NVIDIA GeForce RTX 4090 D vs Lisuan Tech LX ULTRA Comparison

FAQ

Q: Which GPU has the higher average benchmark score in the database?

A: The NVIDIA GeForce RTX 4090 D has an average benchmark score of 178,050, placing it in the 98th percentile of all GPUs. The Lisuan Tech LX ULTRA has no recorded average benchmark score, at 0, and sits in the 50th percentile.

Q: What memory configuration does each card use?

A: Both cards have 24 GB of memory, but they differ in type and bus width. The RTX 4090 D uses GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth, while the LX ULTRA uses GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth.

Q: How do the two cards compare in terms of physical size?

A: The RTX 4090 D measures 304 mm in length, 137 mm in height, and 61 mm in width, making it a triple-slot card. The LX ULTRA measures 268 mm in length, 112 mm in height, and 40 mm in width, and is a dual-slot card.

Q: Which GPU has higher FP32 compute performance?

A: The RTX 4090 D delivers 73.54 TFLOPS of FP32 performance, while the LX ULTRA delivers 24.58 TFLOPS. The RTX 4090 D is roughly three times higher in raw single-precision throughput.

Q: What is the production status of each card?

A: The RTX 4090 D is listed as end-of-life, with a release date of December 27, 2023. The LX ULTRA is listed as active, with a release date of March 16, 2026.

Q: What are the power requirements for each GPU?

A: The RTX 4090 D has a TDP of 425 W and a suggested PSU of 800 W, using a single 16-pin connector. The LX ULTRA has a TDP of 225 W and a suggested PSU of 550 W, also using a single 16-pin connector.

Architecture Differences

The two GPUs come from fundamentally different design lineages. The NVIDIA GeForce RTX 4090 D is built on the Ada Lovelace architecture, using the AD102 chip, and is manufactured on a 5 nm process at TSMC. The die size is 609 mm² and contains 76,300 million transistors, yielding a transistor density of 125.3 million per square millimeter. The Lisuan Tech LX ULTRA uses the TrueGPU architecture with the 7G105 chip, fabricated on a 6 nm process, also at TSMC. Its transistor count and die size are not recorded in the database.

The compute core configurations diverge sharply. The RTX 4090 D has 14,592 shading units, 456 texture mapping units, 176 ROPs, 114 RT cores, and 456 tensor cores. The LX ULTRA has 6,144 shading units, 192 texture mapping units, and 96 ROPs, with no recorded RT core or tensor core counts. These structural differences directly explain the performance gap in raw throughput metrics.

Clock behavior also differs. The RTX 4090 D has a base clock of 2280 MHz and a boost clock of 2520 MHz, while the LX ULTRA has no recorded base or boost clocks. The memory clocks show a similar split: the RTX 4090 D runs its GDDR6X at 1313 MHz with 21 Gbps effective, while the LX ULTRA runs its GDDR6 at 2250 MHz with 18 Gbps effective, though the wider bus on the NVIDIA card gives it far higher aggregate bandwidth.

The feature sets overlap on several API fronts. Both cards support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The RTX 4090 D supports Vulkan 1.4, while the LX ULTRA supports Vulkan 1.3. The RTX 4090 D has a 16-pin power connector, as does the LX ULTRA, but the NVIDIA card carries a triple-slot cooler and measures 304 mm long, while the LX ULTRA is a dual-slot design at 268 mm long. The display outputs differ: the RTX 4090 D has 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the LX ULTRA has 4x DisplayPort 1.4a.

The RTX 4090 D is part of the GeForce 40 generation, succeeded by GeForce 50 and preceded by GeForce 30. The LX ULTRA belongs to the 7G100 generation with no predecessor or successor listed. The RTX 4090 D carries a launch MSRP of 1,599 USD, while the LX ULTRA has no recorded launch price.

The Verdict

The benchmark data presents a clear hierarchy. The RTX 4090 D sits in the 98th percentile of all GPUs with an average score of 178,050, while the LX ULTRA sits in the 50th percentile with an average score of 0, as no benchmark results are recorded for it. The RTX 4090 D is the superior performer by every measurable compute metric in the database.

