GPU comparison

L4 vs RTX 4080

Specifications and current cloud pricing, side by side.

Ada LovelacevsAda LovelaceUpdated 32 days ago

The L4 wins for the most common inference use case because its 121 TFLOPS dense FP16 rating combined with 24 GB VRAM and 72W TDP delivers higher low precision throughput at far lower power than the RTX 4080.

L4 listed from $0.59/GPU/hrRTX 4080 listed from $0.50/GPU/hr

Right now, from live stock

Specifications Compared

SpecL4RTX 4080
TDP72W320W
VRAM24 GB16 GB
CUDA Cores7,4249,728
FP8 (dense)242 TFLOPS194.9 TFLOPS
Memory TypeGDDR6GDDR6X
ArchitectureAda LovelaceAda Lovelace
FP16 (dense)121 TFLOPS97.5 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)242 TOPS389.9 TOPS
InterconnectPCIe 4.0PCIe 4.0
Tensor Cores232304
FP32 Performance30.3 TFLOPS48.7 TFLOPS
FP64 Performance0.5 TFLOPSNot published
Memory Bandwidth300 GB/s717 GB/s
FP8 (with sparsity)485 TFLOPS389.8 TFLOPS
FP16 (with sparsity)242 TFLOPS195 TFLOPS
INT8 (with sparsity)485 TOPS779.8 TOPS

Performance Analysis

The ratio of dense FP16 to FP32 equals four times on the L4 and two times on the RTX 4080. This gap indicates the L4 accelerates mixed precision workloads more aggressively than the RTX 4080 during training or inference steps that employ 16 bit formats. Dense FP16 performance favors the L4 at 121 TFLOPS over the RTX 4080 at 97.5 TFLOPS while dense FP32 performance favors the RTX 4080 at 48.7 TFLOPS over the L4 at 30.3 TFLOPS. Memory bandwidth of 717 GB/s on the RTX 4080 exceeds the 300 GB/s rating of the L4 by more than double. Higher bandwidth supports larger batch sizes in memory bound kernels. The L4 24 GB VRAM capacity exceeds the RTX 4080 16 GB capacity and may offset some bandwidth limits when models fit within the extra memory.

Current On-Demand Offers

Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.

L4

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
RunPodglobal1$0.59—Deploy
ScalewayWarsaw, Poland (WAW2)2$0.89$1.77Deploy

2 providers in stock, 4 offers (cheapest per provider shown). All L4 offers, price history and alerts

RTX 4080

RTX 4080 is not offered on-demand by any provider we track right now. See the RTX 4080 rental page for last-seen listed prices and a price alert.

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When to Choose the L4

The L4 suits power limited inference clusters that require 24 GB VRAM and 72W TDP. Its 121 TFLOPS dense FP16 rating exceeds the RTX 4080 dense FP16 rating and pairs with lower overall energy draw for sustained operation.

When to Choose the RTX 4080

The RTX 4080 suits bandwidth sensitive training tasks that require 48.7 TFLOPS FP32 and 717 GB/s memory bandwidth. Its higher FP32 rating and bandwidth advantage support workloads that exceed the L4 30.3 TFLOPS FP32 and 300 GB/s limits.

Use Cases

LLM Training
RTX 4080

The RTX 4080 supplies 48.7 TFLOPS FP32 compared with 30.3 TFLOPS FP32 on the L4.

LLM Inference
L4

The L4 supplies 121 TFLOPS dense FP16 compared with 97.5 TFLOPS dense FP16 on the RTX 4080.

Fine-tuning
L4

The L4 supplies 24 GB VRAM and 121 TFLOPS dense FP16 for efficient low precision updates.

Stable Diffusion
RTX 4080

The RTX 4080 supplies 717 GB/s bandwidth that supports larger image batches than the L4 300 GB/s.

Scientific Computing
RTX 4080

The RTX 4080 supplies 48.7 TFLOPS FP32 that exceeds the L4 30.3 TFLOPS FP32 rating.

Frequently Asked Questions

What are the TDP values for the L4 and RTX 4080?▾

The L4 TDP equals 72W while the RTX 4080 TDP equals 320W.

How does memory bandwidth compare between the two cards?▾

The L4 reaches 300 GB/s while the RTX 4080 reaches 717 GB/s.

What FP32 performance do the GPUs deliver?▾

The L4 delivers 30.3 TFLOPS FP32 while the RTX 4080 delivers 48.7 TFLOPS FP32.

Do both GPUs use the same interconnect?▾

Both the L4 and RTX 4080 use PCIe 4.0 interconnect.

Which is cheaper to rent, the L4 or the RTX 4080?▾

Cloud rental prices for both the L4 and RTX 4080 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.

How much VRAM does the L4 have compared to the RTX 4080?▾

The L4 has 24 GB of GDDR6 memory. The RTX 4080 has 16 GB of GDDR6X memory.

Can I find L4 and RTX 4080 GPUs available to rent right now?▾

Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.

What is the main difference between the L4 and the RTX 4080?▾

The L4 uses the Ada Lovelace architecture (2023) while the RTX 4080 uses Ada Lovelace (2022). The L4 delivers 1.2x the dense FP16 throughput (121 vs 97.5 TFLOPS, both without sparsity) while the RTX 4080 has 2.4x the memory bandwidth of the L4.

Rent these GPUs

Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.

Related comparisons

How this page is made

  • Specifications come from the NVIDIA, AMD and Intel datasheets for the L4 and the RTX 4080. Dense and sparse throughput are listed separately.
  • Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
  • The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
  • Read how we collect the data, or report an error on this page.

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