L20 vs H100 SXM5

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureHopper (2022−2023)Ada Lovelace (2022−2024)
GPU code nameGH100AD102
Market segmentWorkstationWorkstation
Release date22 March 2022 (2 years ago)16 November 2023 (1 year ago)

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 cores844811776
Core clock speed1065 MHz1440 MHz
Boost clock speed1780 MHz2520 MHz
Number of transistors80,000 million76,300 million
Manufacturing process technology4 nm5 nm
Power consumption (TDP)700 Watt275 Watt
Texture fill rate939.8927.4
Floating-point processing power30.07 TFLOPS59.35 TFLOPS
ROPs24128
TMUs528368
Tensor Cores528368
Ray Tracing Coresno data92

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).

InterfacePCIe 5.0 x16PCIe 4.0 x16
Lengthno data267 mm
Widthno data2-slot
Supplementary power connectors8-pin EPS1x 16-pin

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 typeHBM3GDDR6
Maximum RAM amount80 GB48 GB
Memory bus width5120 Bit384 Bit
Memory clock speed1500 MHz2250 MHz
Memory bandwidth1,920 GB/s864.0 GB/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 ConnectorsNo outputs4x DisplayPort 1.4a

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectXN/A12 Ultimate (12_2)
Shader ModelN/A6.7
OpenGLN/A4.6
OpenCL3.03.0
VulkanN/A1.3
CUDA9.08.9

Pros & cons summary


Recency 22 March 2022 16 November 2023
Maximum RAM amount 80 GB 48 GB
Chip lithography 4 nm 5 nm
Power consumption (TDP) 700 Watt 275 Watt

H100 SXM5 has a 66.7% higher maximum VRAM amount, and a 25% more advanced lithography process.

L20, on the other hand, has an age advantage of 1 year, and 154.5% lower power consumption.

We couldn't decide between H100 SXM5 and L20. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA H100 SXM5
H100 SXM5
NVIDIA L20
L20

Comparisons with similar GPUs

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Community ratings

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4.2 27 votes

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2.7 19 votes

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Questions & comments

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