NVIDIA GeForce RTX 4090 Mobile vs Lisuan Tech LX PRO Comparison

FAQ

Q: What is the average benchmark score for the NVIDIA GeForce RTX 4090 Mobile?

A: The RTX 4090 Mobile records an average benchmark score of 43,667 across all tests, placing it in the 84th percentile of all GPUs in the database.

Q: Does the Lisuan Tech LX PRO have any recorded benchmark scores?

A: No. The LX PRO has an empty benchmarks array, an average benchmark score of 0, and sits in the 50th percentile. The database contains no measured performance data for this GPU.

Q: How do the two GPUs compare in memory capacity and bus width?

A: The RTX 4090 Mobile uses 16 GB of GDDR6 on a 256-bit bus, yielding 576.0 GB/s of bandwidth. The LX PRO uses 24 GB of GDDR6 on a 192-bit bus, yielding 432.0 GB/s of bandwidth.

Q: What are the FP32 compute figures for each GPU?

A: The RTX 4090 Mobile delivers 32.98 TFLOPS of FP32 compute, while the LX PRO delivers 24.58 TFLOPS. In FP16, the RTX 4090 Mobile also delivers 32.98 TFLOPS at a 1:1 ratio, whereas the LX PRO reaches 49.15 TFLOPS at a 2:1 ratio.

Q: What is the power draw difference between the two?

A: The RTX 4090 Mobile has a TDP of 120 W and uses no power connectors (it is an integrated GPU package). The LX PRO has a TDP of 225 W, requires a single 16-pin power connector, and lists a suggested PSU of 550 W.

Q: Which GPU has a higher pixel rate?

A: The LX PRO has a pixel rate of 192.0 GPixel/s, slightly ahead of the RTX 4090 Mobile's 189.8 GPixel/s. The RTX 4090 Mobile leads in texture rate, however, at 515.3 GTexel/s versus 384.0 GTexel/s.

Architecture Differences

The RTX 4090 Mobile is built on NVIDIA's Ada Lovelace architecture, using the AD103 chip fabricated on a 5 nm process at TSMC. The die measures 379 mm² and holds 45,900 million transistors, producing a transistor density of 121.1M per mm². It belongs to the GeForce 40 Mobile generation and is the active predecessor to the GeForce 50 Mobile line.

The LX PRO uses a completely different design. Its chip is labeled 7G105, and it runs on an architecture called TrueGPU from the 7G100 generation. It is manufactured on a 6 nm TSMC process, but the database records no transistor count, die size, or transistor density for it. The manufacturer is listed as unknown.

The RTX 4090 Mobile includes 76 dedicated ray tracing cores and 304 tensor cores, both of which are absent from the LX PRO's specification sheet. The LX PRO has no recorded RT core or tensor core counts. This is a structural difference: the RTX 4090 Mobile carries hardware acceleration for ray tracing and AI workloads, while the LX PRO's architecture does not list such units.

The RTX 4090 Mobile is an integrated GPU package with a slot width of IGP and no power connectors. The LX PRO is a discrete dual-slot card, 248 mm long, 118 mm tall, and 48 mm wide, requiring a 16-pin power connector and a 550 W suggested PSU. The RTX 4090 Mobile's display outputs are listed as portable device dependent, while the LX PRO provides 4x DisplayPort 1.4a outputs.

Both GPUs support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The RTX 4090 Mobile supports Vulkan 1.4, whereas the LX PRO supports Vulkan 1.3. Both use a PCIe 4.0 x16 bus interface.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two GPUs, and the wins count for each is zero. The RTX 4090 Mobile, however, has nine individual benchmark scores recorded, while the LX PRO has none. This makes direct comparison possible only through the RTX 4090 Mobile's measured results and the LX PRO's theoretical specifications.

The RTX 4090 Mobile's strongest recorded result is in Geekbench OpenCL, where it scores 180,831. Its Geekbench Vulkan score is 170,774. In Passmark tests, it scores 27212 in G3D, 12347 in GPU compute, 984 in G2D, 310 in DirectX 9, 262 in DirectX 11, 173 in DirectX 10, and 107 in DirectX 12.

Because the LX PRO has no benchmark scores, the only quantitative comparison comes from the RTX 4090 Mobile's nearest rivals in the database. The RTX 4090 Mobile's average score of 43,667 is 0.9% ahead of the RTX 5050 Mobile (43,268), 0.9% ahead of the Quadro M6000 24 GB (43,262), and 0.8% ahead of the Quadro M6000 (43,301). It trails the RTX A6000 (44,075) by 0.9%.

Those margins are small. The RTX 4090 Mobile sits within roughly one percent of four other GPUs in its neighborhood, indicating that its average performance position is tightly clustered. Its 84th percentile rank across all GPUs reflects that standing.

For the LX PRO, the lack of recorded scores means the database cannot confirm any performance advantage. Its theoretical FP32 rate of 24.58 TFLOPS is 25.5% lower than the RTX 4090 Mobile's 32.98 TFLOPS. Its FP16 rate of 49.15 TFLOPS is 49% higher than the RTX 4090 Mobile's 32.98 TFLOPS, but that figure assumes a 2:1 ratio, meaning it executes FP16 at twice the rate of FP32, unlike the RTX 4090 Mobile which runs both at the same rate.

