NVIDIA L20 vs Lisuan Tech LX ULTRA Comparison

Head-to-Head Benchmarks

The recorded data presents an unusual comparison: the NVIDIA L20 has two benchmark entries in the database, while the Lisuan Tech LX ULTRA has no recorded benchmark scores. The L20 achieves an OpenCL score of 274,276 and a Vulkan score of 228,018, producing an average benchmark score of 251,147. The LX ULTRA shows an average benchmark score of 0, placing it in the 50th percentile of all GPUs, while the L20 sits in the 99th percentile.

With no head-to-head benchmark entries and zero wins recorded for either card, the quantitative comparison relies on the L20's measured results and the LX ULTRA's absence of data. The L20 outperforms its nearest rivals in average score: it sits 11.6% ahead of the NVIDIA PG506-232, which scores 225,124, and 14.2% ahead of the AMD Radeon PRO W7900D, which scores 219,827. Conversely, the L20 trails the NVIDIA L40 by 11.6% (that card scores 284,111) and the NVIDIA RTX 6000 Ada Generation by 12.6% (that card scores 287,237).

The LX ULTRA's lack of benchmark data means no direct performance claims can be made from measurements. Its 50th percentile ranking reflects the database's treatment of unmeasured hardware, not a tested result. The L20's 99th percentile indicates that its recorded scores place it among the top 1% of all GPUs in the database.

The L20's OpenCL score of 274,276 exceeds its Vulkan score of 228,018 by roughly 20%. This gap suggests the card's compute-oriented workloads through OpenCL deliver stronger results than graphics-oriented Vulkan tasks, though both scores remain high in absolute terms. The average of these two, 251,147, aligns closely with the midpoint between its nearest rivals, the PG506-232 below and the L40 above.

For the LX ULTRA, the absence of scores means the database cannot confirm any performance level. Its architectural specifications, covered later, provide the only basis for understanding its capabilities, but without benchmark results, no measured comparison to the L20 is possible.

Where Each One Wins

The L20 wins in every measurable category because it has recorded benchmark results and the LX ULTRA does not. In OpenCL, the L20's 274,276 score demonstrates strong general-purpose compute performance. In Vulkan, its 228,018 score shows capable graphics rendering performance. The L20's average benchmark score of 251,147 places it 11.6% ahead of the PG506-232 and 14.2% ahead of the Radeon PRO W7900D, confirming its position as a mid-to-high performer in the database's rankings.

The LX ULTRA wins only in the sense that its specifications suggest a different design target. With no benchmarks, it cannot claim any measured victory. Its 24 GB memory capacity, 432.0 GB/s bandwidth, and 24.58 TFLOPS FP32 performance indicate a more modest compute envelope than the L20, which offers 48 GB memory, 864.0 GB/s bandwidth, and 59.35 TFLOPS FP32. The LX ULTRA's FP16 performance of 49.15 TFLOPS at a 2:1 ratio exceeds its FP32 rate, whereas the L20 delivers 59.35 TFLOPS for both FP16 and FP32 at a 1:1 ratio.

For use cases requiring heavy FP32 compute, large memory pools, or high bandwidth, the L20's measured data and specifications point to clear advantages. For workloads that might favor a lower-power, lower-memory configuration, the LX ULTRA's 225 W TDP versus the L20's 275 W TDP suggests a smaller thermal footprint, though no performance data confirms how that power budget translates to real-world results.

FAQ

Q: What are the recorded benchmark scores for the NVIDIA L20?

A: The L20 scores 274,276 in Geekbench OpenCL and 228,018 in Geekbench Vulkan, producing an average benchmark score of 251,147.

Q: Does the Lisuan Tech LX ULTRA have any benchmark scores in the database?

A: No. The LX ULTRA has no benchmark entries, an average benchmark score of 0, and no nearest rivals listed.

Q: How does the L20 compare to its nearest rivals in average score?

A: The L20 is 11.6% ahead of the NVIDIA PG506-232 (225,124), 14.2% ahead of the AMD Radeon PRO W7900D (219,827), 11.6% behind the NVIDIA L40 (284,111), and 12.6% behind the NVIDIA RTX 6000 Ada Generation (287,237).

Q: What is the percentile ranking for each card?

A: The L20 ranks in the 99th percentile of all GPUs, while the LX ULTRA ranks in the 50th percentile.

Q: What memory configurations do the two cards use?

A: The L20 has 48 GB of GDDR6 memory on a 384-bit bus with 864.0 GB/s bandwidth. The LX ULTRA has 24 GB of GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth.

Q: Which card has higher FP32 compute performance?

