L20: specs and benchmarks

Summary

NVIDIA started L20 sales 16 November 2023. This is an Ada Lovelace architecture desktop card based on 5 nm manufacturing process and primarily aimed at designers. 48 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 275 Watt.

Primary details

Some basic facts about L20: 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	16 November 2023 (1 year ago)

Detailed specifications

L20's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of L20's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores	11776	of 21760 (GeForce RTX 5090)
Core clock speed	1440 MHz	of 2670 MHz (Arc B580)
Boost clock speed	2520 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	5 nm	of 3 nm (Arc Graphics 140V)
Power consumption (TDP)	275 Watt	of 2400 Watt (Data Center GPU Max Subsystem)
Texture fill rate	927.4	of 2,554 (Radeon Instinct MI300X)
Floating-point processing power	59.35 TFLOPS	of 109.7 (GeForce RTX 5090)
ROPs	128	of 192 (Radeon RX 7900 XTX)
TMUs	368	of 1280 (Data Center GPU Max NEXT)
Tensor Cores	368	of 1216 (Radeon Instinct MI300X)
Ray Tracing Cores	92	of 170 (GeForce RTX 5090)

Form factor & compatibility

This section provides details about the physical dimensions of L20 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 L20: 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	48 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 L20. 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

4x DisplayPort 1.4a

API compatibility

APIs supported by L20, 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

Benchmark performance

Synthetic benchmark performance of L20. The combined score is measured on a 0-100 point scale.

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