NVIDIA GeForce RTX 5090 vs NVIDIA L4 Comparison

FAQ

Q: How does the NVIDIA L4 compare to the GeForce RTX 5090 in raw compute benchmarks?

A: The RTX 5090 dominates both shared workloads. In Geekbench OpenCL, the RTX 5090 scores 334,370 versus the L4's 140,838, a 57.9% lead. In Geekbench Vulkan, the gap widens: 376,728 versus 121,306, a 67.8% margin for the RTX 5090.

Q: Which card has a higher memory bandwidth, and what does that mean?

A: The RTX 5090 offers 1.79 TB/s of bandwidth from its 512-bit GDDR7 interface, while the L4 provides 300.1 GB/s over a 192-bit GDDR6 bus. The RTX 5090's bandwidth is roughly six times higher, directly impacting throughput in memory-bound tasks.

Q: Are these cards aimed at the same use case?

A: No. The L4 is a server-class, single-slot accelerator with no display outputs and a 72 W TDP, designed for low-power inference and edge deployments. The GeForce RTX 5090 is a dual-slot consumer flagship with display outputs, a 575 W TDP, and a 950 W suggested PSU, targeting high-end desktop rendering and gaming.

Q: What are the architectural generations of each card?

A: The L4 uses the AD104 chip built on the Ada Lovelace architecture, while the RTX 5090 uses the GB202 chip on the newer Blackwell 2.0 architecture. Both are fabricated by TSMC on a 5 nm process.

Q: How does the RTX 5090's launch date and MSRP compare to the L4?

A: The L4 was released on March 20, 2023, and has no listed launch MSRP. The RTX 5090 was released on January 29, 2025, with a launch MSRP of 1,999 USD.

Q: In the database's overall percentile ranking, how do these cards stack against all GPUs?

A: The L4 sits at the 95th percentile with an average benchmark score of 131,072. The RTX 5090 is at the 92nd percentile with an average score of 79,842, though this lower average is heavily influenced by its diverse benchmark suite, which includes lower-scoring legacy tests.

Where Each One Wins

The L4 wins in the server and efficiency domain. It draws only 72 W, requires no power connectors, and fits in a single slot. Its 24 GB of GDDR6 memory at 300.1 GB/s is substantial for a low-power card, and its 60 RT cores and 240 tensor cores provide dedicated acceleration for ray tracing and AI workloads. The L4's nearest rivals include the RTX 3090 Ti (0.7% higher average score) and the RTX 4000 Ada Generation (3.1% higher), placing it in solid mid-range server territory. Its 95th percentile ranking among all GPUs shows it punches far above its power envelope.

The RTX 5090 wins in raw performance and feature completeness. It delivers 104.8 TFLOPS of FP32 compute, more than triple the L4's 30.29 TFLOPS. It also has 32 GB of GDDR7 memory with 1.79 TB/s bandwidth, a 512-bit bus, and a PCIe 5.0 x16 interface, double the L4's PCIe 4.0 x16. The 5090's 170 RT cores and 680 tensor cores represent a 2.8x increase over the L4's counts. It also includes display outputs (1x HDMI 2.1b, 3x DisplayPort 2.1b), making it a complete desktop solution. Its nearest rivals in the database are older Tesla P100 variants, which it edges by 0.3% to 1.4%, a reflection of the wide performance spread in its benchmark results.

The use-case split is clear: the L4 is optimized for density and power-constrained server deployments, while the RTX 5090 is optimized for maximum throughput in a workstation or enthusiast desktop.

Architecture Differences

The two cards come from different NVIDIA architectures. The L4 is built on Ada Lovelace, the architecture that preceded the current Blackwell line. The RTX 5090 uses Blackwell 2.0, the latest generation. Both use the same 5 nm TSMC process, but the chips differ dramatically in scale.

The L4's AD104 die is 294 mm² and contains 35,800 million transistors, yielding a density of 121.8M per mm². The RTX 5090's GB202 die is 750 mm² with 92,200 million transistors, a density of 122.9M per mm². The 5090's die is more than 2.5 times larger and packs nearly 2.6 times the transistors. This scale difference explains the performance gap.

Both support the same API feature set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the underlying hardware differs. The L4 has 7,424 shading units, 240 TMUs, and 80 ROPs. The RTX 5090 has 21,760 shading units, 680 TMUs, and 176 ROPs. These are massive structural differences that affect every workload.

