NVIDIA GeForce RTX 5090 SE vs NVIDIA L20 Comparison

Where Each One Wins

The recorded data splits these two NVIDIA accelerators cleanly by workload class. The RTX 5090 SE carries no benchmark entries in the database, while the L20 has two: Geekbench OpenCL at 274,276 and Geekbench Vulkan at 228,018. That makes the L20 the only one of the pair with measurable compute results in this dataset. The RTX 5090 SE, despite its newer architecture and higher raw specifications, has no recorded benchmark scores, so its standing rests entirely on its specification sheet rather than observed performance.

The L20's average benchmark score of 251,147 places it in the 99th percentile of all GPUs in the database. Its nearest rivals bracket it closely: the NVIDIA PG506-232 trails by 11.6 percent, the AMD Radeon PRO W7900D trails by 14.2 percent, while the NVIDIA L40 leads it by 11.6 percent and the NVIDIA RTX 6000 Ada Generation leads by 12.6 percent. This positions the L20 as a strong mid-to-upper performer in its segment, clearly ahead of workstation cards like the PG506-232 and W7900D, but not at the very top of the stack.

For the RTX 5090 SE, the absence of benchmark data means it cannot be placed in the same percentile ranking. However, its specification sheet shows higher theoretical throughput in several categories. The FP32 compute rate of 66.94 TFLOPS exceeds the L20's 59.35 TFLOPS by roughly 12.8 percent. The pixel rate of 380.3 GPixel/s beats the L20's 322.6 GPixel/s by about 17.9 percent. The texture rate of 1,045.9 GTexel/s surpasses the L20's 927.4 GTexel/s by approximately 12.8 percent. These are the areas where the newer card wins on paper.

The L20 wins where memory capacity matters. Its 48 GB of GDDR6 doubles the RTX 5090 SE's 24 GB of GDDR7. For workloads that fit within 24 GB, the newer card's bandwidth advantage applies: 1.34 TB/s versus 864.0 GB/s, a 55 percent gap. But for datasets that exceed 24 GB, the L20's larger frame buffer is the decisive factor. The data does not show any benchmark test that directly compares the two, so these are inferences from the specification sheet.

Architecture Differences

The two cards come from different NVIDIA architectures. The RTX 5090 SE uses the GB202 chip built on Blackwell 2.0, while the L20 uses the AD102 chip built on Ada Lovelace. Both are fabricated on a 5 nm process at TSMC, but the transistor counts differ substantially. The GB202 packs 92,200 million transistors on a 750 mm² die, giving a density of 122.9 million transistors per mm². The AD102 contains 76,300 million transistors on a 609 mm² die, with a higher density of 125.3 million per mm². The newer chip is physically larger and holds more transistors, but the older chip achieves slightly tighter packing.

The RTX 5090 SE is a GeForce 50-series part, released at the end of 2025, succeeding the GeForce 40 series and preceding the GeForce 60 series. The L20 belongs to the Server Ada generation, released in November 2023, succeeding Server Ampere and preceding Server Hopper. The product positioning differs: one is a consumer-oriented GeForce card, the other a server/workstation accelerator. The L20's display outputs are four DisplayPort 1.4a connections, while the RTX 5090 SE offers one HDMI 2.1b and three DisplayPort 2.1b outputs.

Core counts show the newer card with more of nearly everything. The RTX 5090 SE has 14,080 shading units, 440 texture mapping units, 160 render output units, 110 ray tracing cores, and 440 tensor cores. The L20 has 11,776 shading units, 368 TMUs, 128 ROPs, 92 RT cores, and 368 tensor cores. The RTX 5090 SE leads by roughly 19.6 percent in shading units, 19.6 percent in TMUs, 25 percent in ROPs, 19.6 percent in RT cores, and 19.6 percent in tensor cores. These are consistent margins across the execution pipeline.

Memory architecture differs in type and speed. The RTX 5090 SE uses GDDR7 with a 384-bit bus and 1.34 TB/s bandwidth. The L20 uses GDDR6 on the same 384-bit bus but achieves 864.0 GB/s. The newer memory standard delivers a 55 percent bandwidth advantage. Capacity favors the L20 at 48 GB versus 24 GB, exactly double.

