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HardwareLadder
AI GPU ladder

NVIDIAAI GPU · PCIe

L40

NVIDIA L40 is a Ada Lovelace data-center accelerator with 48 GB GDDR6 and 0.864 TB/s of memory bandwidth.

Ladder rank
#19
AI index (H100 SXM = 100)
21.7
Series
Ada Lovelace

Specifications

Dense throughput, no sparsity
Architecture Ada Lovelace
Form factor PCIe
Process TSMC 4N
FP16 / BF16 tensor (dense) 181 TFLOPS
FP8 tensor (dense) —
FP4 tensor (dense) —
Memory 48 GB GDDR6
Memory bandwidth 0.864 TB/s
Power 300 W
Launch Oct 2022

AI index

Tensor × bandwidth

100 × √((181 ÷ 989.4) × (0.864 ÷ 3.35)) = 21.7

The AI index is the geometric mean of dense 16-bit tensor throughput and memory bandwidth, each relative to the H100 SXM. It is a spec-sheet comparison, not a measured benchmark.

Sources

2 references