NVIDIA RTX A4000 GPU: Specs, VRAM, Price & Benchmarks (2026)
The NVIDIA RTX A4000 (16GB GDDR6 with ECC) launched in 2021. This guide covers its full specs, VRAM, SXM/PCIe differences where they apply, AI performance, and live per-GPU rental pricing on Aquanode.
Short answer on cost: the RTX A4000 rents from $0.173 per GPU per hour on Aquanode.
How much VRAM does the RTX A4000 have?
The RTX A4000 has 16GB GDDR6 with ECC, with 448 GB/s of peak memory bandwidth.
What fits in 16GB GDDR6 with ECC of VRAM
| Model | Precision | Fits? |
|---|---|---|
| Llama 3.2 3B | BF16 | roughly 6GB. Fits with plenty of room. |
| Mistral 7B | BF16 | ~14GB. Fits, with almost no KV-cache headroom. |
| Llama 3 8B | INT4 | ~5-6GB. Fits comfortably, room for a real batch. |
| Llama 3.1 70B | INT4 | ~35-40GB. Does not fit on a single 16GB card. |
Approximate, based on published parameter counts and standard bytes-per-parameter rules of thumb (FP16 ≈ 2 bytes/param, INT4 ≈ 0.5-0.6 bytes/param). Real footprint also depends on KV-cache size and framework overhead.
What can the RTX A4000 run?
Popular open models from small to frontier scale, with the memory each needs and how many RTX A4000 cards (16GB GDDR6 with ECC each) that takes.
| Model | As published | FP8 | INT4 |
|---|---|---|---|
| Qwen/Qwen3-8B 8.2B | BF16: ~18.3 GB, 2 GPUs | FP8: not supported | INT4: ~4.6 GB, 1 GPU |
| Qwen/Qwen2.5-14B-Instruct 14.8B | BF16: ~33 GB, 3 GPUs | FP8: not supported | INT4: ~8.3 GB, 1 GPU |
| Qwen/Qwen3-32B 32.8B | BF16: ~73.2 GB, 5 GPUs | FP8: not supported | INT4: ~18.3 GB, 2 GPUs |
| Qwen/Qwen-72B 72.3B | BF16: ~162 GB, 11 GPUs | FP8: not supported | INT4: ~40.4 GB, 3 GPUs |
| MiniMaxAI/MiniMax-M2.7 228.7B | FP8: not supported | – | INT4: ~128 GB, 8 GPUs |
| deepseek-ai/DeepSeek-R1 684.5B | FP8: not supported | – | INT4: ~383 GB, 24 GPUs |
Estimates: weights at the stated precision plus a flat 20% for KV cache and overhead, at a moderate context length. A dash means the precision is not offered for that model (it is already published at that size). INT4 needs a published quantized checkpoint. Open any model for a per-GPU breakdown, or use the RTX A4000 VRAM calculator.
RTX A4000 VRAM calculator: check which models fit in its memory at each precision.
All models that fit in 16 GB: the open models whose weights and overhead fit, at native, FP8 and INT4 precision.
RTX A4000 specs
| Architecture | NVIDIA, launched 2021 |
| VRAM | 16GB GDDR6 with ECC |
| Memory bandwidth | 448 GB/s |
| TDP | 140W |
| Form factor | PCIe, single-slot |
Specs sourced from the vendor's public datasheet/product page. See the source.
Related reading: The NVIDIA Inception program, explained, Google Colab alternatives for dedicated GPU access, Free GPU credits for students and researchers, and RunPod volume disk vs. network volume, compared.
GPU Glossary: What is VRAM?, Tensor Cores, CUDA Cores, TFLOPS
RTX A4000 AI performance
The only single-slot 140W card here with ECC memory. Cheap to rent and dense to rack, and 16GB is enough for small-model serving, embeddings and 7B-class inference in BF16 or INT4.
- Memory bandwidth: 448 GB/s
16GB and 448 GB/s put a hard ceiling on this card: no 70B model fits at any quantization, and no FP8 (Ampere) means quantized serving stops at INT4/INT8. It's an inference card, not a fine-tuning one.
RTX A4000 price: what does it cost?
Renting. The cheapest current on-demand rate for the RTX A4000 on Aquanode is $0.173/GPU/hr (no on-demand supply right now; this is the cheapest offer overall). Live rates range from $0.173 to $0.173 per GPU per hour, with a median of $0.173/GPU/hr. Billed by the offer's own terms; the table below shows every live rate.
| Region | $/GPU/hr | Available | VRAM | vCPU | RAM |
|---|---|---|---|---|---|
| Michigan, Us | $0.173 | 4 | 16 GB | 8 | 31.5 GB |
RTX A4000 price history
Aquanode stores one snapshot of its GPU price index per UTC day. For the RTX A4000 that is 20 days so far, 2026-10-06 to 2026-10-30, so this is a short history, not a long-run trend. The lowest per-GPU rate went from $0.187 on 2026-10-06 to $0.132 on 2026-10-30.