Power and interface specifications diverge sharply. The RTX 5090 SE has a TDP of 500 W and a suggested PSU of 900 W, while the L20 draws 275 W with a suggested PSU of 600 W. The newer card consumes 81.8 percent more power. Both use a single 16-pin connector and are dual-slot cards. The RTX 5090 SE runs on PCIe 5.0 x16, the L20 on PCIe 4.0 x16. Physical dimensions are identical in length and height: 267 mm by 111 mm. The RTX 5090 SE is 40 mm wide, while the L20's width is not recorded.

Clock behavior differs by design. The RTX 5090 SE has a base clock of 1740 MHz and a boost of 2377 MHz. The L20 has a lower base of 1440 MHz but a higher boost of 2520 MHz. The L20's boost clock exceeds the RTX 5090 SE's by 6 percent, though the newer card starts from a much higher base. Memory clocks also differ: the RTX 5090 SE runs at 1750 MHz with 28 Gbps effective, the L20 at 2250 MHz with 18 Gbps effective.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two cards. The winsA and winsB fields are both zero, and the headToHeadBenchmarks array is empty. This means no measured comparison exists in the recorded data. The only benchmark scores available belong to the L20, and they are not paired against RTX 5090 SE results.

Where the L20 does have data, its Geekbench OpenCL score of 274,276 exceeds its Vulkan score of 228,018 by 20.3 percent. This indicates the L20 performs better under OpenCL workloads than Vulkan in this particular test. The average of these two scores is 251,147, which is the figure used for its percentile ranking and rival comparisons.

Against its nearest rivals in the database, the L20's average score of 251,147 sits 11.6 percent above the NVIDIA PG506-232's 225,124 and 14.2 percent above the AMD Radeon PRO W7900D's 219,827. It sits 11.6 percent below the NVIDIA L40's 284,111 and 12.6 percent below the NVIDIA RTX 6000 Ada Generation's 287,237. These deltas frame the L20 as a competitive mid-range server card, not a flagship.

For the RTX 5090 SE, the specification-derived margins are the only available comparison. Its FP32 throughput of 66.94 TFLOPS is 12.8 percent higher than the L20's 59.35 TFLOPS. Its texture rate of 1,045.9 GTexel/s is 12.8 percent higher than the L20's 927.4 GTexel/s. Its pixel rate of 380.3 GPixel/s is 17.9 percent higher than the L20's 322.6 GPixel/s. Memory bandwidth of 1.34 TB/s is 55.1 percent higher than 864.0 GB/s. These are theoretical maxima, not measured results.

The L20's advantages are in capacity and efficiency. Its 48 GB memory is double the 24 GB of the RTX 5090 SE. Its TDP of 275 W is 45 percent lower than 500 W. The L20 also has a higher boost clock at 2520 MHz versus 2377 MHz, a 6 percent margin. None of these are benchmark scores, but they are recorded specifications that inform expected behavior.

FAQ

Q: Which card has more memory?

A: The NVIDIA L20 has 48 GB of GDDR6, which is exactly double the 24 GB of GDDR7 in the NVIDIA GeForce RTX 5090 SE.

Q: What is the L20's average benchmark score and percentile rank?

A: The L20's average benchmark score is 251,147, placing it in the 99th percentile of all GPUs in the database. It has two recorded scores: 274,276 in Geekbench OpenCL and 228,018 in Geekbench Vulkan.

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

A: The L20's average score of 251,147 is 11.6 percent higher than the NVIDIA PG506-232 and 14.2 percent higher than the AMD Radeon PRO W7900D. It is 11.6 percent lower than the NVIDIA L40 and 12.6 percent lower than the NVIDIA RTX 6000 Ada Generation.

Q: Does the RTX 5090 SE have any benchmark scores in the database?

A: No. The RTX 5090 SE has an empty benchmark array, no average score, and no nearest rivals. Its recorded data consists entirely of specifications.

Q: Which card has higher compute throughput?

