkan 1.4, while the LX PRO supports Vulkan 1.3.

Q: What display outputs does each provide?

A: The 5090 SE has 1x HDMI 2.1b and 3x DisplayPort 2.1b. The LX PRO has 4x DisplayPort 1.4a and no HDMI port.

Specification Differences

| Specification | NVIDIA GeForce RTX 5090 SE | Lisuan Tech LX PRO |

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

| Architecture | Blackwell 2.0 | TrueGPU |

| Chip | GB202 | 7G105 |

| Process Node | 5 nm | 6 nm |

| Transistors | 92,200 million | unknown |

| Die Size | 750 mm² | unknown |

| Transistor Density | 122.9M / mm² | null |

| Base Clock | 1740 MHz | null |

| Boost Clock | 2377 MHz | null |

| Memory Clock | 1750 MHz 28 Gbps effective | 2250 MHz 18 Gbps effective |

| Memory Type | GDDR7 | GDDR6 |

| Memory Bus Width | 384 bit | 192 bit |

| Memory Bandwidth | 1.34 TB/s | 432.0 GB/s |

| Shading Units | 14080 | 6144 |

| TMUs | 440 | 192 |

| ROPs | 160 | 96 |

| RT Cores | 110 | null |

| Tensor Cores | 440 | null |

| Pixel Rate | 380.3 GPixel/s | 192.0 GPixel/s |

| Texture Rate | 1,045.9 GTexel/s | 384.0 GTexel/s |

| FP32 | 66.94 TFLOPS | 24.58 TFLOPS |

| FP16 | 66.94 TFLOPS (1:1) | 49.15 TFLOPS (2:1) |

| TDP | 500 W | 225 W |

| Suggested PSU | 900 W | 550 W |

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

| Display Outputs | 1x HDMI 2.1b, 3x DisplayPort 2.1b | 4x DisplayPort 1.4a |

| Vulkan | 1.4 | 1.3 |

| Dimensions | 267 mm x 111 mm x 40 mm | 248 mm x 118 mm x 48 mm |

| Release Date | 2025-12-31 | 2026-03-16 |

| Launch MSRP | 1,499 USD | null |

The Verdict

The data points to the RTX 5090 SE as the dominant performer for compute-heavy and bandwidth-intensive tasks. Its 66.94 TFLOPS FP32, 1.34 TB/s memory bandwidth, and 110 RT cores provide a 2.7 to 3.1 times advantage over the LX PRO in the core metrics that drive high-end gaming and professional workloads. The 5090 SE also offers newer standards: PCIe 5.0 x16, DisplayPort 2.1b, Vulkan 1.4, and GDDR7 memory. The launch MSRP of 1,499 USD reflects this higher capability tier.

The LX PRO serves a different use case. Its 225 W TDP and 550 W suggested PSU make it suitable for systems with limited power delivery, and its 248 mm length fits shorter chassis. The FP16 throughput of 49.15 TFLOPS at a 2:1 ratio provides half-precision capability that, while lower than the 5090 SE, is proportionally stronger relative to its FP32. The LX PRO's 4x DisplayPort 1.4a outputs may suit multi-monitor setups without HDMI.

For users prioritizing maximum performance, ray tracing, and memory bandwidth, the 5090 SE is the data-backed choice. For users prioritizing lower power draw, compact length, and sufficient 24 GB capacity at a lower TDP envelope, the LX PRO presents a viable alternative. The absence of benchmark scores and nearest rivals in the database means these conclusions derive strictly from specification comparisons.