GeForce RTX 5090 Mobile vs L20
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Ada Lovelace (2022−2024) | Blackwell 2.0 (2025) |
| GPU code name | AD102 | GB203 |
| Market segment | Workstation | Laptop |
| Release date | 16 November 2023 (less than a year ago) | 2025 |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 11776 | 10752 |
| Core clock speed | 1440 MHz | 1500 MHz |
| Boost clock speed | 2520 MHz | 2000 MHz |
| Number of transistors | 76,300 million | no data |
| Manufacturing process technology | 5 nm | 0 nm |
| Power consumption (TDP) | 275 Watt | 175 Watt |
| Texture fill rate | 927.4 | 672.0 |
| Floating-point processing power | 59.35 TFLOPS | 43.01 TFLOPS |
| ROPs | 128 | 128 |
| TMUs | 368 | 336 |
| Tensor Cores | 368 | 336 |
| Ray Tracing Cores | 92 | 84 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| Length | 267 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 16-pin | no data |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR6 | GDDR7 |
| Maximum RAM amount | 48 GB | 16 GB |
| Memory bus width | 384 Bit | 256 Bit |
| Memory clock speed | 2250 MHz | 2500 MHz |
| Memory bandwidth | 864.0 GB/s | 1.01 TB/s |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 4x DisplayPort 1.4a | 1x HDMI 2.1, 3x DisplayPort 1.4a |
| HDMI | - | + |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.7 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.3 | 1.3 |
| CUDA | 8.9 | 10.1 |
Pros & cons summary
| Maximum RAM amount | 48 GB | 16 GB |
| Power consumption (TDP) | 275 Watt | 175 Watt |
L20 has a 200% higher maximum VRAM amount.
RTX 5090 Mobile, on the other hand, has 57.1% lower power consumption.
We couldn't decide between L20 and GeForce RTX 5090 Mobile. We've got no test results to judge.
Be aware that L20 is a workstation card while GeForce RTX 5090 Mobile is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
