L4 vs RTX 4080

Ada LovelacevsAda LovelaceUpdated 36 days ago

For prevalent cloud AI inference, L4 emerges as the winner: 121 TFLOPS FP16 and 24 GB VRAM outperform RTX 4080's 48.7 TFLOPS and 16 GB, enabling larger models at efficient 72W. Despite RTX 4080's bandwidth edge, L4's tensor performance and density justify selection for most serving use cases.

L4 from $0.33/hrRTX 4080 from $0.50/hr

Specifications Compared

SpecL4RTX-4080
TDP72W320W
VRAM24 GB16 GB
CUDA Cores7,4249,728
Memory TypeGDDR6GDDR6X
ArchitectureAda LovelaceAda Lovelace
Form FactorsPCIePCIe
InterconnectPCIe 4.0
Tensor Cores232304
FP8 Performance242 TFLOPS
FP16 Performance121 TFLOPS48.7 TFLOPS
FP32 Performance30.3 TFLOPS48.7 TFLOPS
FP64 Performance0.5 TFLOPS
INT8 Performance242 TOPS780 TOPS
Memory Bandwidth300 GB/s717 GB/s

Performance Analysis

L4's FP16 performance of 121 TFLOPS doubles RTX 4080's 48.7 TFLOPS: this advantage accelerates AI training and inference using half-precision formats, common in modern neural networks. The L4's 242 TFLOPS FP8 further enhances quantized inference speeds, unavailable on RTX 4080 specs. Such tensor core efficiencies make L4 preferable for high-throughput serving.

RTX 4080's memory bandwidth of 717 GB/s vastly outpaces L4's 300 GB/s: higher bandwidth enables larger batch sizes in training, minimizing data transfer bottlenecks and improving utilization. Its matched FP16 and FP32 at 48.7 TFLOPS each supports versatile workloads blending graphics and compute, unlike L4's FP32 deficit at 30.3 TFLOPS.

Power and memory profiles differentiate further. L4's 72W TDP allows dense server packing, ideal for scale-out inference, while its 24 GB VRAM handles models exceeding RTX 4080's 16 GB capacity. RTX 4080's 320W draw demands robust cooling but delivers raw throughput for bandwidth-bound tasks.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

L4

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA L4
24GB VRAM
$0.33/GPU/hr
Available
RunPod
RunPod
NVIDIA L4
24GB VRAM
$0.39/GPU/hr
TensorDock
TensorDock
NVIDIA L40S
48GB VRAM
$0.55/GPU/hr
Available
RunPod
RunPod
NVIDIA L40
48GB VRAM
$0.82/GPU/hr
RunPod
RunPod
NVIDIA L40S
48GB VRAM
$0.86/GPU/hr

RTX 4080

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA GeForce RTX 4080 SUPER
16GB VRAM
$0.50/GPU/hr
RunPod
RunPod
NVIDIA GeForce RTX 4080
16GB VRAM
$0.50/GPU/hr

Compare real-time pricing across 25+ providers

When to Choose the L4

The L4 stands out for inference-heavy workloads: 24 GB VRAM accommodates large language models, and 121 TFLOPS FP16 with 242 TFLOPS FP8 ensures rapid low-precision serving. Its 72W TDP enables deployments in power-limited datacenters, fitting 4x more GPUs per rack than RTX 4080's 320W.

Choose L4 for cost-effective density where PCIe 4.0 interconnect suffices, especially at scale across 15 cloud offers averaging $0.68 per hour.

When to Choose the RTX 4080

RTX 4080 excels in training and graphics tasks: 717 GB/s bandwidth supports massive batches, and balanced 48.7 TFLOPS FP16/FP32 handles diverse compute. Lower pricing from $0.11 per hour averaging $0.28 across 8 offers maximizes value for bursty workloads.

Select RTX 4080 for high-throughput scenarios where 16 GB VRAM suffices and 320W TDP aligns with available power.

Use Cases

LLM Training
RTX 4080

RTX 4080's 717 GB/s bandwidth supports larger training batches than L4's 300 GB/s. Balanced 48.7 TFLOPS FP32 aids optimization steps.

LLM Inference
L4

L4's 121 TFLOPS FP16 and 242 TFLOPS FP8 accelerate serving, with 24 GB VRAM fitting bigger models than RTX 4080's 16 GB.

Fine-tuning
L4

L4's 24 GB VRAM handles parameter-heavy fine-tuning without OOM errors. Higher FP16 at 121 TFLOPS speeds iterations over RTX 4080's 48.7 TFLOPS.

Stable Diffusion
RTX 4080

RTX 4080's 717 GB/s bandwidth and consumer optimizations boost image generation throughput. Balanced FP performance suits diffusion pipelines.

Scientific Computing
RTX 4080

RTX 4080's 48.7 TFLOPS FP32 exceeds L4's 30.3 TFLOPS for simulations. Higher bandwidth aids data-intensive HPC workloads.

Frequently Asked Questions

Which GPU has more VRAM, L4 or RTX 4080?

The L4 features 24 GB GDDR6 VRAM, surpassing the RTX 4080's 16 GB GDDR6X. This allows L4 to load larger models for AI tasks. RTX 4080 compensates with faster 717 GB/s bandwidth.

What is the power consumption difference between L4 and RTX 4080?

L4 consumes 72W TDP, far lower than RTX 4080's 320W. Lower TDP enables denser cloud deployments for L4. RTX 4080 requires more cooling infrastructure.

Which is better for AI inference?

L4 leads with 121 TFLOPS FP16 and 242 TFLOPS FP8 versus RTX 4080's 48.7 TFLOPS FP16. Combined with 24 GB VRAM, L4 suits high-volume inference. RTX 4080 fits smaller-scale needs.

How do cloud prices compare for L4 and RTX 4080?

RTX 4080 starts at $0.11 per hour averaging $0.28 across 8 offers, cheaper than L4's $0.32 per hour averaging $0.68 across 15 offers. Pricing reflects availability and demand. RTX 4080 offers better value for cost-sensitive users.

What are the FP32 performance specs?

RTX 4080 delivers 48.7 TFLOPS FP32, higher than L4's 30.3 TFLOPS. This benefits scientific computing on RTX 4080. L4 prioritizes FP16 at 121 TFLOPS instead.

Do L4 and RTX 4080 use the same architecture?

Both utilize Ada Lovelace: L4 from 2023, RTX 4080 from 2022. Shared cores enable similar software compatibility. Differences arise in datacenter versus consumer tuning.

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 2.5x the FP16 throughput and 2.4x the memory bandwidth of the RTX 4080.