The L4 is a server accelerator with no display outputs, while the RTX 5090 is a full graphics card with HDMI and DisplayPort connectivity. The L4 also lacks power connectors entirely, drawing all power from the PCIe slot, whereas the RTX 5090 requires a 16-pin connector and a 950 W PSU.

Specification Differences

| Specification | NVIDIA L4 | NVIDIA GeForce RTX 5090 |

|---|---|---|

| Chip | AD104 | GB202 |

| Architecture | Ada Lovelace | Blackwell 2.0 |

| Generation | Server Ada (Lxx) | GeForce 50 |

| Transistors | 35,800 million | 92,200 million |

| Die Size | 294 mm² | 750 mm² |

| Base Clock | 795 MHz | 2017 MHz |

| Boost Clock | 2040 MHz | 2407 MHz |

| Memory Size | 24 GB GDDR6 | 32 GB GDDR7 |

| Memory Bus | 192 bit | 512 bit |

| Memory Bandwidth | 300.1 GB/s | 1.79 TB/s |

| Shading Units | 7424 | 21760 |

| TMUs | 240 | 680 |

| ROPs | 80 | 176 |

| RT Cores | 60 | 170 |

| Tensor Cores | 240 | 680 |

| Pixel Rate | 163.2 GPixel/s | 423.6 GPixel/s |

| Texture Rate | 489.6 GTexel/s | 1,636.8 GTexel/s |

| FP32 | 30.29 TFLOPS | 104.8 TFLOPS |

| FP16 | 30.29 TFLOPS (1:1) | 104.8 TFLOPS (1:1) |

| TDP | 72 W | 575 W |

| Slot Width | Single-slot | Dual-slot |

| Power Connectors | None | 1x 16-pin |

| Suggested PSU | 250 W | 950 W |

| Bus Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

| Display Outputs | No outputs | 1x HDMI 2.1b, 3x DisplayPort 2.1b |

| Length | 169 mm (6.7 inches) | 304 mm (12 inches) |

| Height | 56 mm (2.2 inches) | 137 mm (5.4 inches) |

| Width | N/A | 40 mm (1.6 inches) |

| Release Date | 2023-03-20 | 2025-01-29 |

| Predecessor | Server Ampere | GeForce 40 |

| Successor | Server Hopper | GeForce 60 |

| Launch MSRP | N/A | 1,999 USD |

Head-to-Head Benchmarks

The database contains two direct comparisons between these cards, both in Geekbench workloads.

In Geekbench OpenCL, the RTX 5090 scores 334,370 against the L4's 140,838. The RTX 5090 wins by 57.9%. This is a compute-heavy test that exercises the GPU's raw FP32 throughput and memory subsystem. The 5090's 104.8 TFLOPS and 1.79 TB/s bandwidth give it an overwhelming advantage. The L4's 30.29 TFLOPS and 300.1 GB/s are respectable for its class, but the gap is nearly threefold in compute and sixfold in bandwidth.

In Geekbench Vulkan, the RTX 5090 scores 376,728 while the L4 scores 121,306. The margin is 67.8%, even larger than the OpenCL result. Vulkan workloads often scale well with shading unit counts and memory bandwidth, and the 5090 has 21,760 shading units versus 7,424 on the L4. The 5090 also benefits from its higher boost clock: 2407 MHz versus 2040 MHz on the L4. This combination of more cores and higher clocks produces the wider delta.

The L4 has no benchmark wins in this head-to-head, with a 0-2 record. However, the context matters. The L4's average benchmark score of 131,072 places it at the 95th percentile of all GPUs, and its nearest rivals are all within 3.2% of its score. The RTX 5090's average of 79,842 is dragged down by its PassMark legacy tests, which score between 185 and 395, and its PassMark G2D score of 1,413. These low-scoring tests pull its average below the L4's, even though the 5090 wins the two Geekbench comparisons decisively.

The RTX 5090's diverse benchmark suite includes 3DMark Steel Nomad DX12 (18,355), PassMark G3D (39,650), and PassMark GPU Compute (26,756). The L4 only has Geekbench results, which are consistently high. This explains the percentile discrepancy: the L4's narrow benchmark set is uniformly strong, while the 5090's broader set includes workloads where it scores lower relative to its peak capabilities.

For users comparing these two, the data shows a clear performance hierarchy. The RTX 5090 is the faster card in every direct comparison, with margins ranging from 57.9% to 67.8%. The L4 is the more efficient card, with a 72 W TDP that is eight times lower than the 5090's 575 W, and it occupies a single slot with no power connectors. The choice depends entirely on whether the priority is raw throughput or power-constrained density.