RTX 4080 vs RTX A4500: Specs, VRAM & Price
Short answer: choose the RTX A4500 when 20 GB of VRAM is the gating requirement. Choose the RTX 4080 when 16 GB is enough for the workload and the lower hourly rate points that way.
The RTX 4080 has 16 GB of VRAM; the RTX A4500 has 20 GB.
You can rent both by the hour, no purchase required. RTX 4080 from $0.173/GPU/hr; RTX A4500 from $0.209/GPU/hr. The RTX 4080 is 17% cheaper at the entry rate.
RTX 4080
Good for inference and light fine-tuning workloads
RTX A4500
Good for inference and small-scale training workloads
Last updated: 2026-10-10 22:01:07 UTCRefreshes hourly
Specs side by side
| Spec | RTX 4080 | RTX A4500 |
|---|---|---|
| VRAM | 16 GB | 20 GB |
| Memory bandwidth | 716.8 GB/s | – |
| Architecture | Ada Lovelace | Ampere |
| Compute capability | 8.9 | – |
| Precisions in hardware | FP32, FP16, BF16, FP8, INT4 | FP32, FP16, BF16, INT4 |
| Peak FP16/BF16 tensor TFLOPS | 194.9 TFLOPS | – |
| Peak FP8 tensor TFLOPS | 389.9 TFLOPS | – |
| Max board power (TDP) | 320W | – |
| Form factor | PCIe | – |
| Regions | 3 | 1 |
On-demand price
| Rate | RTX 4080 | RTX A4500 |
|---|---|---|
| Lowest per GPU/hr | $0.173/GPU/hr (cheapest overall) | $0.275/GPU/hr |
Which is better for AI: RTX 4080 or RTX A4500?
Choose the RTX A4500 when 20 GB of VRAM is the gating requirement. Choose the RTX 4080 when 16 GB is enough for the workload and the lower hourly rate points that way.
RTX 4080 vs RTX A4500: common questions
Is the RTX 4080 or the RTX A4500 better for AI?
Short answer: choose the RTX A4500 when 20 GB of VRAM is the gating requirement. Choose the RTX 4080 when 16 GB is enough for the workload and the lower hourly rate points that way.
Is the RTX 4080 or the RTX A4500 cheaper to rent?
On Aquanode's live marketplace the RTX 4080 starts at $0.173/GPU/hr (median $0.297/GPU/hr) and the RTX A4500 starts at $0.209/GPU/hr (median $0.242/GPU/hr). The RTX 4080 is the cheaper of the two at the entry rate, by 17%.
What is the difference between the RTX 4080 and the RTX A4500?
The RTX 4080 has 16 GB of VRAM against the RTX A4500's 20 GB; the RTX 4080 is an Ada Lovelace part and the RTX A4500 is Ampere; only the RTX 4080 supports FP8 compute. On price, the RTX 4080 lists from $0.173/GPU/hr and the RTX A4500 from $0.209/GPU/hr.
How widely available are the RTX 4080 and the RTX A4500?
The RTX 4080 is listed in 3 regions and the RTX A4500 in 1 region right now.
How much does 1,000 GPU-hours cost on the RTX 4080 vs the RTX A4500?
At the lowest rates listed today, 1,000 GPU-hours costs $173 on the RTX 4080 and $209 on the RTX A4500, a difference of $36 for the same runtime. Rates are per GPU per hour and update hourly.
How much VRAM does the RTX 4080 have compared to the RTX A4500?
The RTX 4080 has 16 GB of VRAM; the RTX A4500 has 20 GB.
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 RTX 4080 page and RTX A4500 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 RTX 4080 VRAM calculator and the RTX A4500 VRAM calculator, or browse every model by generation in the GPU index.
More RTX 4080 comparisons
More RTX A4500 comparisons
Related reading: RTX 4080 pricing and specs, 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.
