NVIDIA Rubin GPU vs Lisuan Tech LX PRO Comparison

The Verdict

The recorded data presents two fundamentally different products that share only a production status of Active and a 50th percentile ranking among all GPUs in the database. The NVIDIA Rubin GPU, built on the 3 nm process with a GR100 chip, is a server-class compute module designed for extreme workloads, while the Lisuan Tech LX PRO, built on the 6 nm process with a 7G105 chip, is a dual-slot consumer-oriented card with display outputs and full API support. The benchmark database contains no recorded benchmark scores for either product, and the head-to-head benchmark table is empty, so performance comparisons must be drawn entirely from the architectural and specification data provided.

For users requiring maximum compute throughput, the NVIDIA Rubin GPU is the only choice supported by the data. It delivers 130.0 TFLOPS of FP32 performance, 260.0 TFLOPS of FP16 performance, and 22.1 TB/s of memory bandwidth from 288 GB of HBM4 memory. The Lisuan Tech LX PRO, by contrast, delivers 24.58 TFLOPS FP32, 49.15 TFLOPS FP16, and 432.0 GB/s from 24 GB of GDDR6. The Rubin GPU offers more than five times the FP32 throughput and more than fifty times the memory bandwidth. The data indicates a 2300 W TDP with a suggested 2700 W power supply for the Rubin, versus a 225 W TDP and 550 W suggested PSU for the LX PRO. The LX PRO, however, is the only product in this comparison with display outputs, offering 4x DisplayPort 1.4a, which makes it suitable for direct display connection.

The Lisuan Tech LX PRO is the appropriate choice for systems requiring standard graphics API support, as it lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, while the NVIDIA Rubin GPU lists N/A for all three APIs. The LX PRO also has a defined physical footprint of 248 mm length, 118 mm height, and 48 mm width, fitting into a dual-slot configuration. The Rubin GPU is an SXM Module with no listed dimensions. The data shows no pricing information for either product, so no cost-based selection can be made.

Architecture Differences

The NVIDIA Rubin GPU uses the GR100 chip on a 3 nm process at TSMC, with a transistor count of 336,000 million and a die size of 1456 mm². The transistor density calculates to 230.8 million transistors per square millimeter. The Lisuan Tech LX PRO uses the 7G105 chip on a 6 nm process, also at TSMC, but the database lists transistor count and die size as unknown. The Rubin GPU belongs to the Server Rubin (Rxx) generation, while the LX PRO belongs to the 7G100 generation. The Rubin architecture is named Rubin, and the LX PRO architecture is named TrueGPU.

Memory architecture differs substantially. The Rubin GPU uses 288 GB of HBM4 with a 16384-bit bus and 22.1 TB/s bandwidth. The LX PRO uses 24 GB of GDDR6 with a 192-bit bus and 432.0 GB/s bandwidth. Memory clock rates also differ: the Rubin lists 2695 MHz with 10.8 Gbps effective, while the LX PRO lists 2250 MHz with 18 Gbps effective. The Rubin GPU has a base clock of 700 MHz and a boost clock of 2267 MHz, whereas the LX PRO has no base or boost clock values recorded.

Compute resources show a wide gap. The Rubin GPU has 28,672 shading units, 896 texture mapping units, and 24 raster operation pipelines. The LX PRO has 6,144 shading units, 192 TMUs, and 96 ROPs. The Rubin GPU includes 896 tensor cores, while the LX PRO has no tensor core count recorded. Neither product lists ray tracing core counts. The Rubin GPU achieves a pixel rate of 54.41 GPixel/s and a texture rate of 2,031.2 GTexel/s. The LX PRO achieves 192.0 GPixel/s and 384.0 GTexel/s. The LX PRO has a higher pixel rate, while the Rubin has a substantially higher texture rate.

The Rubin GPU uses a PCIe 6.0 x16 bus interface, while the LX PRO uses PCIe 4.0 x16. The Rubin has no display outputs, and the LX PRO has 4x DisplayPort 1.4a. The Rubin is an SXM Module with no power connector details, while the LX PRO is dual-slot with a 1x 16-pin power connector. The suggested PSU is 2700 W for the Rubin and 550 W for the LX PRO. The Rubin GPU was released on 2025-12-31, and the LX PRO on 2026-03-16, making the LX PRO a later release by the recorded dates. The Rubin GPU lists its predecessor as Server Blackwell, while the LX PRO has no predecessor.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA Rubin GPU delivers 130.0 TFLOPS of FP32 performance, which is more than five times the 24.58 TFLOPS of the Lisuan Tech LX PRO.

Q: Which GPU has more memory bandwidth?

A: The NVIDIA Rubin GPU has 22.1 TB/s of bandwidth from its 288 GB HBM4 memory on a 16384-bit bus. The Lisuan Tech LX PRO has 432.0 GB/s from 24 GB GDDR6 on a 192-bit bus. The Rubin bandwidth is over fifty times higher.

Q: Does either GPU support display outputs?

A: Only the Lisuan Tech LX PRO has display outputs, listed as 4x DisplayPort 1.4a. The NVIDIA Rubin GPU lists no display outputs.

Q: Which GPU supports DirectX, OpenGL, and Vulkan?

A: The Lisuan Tech LX PRO supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The NVIDIA Rubin GPU lists N/A for DirectX, OpenGL, and Vulkan.

Q: What is the power requirement difference?