For users prioritizing raw performance, the RTX 4090 D is the only choice with recorded data to support it. Its FP32 throughput of 73.54 TFLOPS, texture rate of 1,149.1 GTexel/s, and pixel rate of 443.5 GPixel/s are all substantially higher than the LX ULTRA's corresponding figures of 24.58 TFLOPS, 384.0 GTexel/s, and 192.0 GPixel/s. The RTX 4090 D also has a wider memory bus at 384-bit versus 192-bit, and higher memory bandwidth at 1.01 TB/s versus 432.0 GB/s.

The LX ULTRA does have advantages in physical design efficiency. It uses a dual-slot cooler instead of a triple-slot, measures 268 mm versus 304 mm in length, and has a lower TDP of 225 W versus 425 W. It also supports a lower suggested PSU of 550 W versus 800 W. These are meaningful for compact builds or systems with tighter power budgets, but they come with a large compute penalty.

The production statuses differ as well. The RTX 4090 D is end-of-life, released in December 2023, while the LX ULTRA is active, released in March 2026. The LX ULTRA is a newer product, but the database shows no benchmark scores for it, so its real-world performance cannot be verified from the recorded data.

The RTX 4090 D also has a measurable standing against other high-end GPUs. Its nearest rivals in the database include the NVIDIA RTX PRO 5000 Blackwell with an average score of 182,109 and a delta of -2.2%, the NVIDIA A100 SXM4 80 GB at 183,725 with a delta of -3.1%, the NVIDIA RTX 5000 Ada Generation at 184,664 with a delta of -3.6%, and the NVIDIA A100 SXM4 40 GB at 187,147 with a delta of -4.9%. This means the RTX 4090 D trails these four cards by margins ranging from 2.2% to 4.9%, placing it just below the top tier of professional and compute-oriented GPUs.

Users who need maximum compute, high memory bandwidth, and a proven benchmark track record should select the RTX 4090 D. Users who value a smaller physical footprint, lower power draw, and an active production status may consider the LX ULTRA, but they should note the absence of any recorded performance data to validate its capabilities.

Specification Differences

The two cards differ across nearly every specification field in the database.

Process and chip: The RTX 4090 D uses the AD102 chip on a 5 nm process. The LX ULTRA uses the 7G105 chip on a 6 nm process.

Transistors and die: The RTX 4090 D has 76,300 million transistors on a 609 mm² die, with a density of 125.3 million per mm². The LX ULTRA has unknown transistor count and die size.

Clocks: The RTX 4090 D has a base clock of 2280 MHz and a boost clock of 2520 MHz. The LX ULTRA has no recorded base or boost clocks. Memory clock is 1313 MHz with 21 Gbps effective on the RTX 4090 D, and 2250 MHz with 18 Gbps effective on the LX ULTRA.

Memory: Both have 24 GB, but the RTX 4090 D uses GDDR6X with a 384-bit bus and 1.01 TB/s bandwidth. The LX ULTRA uses GDDR6 with a 192-bit bus and 432.0 GB/s bandwidth.

Compute units: The RTX 4090 D has 14,592 shading units, 456 TMUs, 176 ROPs, 114 RT cores, and 456 tensor cores. The LX ULTRA has 6,144 shading units, 192 TMUs, 96 ROPs, and no recorded RT or tensor core counts.

Rates: The RTX 4090 D has a pixel rate of 443.5 GPixel/s and a texture rate of 1,149.1 GTexel/s. The LX ULTRA has a pixel rate of 192.0 GPixel/s and a texture rate of 384.0 GTexel/s.

Compute throughput: The RTX 4090 D has 73.54 TFLOPS FP32 and 73.54 TFLOPS FP16 at a 1:1 ratio. The LX ULTRA has 24.58 TFLOPS FP32 and 49.15 TFLOPS FP16 at a 2:1 ratio.

Power: The RTX 4090 D has a TDP of 425 W and a suggested PSU of 800 W. The LX ULTRA has a TDP of 225 W and a suggested PSU of 550 W.

Physical dimensions: The RTX 4090 D is 304 mm long, 137 mm high, and 61 mm wide, triple-slot. The LX ULTRA is 268 mm long, 112 mm high, and 40 mm wide, dual-slot.

