Side-by-side GPU comparison: specs, memory, compute performance, and live cloud pricing.
Verdict
RTX A4000 has 4 GB more VRAM, making it better suited for large models and long context windows. For compute-bound workloads like training, RTX A4000 delivers 1.4× higher FP16 throughput. RTX A4000 supports a broader range of models (502 vs 486 from this catalog), giving more flexibility.
Specifications
| Arc B580 | RTX A4000 | |
|---|---|---|
| VRAM | 12 GB | 16 GB |
| VRAM Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 0.5 TB/s | 0.4 TB/s |
| FP16 Performance | 27 TFLOPS | 39 TFLOPS |
| Manufacturer | Intel | NVIDIA |
| FP8 Support | No | No |
| FP4 Support | No | No |
Price / Performance
Based on cheapest single-GPU on-demand pricing. Lower $/TFLOP = better compute value; lower $/GB = better memory value.
| Arc B580 | RTX A4000 | |
|---|---|---|
| $/hr (cheapest) | — | $0.25 |
| $/TFLOP (compute value) | — | $0.0065 |
| $/GB VRAM (memory value) | — | $0.0156 |
Cloud Pricing
Cheapest on-demand price per provider (single GPU).
Model Compatibility
Models from the catalog that fit on each GPU, grouped by required precision.
Arc B580 (486 models)
RTX A4000 (502 models)
You might also compare…
Pricing data refreshed hourly · Last updated April 11, 2026 · Browse all comparisons