A: The NVIDIA Rubin GPU has a TDP of 2300 W with a suggested 2700 W power supply. The Lisuan Tech LX PRO has a TDP of 225 W with a suggested 550 W power supply.

Q: Which GPU has a higher pixel rate?

A: The Lisuan Tech LX PRO has a pixel rate of 192.0 GPixel/s, which is higher than the NVIDIA Rubin GPU's 54.41 GPixel/s. The Rubin GPU, however, has a much higher texture rate of 2,031.2 GTexel/s versus 384.0 GTexel/s.

Specification Differences

The two products differ across nearly every recorded specification. The process node is 3 nm for the NVIDIA Rubin GPU and 6 nm for the Lisuan Tech LX PRO, both at TSMC. Transistor count is 336,000 million for the Rubin, while the LX PRO lists unknown. Die size is 1456 mm² for the Rubin, and unknown for the LX PRO. Transistor density is 230.8 million per mm² for the Rubin, and null for the LX PRO.

Clock specifications differ. The Rubin has a base clock of 700 MHz and boost clock of 2267 MHz, while the LX PRO has neither recorded. Memory clock is 2695 MHz with 10.8 Gbps effective for the Rubin, and 2250 MHz with 18 Gbps effective for the LX PRO.

Memory size is 288 GB for the Rubin versus 24 GB for the LX PRO. Memory type is HBM4 versus GDDR6. Bus width is 16384 bit versus 192 bit. Bandwidth is 22.1 TB/s versus 432.0 GB/s.

Shading units are 28,672 versus 6,144. TMUs are 896 versus 192. ROPs are 24 versus 96. Tensor cores are 896 for the Rubin, and null for the LX PRO. Pixel rate is 54.41 GPixel/s versus 192.0 GPixel/s. Texture rate is 2,031.2 GTexel/s versus 384.0 GTexel/s. FP32 is 130.0 TFLOPS versus 24.58 TFLOPS. FP16 is 260.0 TFLOPS versus 49.15 TFLOPS, both at 2:1 ratio.

TDP is 2300 W versus 225 W. Slot width is SXM Module versus Dual-slot. Power connectors are not listed for the Rubin, while the LX PRO has 1x 16-pin. Suggested PSU is 2700 W versus 550 W. Bus interface is PCIe 6.0 x16 versus PCIe 4.0 x16. Display outputs are none versus 4x DisplayPort 1.4a. APIs are N/A for DirectX, OpenGL, and Vulkan on the Rubin, versus 12 Ultimate (12_2), 4.6, and 1.3 on the LX PRO. Dimensions are not listed for the Rubin, while the LX PRO measures 248 mm by 118 mm by 48 mm. Release dates are 2025-12-31 for the Rubin and 2026-03-16 for the LX PRO. The Rubin lists a predecessor as Server Blackwell, while the LX PRO has none.

Head-to-Head Benchmarks

The database contains no recorded benchmark scores for either product, and the head-to-head benchmark table is empty. The wins counters for both products are zero. Comparisons must therefore rely on the recorded architectural specifications.

The largest advantage for the NVIDIA Rubin GPU appears in memory bandwidth. The Rubin's 22.1 TB/s is approximately 51 times the LX PRO's 432.0 GB/s. This bandwidth comes from a 16384-bit bus and HBM4 memory, versus a 192-bit bus with GDDR6. The Rubin also holds a 5.3x advantage in FP32 compute, delivering 130.0 TFLOPS versus 24.58 TFLOPS. In FP16, the Rubin's 260.0 TFLOPS is 5.3x the LX PRO's 49.15 TFLOPS as well. Texture rate favors the Rubin at 2,031.2 GTexel/s, which is 5.3x the LX PRO's 384.0 GTexel/s. The shading unit count of 28,672 versus 6,144 is a 4.7x difference, and the TMU count of 896 versus 192 is a 4.7x difference.

The Lisuan Tech LX PRO holds advantages in several specific metrics. The pixel rate of 192.0 GPixel/s is 3.5x the Rubin's 54.41 GPixel/s. The ROP count of 96 versus 24 is a 4x advantage for the LX PRO. The LX PRO also lists a higher memory clock in terms of effective data rate, at 18 Gbps effective versus 10.8 Gbps effective, though the Rubin's much wider bus and larger memory pool deliver far higher total bandwidth. The LX PRO's 225 W TDP is a fraction of the Rubin's 2300 W, and its suggested 550 W PSU is far below the Rubin's 2700 W suggestion.

The Rubin GPU's tensor core count of 896, with no comparable figure for the LX PRO, indicates a significant capability difference for tensor workloads, though no benchmark data confirms performance. The Rubin's PCIe 6.0 x16 interface provides a newer bus generation than the LX PRO's PCIe 4.0 x16. The LX PRO's display outputs and graphics API support make it the only one of the two that can drive displays directly according to the recorded data.

The production status for both is Active, and both hold a 50th percentile ranking among all GPUs in the database, with average benchmark scores of zero for each. The Rubin GPU, released on 2025-12-31, precedes the LX PRO's release on 2026-03-16. Neither product has a successor listed, and neither has a launch MSRP recorded. The predecessors field shows Server Blackwell for the Rubin and null for the LX PRO. The data indicates two active products with divergent design goals: one optimized for massive parallel compute and memory capacity, the other for conventional graphics output with a far lower power envelope.