A: The RTX 5090 SE has a higher FP32 rate at 66.94 TFLOPS compared to the L20's 59.35 TFLOPS, a 12.8 percent advantage. It also leads in texture rate (1,045.9 versus 927.4 GTexel/s) and pixel rate (380.3 versus 322.6 GPixel/s).

Q: What are the power requirements for each card?

A: The RTX 5090 SE has a TDP of 500 W and a suggested PSU of 900 W. The L20 has a TDP of 275 W and a suggested PSU of 600 W. Both use a single 16-pin power connector.

Specification Differences

The following fields differ between the two cards:

• Series: GeForce 50-series (RTX 5090 SE) versus Server Ada (L20)
• Chip: GB202 versus AD102
• Architecture: Blackwell 2.0 versus Ada Lovelace
• Generation: GeForce 50 versus Server Ada (Lxx)
• Transistors: 92,200 million versus 76,300 million
• Die size: 750 mm² versus 609 mm²
• Transistor density: 122.9M / mm² versus 125.3M / mm²
• Base clock: 1740 MHz versus 1440 MHz
• Boost clock: 2377 MHz versus 2520 MHz
• Memory clock: 1750 MHz 28 Gbps effective versus 2250 MHz 18 Gbps effective
• Memory size: 24 GB versus 48 GB
• Memory type: GDDR7 versus GDDR6
• Memory bandwidth: 1.34 TB/s versus 864.0 GB/s
• Shading units: 14,080 versus 11,776
• TMUs: 440 versus 368
• ROPs: 160 versus 128
• RT cores: 110 versus 92
• Tensor cores: 440 versus 368
• Pixel rate: 380.3 GPixel/s versus 322.6 GPixel/s
• Texture rate: 1,045.9 GTexel/s versus 927.4 GTexel/s
• FP32: 66.94 TFLOPS versus 59.35 TFLOPS
• FP16: 66.94 TFLOPS (1:1) versus 59.35 TFLOPS (1:1)
• TDP: 500 W versus 275 W
• Suggested PSU: 900 W versus 600 W
• Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x16
• Display outputs: 1x HDMI 2.1b, 3x DisplayPort 2.1b versus 4x DisplayPort 1.4a
• Width: 40 mm versus not recorded
• Release date: 2025-12-31 versus 2023-11-15
• Predecessor: GeForce 40 versus Server Ampere
• Successor: GeForce 60 versus Server Hopper
• Launch MSRP: 1,499 USD versus not recorded

Identical fields include manufacturer (NVIDIA), process node (5 nm), foundry (TSMC), memory bus width (384 bit), slot width (Dual-slot), power connector (1x 16-pin), length (267 mm), height (111 mm), DirectX support (12 Ultimate 12_2), OpenGL (4.6), Vulkan (1.4), and production status (Active).

The Verdict

The recorded data supports two distinct use cases. The NVIDIA L20 is the only card of the pair with measured benchmark results, and those results are strong: a 99th percentile ranking and an average score of 251,147. Its 48 GB memory capacity is double that of the RTX 5090 SE, making it the appropriate choice for workloads with large memory footprints that exceed 24 GB. Its 275 W TDP is also substantially lower, which matters in power-constrained server environments.

The RTX 5090 SE has no benchmark data, so its case rests on specifications. It offers higher theoretical throughput in FP32, texture, pixel, and memory bandwidth categories. Its 66.94 TFLOPS FP32 rate, 1.34 TB/s bandwidth, and 380.3 GPixel/s pixel rate are all clear specification wins. It also uses a newer PCIe 5.0 interface and supports newer display outputs. Its 500 W TDP and 900 W suggested PSU indicate a more power-hungry design.

For users who need measured performance and large memory capacity, the L20 is the documented choice. For users who prioritize raw specification throughput and do not need more than 24 GB, the RTX 5090 SE has the theoretical edge. The absence of direct benchmark comparisons between the two means the verdict cannot be settled by measured performance; it must be decided by workload requirements. The L20's 48 GB and 275 W profile suit memory-heavy, power-conscious deployments. The RTX 5090 SE's higher compute rates and bandwidth suit performance-focused tasks that fit within its 24 GB frame buffer. The data supports both conclusions without contradiction.