Llama 2 70B Chat vs Apertus 70B Instruct 2509
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| Llama 2 70B Chat | Apertus 70B Instruct 2509 | |
|---|---|---|
| Parameters | 70B | 70B |
| Context | — | 66K |
| Architecture | — | ApertusForCausalLM |
| License | Llama 2 Community | Apache 2.0 |
| Downloads | 2 | 4.9K |
| Released | Apr 2024 | Nov 2025 |
VRAM by Quantization: Llama 2 70B Chat vs Apertus 70B Instruct 2509
| Quantization | Bits | Llama 2 70B Chat VRAM | Apertus 70B Instruct 2509 VRAM |
|---|---|---|---|
| Q2_K | 3.40 | 32.7 GB | — |
| Q3_K_M | 3.90 | 37.5 GB | — |
| Q3_K_S | 3.50 | 33.7 GB | — |
| Q4_0 | 4.00 | 38.5 GB | — |
| Q4_K_M | 4.80 | 46.2 GB | — |
| Q5_K_M | 5.70 | 54.9 GB | — |
| Q6_K | 6.60 | 63.5 GB | — |
| Q8_0 | 8.00 | 77 GB | — |
Verdict
Apertus 70B Instruct 2509 is the more widely downloaded of the two.
Frequently Asked Questions
- What is the difference between Llama 2 70B Chat and Apertus 70B Instruct 2509?
Llama 2 70B Chat is a 70B model from Meta (Llama 2 family), while Apertus 70B Instruct 2509 is a 70B model from swiss-ai. Compare their VRAM requirements above to see which fits your GPU or Mac.