L40 CNX: specs and benchmarks
Summary
NVIDIA started L40 CNX sales 13 October 2022. This is an Ada Lovelace architecture desktop card based on 4 nm manufacturing process and primarily aimed at designers. 24 GB of GDDR6 memory clocked at 2.25 GHz are supplied, and together with 384 Bit memory interface this creates a bandwidth of 864.0 GB/s.
Compatibility-wise, this is a dual-slot graphics card attached via PCIe 4.0 x16 interface. Its manufacturer default version has a length of 267 mm. 1x 16-pin power connector is required, and power consumption is at 300 Watt.
Primary details
Some basic facts about L40 CNX: architecture, market segment, release date etc.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Architecture | Ada Lovelace (2022−2024) | |
| GPU code name | AD102 | |
| Market segment | Workstation | |
| Release date | 13 October 2022 (2 years ago) |
Detailed specifications
L40 CNX's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of L40 CNX's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 18176 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 1005 MHz | of 2800 MHz (Playstation 5 Pro GPU) |
| Boost clock speed | 2475 MHz | of 3599 MHz (Radeon RX 7990 XTX) |
| Number of transistors | 76,300 million | of 208,000 million (B200 SXM 192 GB) |
| Manufacturing process technology | 4 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 300 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 1,406 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 89.97 TFLOPS | of 109.7 (GeForce RTX 5090) |
| ROPs | 192 | |
| TMUs | 568 | of 1280 (Data Center GPU Max NEXT) |
| Tensor Cores | 568 | of 1216 (Radeon Instinct MI300X) |
| Ray Tracing Cores | 142 | of 170 (GeForce RTX 5090) |
Form factor & compatibility
This section provides details about the physical dimensions of L40 CNX and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | PCIe 4.0 x16 | |
| Length | 267 mm | |
| Width | 2-slot | |
| Supplementary power connectors | 1x 16-pin |
VRAM capacity and type
Parameters of memory installed on L40 CNX: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | GDDR6 | |
| Maximum RAM amount | 24 GB | of 294912 (Radeon Instinct MI325X) |
| Memory bus width | 384 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 2250 MHz | of 20000 (RTX 5000 Ada Generation Mobile) |
| Memory bandwidth | 864.0 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
Connectivity and outputs
Types and number of video connectors present on L40 CNX. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | 1x HDMI 2.1, 3x DisplayPort 1.4a | |
| HDMI | + |
API compatibility
APIs supported by L40 CNX, sometimes including their particular versions.
| DirectX | 12 Ultimate (12_2) | |
| Shader Model | 6.7 | |
| OpenGL | 4.6 | |
| OpenCL | 3.0 | |
| Vulkan | 1.3 | |
| CUDA | 8.9 |
AMD equivalent
According to our data, the closest AMD alternative to L40 CNX is Radeon PRO W7900.
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with L40 CNX according to our statistics.