A: The L20 delivers 59.35 TFLOPS FP32, while the LX ULTRA delivers 24.58 TFLOPS FP32, a difference of roughly 2.4 times in favor of the L20.

Specification Differences

The two cards differ across nearly every specification field. The L20 uses the AD102 chip with Ada Lovelace architecture, while the LX ULTRA uses the 7G105 chip with TrueGPU architecture. The L20 is built on a 5 nm process node, the LX ULTRA on a 6 nm node, both from TSMC.

The L20 has 76,300 million transistors on a 609 mm² die, producing a transistor density of 125.3M per mm². The LX ULTRA lists unknown transistor count and die size. Clock speeds differ: the L20 has a 1440 MHz base clock and 2520 MHz boost clock, while the LX ULTRA lists no base or boost clocks. Both cards run memory at 2250 MHz with 18 Gbps effective speed.

Memory capacity differs substantially: 48 GB versus 24 GB. Bus width differs too: 384 bit versus 192 bit. Bandwidth follows: 864.0 GB/s versus 432.0 GB/s. The L20 packs 11,776 shading units, 368 texture mapping units, 128 raster output units, 92 ray tracing cores, and 368 tensor cores. The LX ULTRA has 6,144 shading units, 192 TMUs, 96 ROPs, and no listed ray tracing or tensor cores.

Pixel and texture rates reflect these differences. The L20 achieves 322.6 GPixel/s and 927.4 GTexel/s. The LX ULTRA achieves 192.0 GPixel/s and 384.0 GTexel/s. FP32 compute stands at 59.35 TFLOPS for the L20 versus 24.58 TFLOPS for the LX ULTRA. FP16 differs in ratio: the L20 hits 59.35 TFLOPS at a 1:1 ratio, while the LX ULTRA hits 49.15 TFLOPS at a 2:1 ratio.

Power consumption differs: 275 W TDP for the L20 versus 225 W for the LX ULTRA. The suggested PSU is 600 W for the L20 and 550 W for the LX ULTRA. Both use a dual-slot design and a single 16-pin power connector. Both use PCIe 4.0 x16 and have four DisplayPort 1.4a outputs. Dimensions are nearly identical: the L20 measures 267 mm by 111 mm, the LX ULTRA measures 268 mm by 112 mm by 40 mm, adding thickness information.

API support differs in Vulkan version: the L20 supports Vulkan 1.4, while the LX ULTRA supports Vulkan 1.3. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6. Release dates differ: the L20 launched on November 15, 2023, while the LX ULTRA has a release date of March 16, 2026. The L20 lists its predecessor as Server Ampere and successor as Server Hopper; the LX ULTRA lists neither.

Architecture Differences

The L20 belongs to the Server Ada generation under the Lxx naming scheme, built on the Ada Lovelace architecture with the AD102 chip. The LX ULTRA belongs to the 7G100 generation with the TrueGPU architecture and the 7G105 chip. This architectural split explains several downstream differences.

The L20's ray tracing cores and tensor cores are present and counted: 92 RT cores and 368 tensor cores. The LX ULTRA lists no RT cores or tensor cores, suggesting a design without dedicated hardware for these functions, though the absence of data does not confirm their total absence. The L20's 1:1 FP16 to FP32 ratio indicates unified compute paths, while the LX ULTRA's 2:1 FP16 ratio suggests a different throughput strategy for half-precision workloads.

The L20's transistor count of 76,300 million on a 609 mm² die gives it a density of 125.3M per mm². The LX ULTRA's unknown transistor count and die size prevent direct density comparison. The process node difference, 5 nm versus 6 nm, favors the L20 in theoretical scaling, though both come from TSMC.

Vulkan API support differs: 1.4 for the L20 versus 1.3 for the LX ULTRA. This affects feature availability in graphics workloads. Both cards support DirectX 12 Ultimate and OpenGL 4.6, maintaining parity in those API stacks.

The L20's predecessor and successor entries, Server Ampere and Server Hopper, place it in a clear generational lineage within NVIDIA's server lineup. The LX ULTRA has no predecessor or successor listed, marking it as a standalone entry in the database. The L20's release date of November 2023 predates the LX ULTRA's March 2026 date by more than two years, though the database records both as Active production status.

The LX ULTRA's dimensions include a width of 40 mm, which the L20 does not list. Both cards share the same display outputs, bus interface, power connector type, and slot width, indicating similar physical integration requirements despite their architectural differences. The L20's higher TDP of 275 W versus 225 W for the LX ULTRA aligns with its larger memory pool, higher compute rates, and additional hardware units, though the database does not provide efficiency metrics to quantify the trade-off.