| Day (UTC) | Lowest per GPU hour | Median per GPU hour | Data-center lowest per GPU hour | Offers |
|---|---|---|---|---|
| 2026-10-30 | $0.132 | $0.169 | – | 2 |
| 2026-10-29 | $0.206 | $0.206 | – | 1 |
| 2026-10-28 | $0.191 | $0.191 | – | 1 |
| 2026-10-27 | $0.167 | $0.167 | $0.167 | 1 |
| 2026-10-25 | $0.167 | $0.167 | $0.167 | 1 |
| 2026-10-22 | $0.167 | $0.167 | $0.167 | 1 |
| 2026-10-21 | $0.167 | $0.167 | $0.167 | 1 |
| 2026-10-20 | $0.167 | $0.167 | $0.167 | 1 |
| 2026-10-19 | $0.167 | $0.167 | $0.167 | 1 |
| 2026-10-16 | $0.187 | $0.231 | $0.275 | 16 |
| 2026-10-15 | $0.187 | $0.231 | $0.275 | 16 |
| 2026-10-14 | $0.187 | $0.231 | $0.275 | 16 |
| 2026-10-13 | $0.187 | $0.231 | $0.275 | 16 |
| 2026-10-12 | $0.167 | $0.187 | $0.167 | 17 |
| 2026-10-11 | $0.137 | $0.187 | $0.167 | 18 |
| 2026-10-10 | $0.187 | $0.231 | $0.275 | 16 |
| 2026-10-09 | $0.167 | $0.187 | $0.167 | 19 |
| 2026-10-08 | $0.167 | $0.187 | $0.167 | 20 |
| 2026-10-07 | $0.167 | $0.199 | $0.167 | 18 |
| 2026-10-06 | $0.187 | $0.231 | $0.275 | 16 |
Each row is the stored daily snapshot of the live index, copied as recorded. A dash means that day stored no figure. The same series is available as JSON and summarised in the monthly GPU price report.
How this price is calculated
All prices on this page are normalized to a per-GPU hourly rate using each offer's authoritative GPU count, so that raw price is divided by the number of GPUs it actually covers; some offers report price as already per-GPU, so those are used as-listed. An offer with a missing, zero, or invalid GPU count is excluded entirely rather than published at a guessed rate.
No offers were excluded from this snapshot for a missing or invalid price. No offers were dropped as price outliers in this snapshot.
Only the cheapest qualifying offer per provider is shown in the table above. This page regenerates at most once per hour.
Compare the RTX A4000 with other GPUs
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Get notified when the price drops
GPU supply moves hourly. Tell us what you're waiting for and we'll email you when a matching offer appears across any provider we track.
Rent a RTX A4000 on Aquanode
- On-demand instances from $0.173/GPU/hr, billed by the provider's own terms, with no hardware procurement or long-term commitment.
- 1 live offer across 1 region today.
- Set a price/availability alert above to hear the moment a cheaper or newly-available RTX A4000 offer appears.
- Compare every RTX A4000 offer side by side, or browse the full multi-provider GPU marketplace.
Good for
The only single-slot 140W card here with ECC memory. Cheap to rent and dense to rack, and 16GB is enough for small-model serving, embeddings and 7B-class inference in BF16 or INT4.
Not good for
16GB and 448 GB/s put a hard ceiling on this card: no 70B model fits at any quantization, and no FP8 (Ampere) means quantized serving stops at INT4/INT8. It's an inference card, not a fine-tuning one.
RTX A4000 FAQs
How much VRAM does the RTX A4000 have?
The RTX A4000 has 16GB GDDR6 with ECC, with 448 GB/s of peak memory bandwidth.
What is the NVIDIA RTX A4000?
The NVIDIA RTX A4000 is a GPU released in 2021, with 16GB GDDR6 with ECC of memory and a 140W power envelope. See the full spec table above for interconnect, form factor and tensor-throughput details.
How much does it cost to rent a RTX A4000?
Live RTX A4000 rental prices currently range from $0.173 to $0.173 per GPU per hour, with a median of $0.173 per GPU per hour.
What's the cheapest RTX A4000 rate?
The lowest current RTX A4000 rate on Aquanode is $0.173 per GPU per hour in Michigan, Us.
What is the RTX A4000 good for?
The only single-slot 140W card here with ECC memory. Cheap to rent and dense to rack, and 16GB is enough for small-model serving, embeddings and 7B-class inference in BF16 or INT4.
What are the RTX A4000's limitations?
16GB and 448 GB/s put a hard ceiling on this card: no 70B model fits at any quantization, and no FP8 (Ampere) means quantized serving stops at INT4/INT8. It's an inference card, not a fine-tuning one.
Is renting cheaper than buying?
Renting avoids the upfront hardware cost and lets you match spend to actual usage. A rented RTX A4000 at $0.173/hr only costs money while it's running, whereas buying ties up capital in hardware that keeps depreciating whether it's in use or not. Which is cheaper depends on how continuously you'd run it; short or bursty workloads usually favor renting.
How is the RTX A4000 price calculated?
All prices are normalized to a per-GPU hourly rate using each offer's authoritative GPU count, which the raw price is divided by; some offers report price as already per-GPU. Offers whose price can't be safely normalized, or whose rate is an extreme outlier against the rest of the market, are excluded.
RTX A4000 price by region
Related guides
Other models in the same generation, then the rest of the GPU index.
