L4 vs RTX PRO 6000 WS: Specs, VRAM & Price
Short answer: choose the RTX PRO 6000 WS when 96 GB of VRAM is the gating requirement. Choose the L4 when 23 GB is enough for the workload and the lower hourly rate points that way.
The L4 has 23 GB of VRAM; the RTX PRO 6000 WS has 96 GB.
You can rent both by the hour, no purchase required. L4 from $0.485/GPU/hr; RTX PRO 6000 WS from $1.76/GPU/hr. The L4 is 72% cheaper at the entry rate.
L4
Good for inference and light fine-tuning workloads
RTX PRO 6000 WS
Good for training and serving frontier-scale LLMs
Last updated: 2026-10-16 UTCRefreshes every 6 hours
Specs side by side
| Spec | L4 | RTX PRO 6000 WS |
|---|---|---|
| VRAM | 23 GB | 96 GB |
| Memory bandwidth | 300 GB/s | 1,792 GB/s |
| Architecture | Ada Lovelace | Blackwell |
| Compute capability | 8.9 | 12.0 |
| Precisions in hardware | FP32, FP16, BF16, FP8, INT4 | FP32, FP16, BF16, FP8, INT4 |
| Max board power (TDP) | 72W | 600W |
| Regions | 1 | 1 |
On-demand price
| Rate | L4 | RTX PRO 6000 WS |
|---|---|---|
| Lowest per GPU/hr | $0.485/GPU/hr (cheapest overall) | $1.76/GPU/hr (cheapest overall) |
Which is better for AI: L4 or RTX PRO 6000 WS?
Choose the RTX PRO 6000 WS when 96 GB of VRAM is the gating requirement. Choose the L4 when 23 GB is enough for the workload and the lower hourly rate points that way.
L4 vs RTX PRO 6000 WS: common questions
Is the L4 or the RTX PRO 6000 WS better for AI?
Short answer: choose the RTX PRO 6000 WS when 96 GB of VRAM is the gating requirement. Choose the L4 when 23 GB is enough for the workload and the lower hourly rate points that way.
Is the L4 or the RTX PRO 6000 WS cheaper to rent?
On Aquanode's live marketplace the L4 starts at $0.485/GPU/hr (median $0.485/GPU/hr) and the RTX PRO 6000 WS starts at $1.76/GPU/hr (median $2.19/GPU/hr). The L4 is the cheaper of the two at the entry rate, by 72%.
What is the difference between the L4 and the RTX PRO 6000 WS?
The L4 has 23 GB of VRAM against the RTX PRO 6000 WS's 96 GB; the L4 is an Ada Lovelace part and the RTX PRO 6000 WS is Blackwell (compute capability 8.9 vs 12.0); both run BF16, FP8, INT4 workloads in hardware. On price, the L4 lists from $0.485/GPU/hr and the RTX PRO 6000 WS from $1.76/GPU/hr.
How widely available are the L4 and the RTX PRO 6000 WS?
The L4 is listed in 1 region and the RTX PRO 6000 WS in 1 region right now.
How much does 1,000 GPU-hours cost on the L4 vs the RTX PRO 6000 WS?
At the lowest rates listed today, 1,000 GPU-hours costs $485 on the L4 and $1,763 on the RTX PRO 6000 WS, a difference of $1,278 for the same runtime. Rates are per GPU per hour and update hourly.
How much VRAM does the L4 have compared to the RTX PRO 6000 WS?
The L4 has 23 GB of VRAM; the RTX PRO 6000 WS has 96 GB.
Does the L4 or the RTX PRO 6000 WS support NVLink?
Neither the L4 nor the RTX PRO 6000 WS has a dedicated GPU-to-GPU interconnect.
How this comparison is calculated
Every price is normalized to a per-GPU hourly rate using the same pipeline as every other pricing surface on Aquanode, and only the cheapest qualifying offer per provider is shown. A dash means that provider does not currently list that GPU.
Architecture, compute capability and supported precisions come from each vendor's published datasheet for that generation, not from the marketplace feed. This page regenerates at most once per hour.
Memory bandwidth, tensor TFLOPS, NVLink/interconnect and max board power are the same verified-from-datasheet figures shown on each model's own L4 page and RTX PRO 6000 WS page, which link the primary vendor source for that model. A dash here means Aquanode hasn't verified that figure from a primary source yet, never a guess.
Go further
Check what fits in each card's memory with the L4 VRAM calculator and the RTX PRO 6000 WS VRAM calculator, or browse every model by generation in the GPU index.
More L4 comparisons
More RTX PRO 6000 WS comparisons
Related reading: L4 pricing and specs, and The best GPUs for AI, ranked.