Display outputs: The RTX 4090 D has 1x HDMI 2.1 and 3x DisplayPort 1.4a. The LX ULTRA has 4x DisplayPort 1.4a.

API support: Both support DirectX 12 Ultimate and OpenGL 4.6. The RTX 4090 D supports Vulkan 1.4, the LX ULTRA supports Vulkan 1.3.

Production and release: The RTX 4090 D is end-of-life, released December 2023. The LX ULTRA is active, released March 2026.

Benchmark standing: The RTX 4090 D has an average score of 178,050, the 98th percentile, and four nearest rivals with deltas from -2.2% to -4.9%. The LX ULTRA has an average score of 0, the 50th percentile, and no nearest rivals.

Head-to-Head Benchmarks

The database records head-to-head benchmark results for this pair as empty, and the win counts for both cards are zero. However, individual benchmark scores are available for the RTX 4090 D, while the LX ULTRA has no recorded benchmark scores at all.

The RTX 4090 D scores 8,587 in the 3DMark Steel Nomad DX12 test. It scores 278,621 in Geekbench OpenCL and 246,941 in Geekbench Vulkan. The LX ULTRA has no entries in any of these tests, so direct comparisons are impossible from the recorded data.

The average benchmark score of the RTX 4090 D is 178,050, which places it in the 98th percentile of all GPUs. The LX ULTRA has an average benchmark score of 0, placing it in the 50th percentile. This gap is substantial, but it reflects the absence of test data for the LX ULTRA rather than a measured performance result.

The RTX 4090 D's standing against its nearest rivals provides context for its performance class. It trails the NVIDIA RTX PRO 5000 Blackwell by 2.2%, with the rival scoring 182,109. It trails the NVIDIA A100 SXM4 80 GB by 3.1%, with that card scoring 183,725. It trails the NVIDIA RTX 5000 Ada Generation by 3.6%, with a score of 184,664. It trails the NVIDIA A100 SXM4 40 GB by 4.9%, with a score of 187,147. These margins are all within single-digit percentages, indicating that the RTX 4090 D competes closely with these high-end cards despite being slightly behind each one.

In raw compute terms, the RTX 4090 D delivers 73.54 TFLOPS of FP32 performance, which is exactly three times the 24.58 TFLOPS of the LX ULTRA. The texture rate of 1,149.1 GTexel/s versus 384.0 GTexel/s gives the RTX 4090 D roughly three times the texture fill rate. The pixel rate of 443.5 GPixel/s versus 192.0 GPixel/s gives it more than twice the pixel throughput.

Memory bandwidth shows the largest relative gap. The RTX 4090 D offers 1.01 TB/s, while the LX ULTRA offers 432.0 GB/s. The RTX 4090 D has more than twice the bandwidth, a consequence of its 384-bit bus and GDDR6X memory technology. The LX ULTRA's 192-bit bus with GDDR6 cannot match that throughput.

The RTX 4090 D also has a significantly larger compute resource pool: 14,592 shading units versus 6,144, 456 TMUs versus 192, and 176 ROPs versus 96. It additionally includes 114 RT cores and 456 tensor cores, neither of which are recorded for the LX ULTRA. The RTX 4090 D supports FP16 at a 1:1 ratio with FP32, meaning both run at 73.54 TFLOPS. The LX ULTRA runs FP16 at a 2:1 ratio, delivering 49.15 TFLOPS while its FP32 is 24.58 TFLOPS.

The power efficiency comparison favors the LX ULTRA in absolute terms. The LX ULTRA draws 225 W versus 425 W for the RTX 4090 D, and its suggested PSU is 550 W versus 800 W. But the RTX 4090 D delivers substantially more performance per watt when considering its FP32 output, though the LX ULTRA's lack of benchmark scores prevents a full efficiency assessment.

The absence of head-to-head benchmark entries means no single test result directly compares the two. The database shows the RTX 4090 D with three recorded benchmark scores, all of which are substantial. The LX ULTRA has none. For any user relying on measured performance data, the RTX 4090 D is the only card with verifiable results in this comparison.