Specification Differences

The two GPUs differ across nearly every major specification field.

• Architecture: RTX 4090 Mobile uses Ada Lovelace; LX PRO uses TrueGPU.
• Chip: AD103 versus 7G105.
• Process node: 5 nm versus 6 nm, both TSMC.
• Transistors: 45,900 million versus unknown.
• Die size: 379 mm² versus unknown.
• Memory size: 16 GB versus 24 GB.
• Memory bus width: 256 bit versus 192 bit.
• Memory bandwidth: 576.0 GB/s versus 432.0 GB/s.
• Shading units: 9728 versus 6144.
• TMUs: 304 versus 192.
• ROPs: 112 versus 96.
• RT cores: 76 versus none recorded.
• Tensor cores: 304 versus none recorded.
• Pixel rate: 189.8 GPixel/s versus 192.0 GPixel/s.
• Texture rate: 515.3 GTexel/s versus 384.0 GTexel/s.
• FP32: 32.98 TFLOPS versus 24.58 TFLOPS.
• FP16: 32.98 TFLOPS (1:1) versus 49.15 TFLOPS (2:1).
• TDP: 120 W versus 225 W.
• Slot width: IGP versus dual-slot.
• Power connectors: None versus 1x 16-pin.
• Suggested PSU: none versus 550 W.
• Display outputs: portable device dependent versus 4x DisplayPort 1.4a.
• Vulkan support: 1.4 versus 1.3.
• Release date: 2023-01-02 versus 2026-03-16.
• Dimensions: not recorded versus 248 mm x 118 mm x 48 mm.

The RTX 4090 Mobile has a wider memory bus and higher bandwidth despite less capacity. The LX PRO has more memory but a narrower bus, resulting in 144.0 GB/s less bandwidth. The RTX 4090 Mobile has 58% more shading units, 58% more TMUs, and 17% more ROPs. It also has substantially higher texture rate and FP32 throughput.

The LX PRO counters with a higher pixel rate by 1.2 GPixel/s and nearly double the FP16 throughput, assuming the 2:1 ratio is sustained. It also offers more VRAM, a lower power draw per unit of memory bandwidth is not relevant here since its TDP is higher at 225 W versus 120 W.

The Verdict

The data supports a clear split. For any workload that relies on recorded performance, the RTX 4090 Mobile is the only option with measured results. Its average benchmark score of 43,667 places it in the 84th percentile, and it sits within 0.9% of several established GPUs. The LX PRO has no benchmark scores, so the database cannot place it in any performance hierarchy.

For compute-heavy tasks that use FP32, the RTX 4090 Mobile is ahead by 8.4 TFLOPS. For texture-bound workloads, its 515.3 GTexel/s rate is 34% higher than the LX PRO's 384.0 GTexel/s. It also has dedicated RT and tensor cores, which the LX PRO does not list.

The LX PRO's advantages are in memory capacity and FP16 throughput. It offers 24 GB versus 16 GB, which matters for large datasets that exceed 16 GB. Its FP16 rate of 49.15 TFLOPS is higher, but that comes with a 2:1 ratio, meaning the hardware trades FP32 throughput for FP16 performance. The LX PRO also has a slightly higher pixel rate and a dual-slot form factor with four DisplayPort outputs, making it a desktop-oriented card.

Users who need verified performance, ray tracing, AI acceleration, or higher FP32 throughput should select the RTX 4090 Mobile. Users who require 24 GB of VRAM, higher FP16 throughput, or a desktop card with four display outputs would look to the LX PRO, but without recorded benchmarks its actual performance remains unverified.

Where Each One Wins

RTX 4090 Mobile wins in:

• FP32 compute: 32.98 TFLOPS versus 24.58 TFLOPS.
• Texture rate: 515.3 GTexel/s versus 384.0 GTexel/s.
• Memory bandwidth: 576.0 GB/s versus 432.0 GB/s.
• Shading units, TMUs, and ROPs: 9728, 304, and 112 versus 6144, 192, and 96.
• Ray tracing: 76 RT cores present, none recorded for LX PRO.
• Tensor operations: 304 tensor cores present, none recorded for LX PRO.
• Power efficiency: 120 W TDP versus 225 W TDP.
• Vulkan support: version 1.4 versus 1.3.
• Recorded benchmark data: nine scores across Geekbench and Passmark suites.

LX PRO wins in:

• Memory capacity: 24 GB versus 16 GB.
• FP16 compute: 49.15 TFLOPS versus 32.98 TFLOPS, at a 2:1 ratio.
• Pixel rate: 192.0 GPixel/s versus 189.8 GPixel/s.
• Form factor for desktop use: dual-slot with 4x DisplayPort 1.4a outputs.
• Physical size: 248 mm length, 118 mm height, 48 mm width provides a discrete card layout.

The RTX 4090 Mobile is the stronger choice for general GPU workloads, gaming, and any application that leverages RT or tensor cores. The LX PRO is the better fit for FP16-heavy compute tasks and for workloads that need more than 16 GB of VRAM, provided the user accepts that its performance has not been measured in the database.