H800 SXM5 vs L40

VS

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
ArchitectureAda Lovelace (2022−2024)Hopper (2022−2023)
GPU code nameAD102GH100
Market segmentWorkstationWorkstation
Release date13 October 2022 (2 years ago)21 March 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 cores1817616896
Core clock speed735 MHz1095 MHz
Boost clock speed2490 MHz1755 MHz
Number of transistors76,300 million80,000 million
Manufacturing process technology4 nm4 nm
Power consumption (TDP)300 Watt700 Watt
Texture fill rate1,414926.6
Floating-point processing power90.52 TFLOPS59.3 TFLOPS
ROPs19224
TMUs568528
Tensor Cores568528
Ray Tracing Cores142no data

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 4.0 x16PCIe 5.0 x16
Length267 mmno data
Width2-slotSXM Module
Supplementary power connectors1x 16-pin8-pin EPS

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 typeGDDR6HBM3
Maximum RAM amount48 GB80 GB
Memory bus width384 Bit5120 Bit
Memory clock speed2250 MHz1313 MHz
Memory bandwidth864.0 GB/s1,681 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 Connectors4x DisplayPort 1.4aNo outputs

API compatibility

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

DirectX12 Ultimate (12_2)N/A
Shader Model6.7N/A
OpenGL4.6N/A
OpenCL3.03.0
Vulkan1.3N/A
CUDA8.99.0

Pros & cons summary


Recency 13 October 2022 21 March 2023
Maximum RAM amount 48 GB 80 GB
Power consumption (TDP) 300 Watt 700 Watt

L40 has 133.3% lower power consumption.

H800 SXM5, on the other hand, has an age advantage of 5 months, and a 66.7% higher maximum VRAM amount.

We couldn't decide between L40 and H800 SXM5. 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.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA L40
L40
NVIDIA H800 SXM5
H800 SXM5

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.9 23 votes

Rate L40 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 6 votes

Rate H800 SXM5 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.