Gemma 3 12B IT Heretic v2 vs Gemma 4 12B IT
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| Gemma 3 12B IT Heretic v2 | Gemma 4 12B IT | |
|---|---|---|
| Parameters | 12.2B | 12.0B |
| Context | 131K | 262K |
| Architecture | Gemma3ForConditionalGeneration | Gemma4UnifiedForConditionalGeneration |
| License | Gemma Terms | Apache 2.0 |
| Downloads | 8.6K | 554.2K |
| Released | Mar 2026 | — |
VRAM by Quantization: Gemma 3 12B IT Heretic v2 vs Gemma 4 12B IT
| Quantization | Bits | Gemma 3 12B IT Heretic v2 VRAM | Gemma 4 12B IT VRAM |
|---|---|---|---|
| Q2_K | 3.40 | 6.2 GB | 6.1 GB |
| Q3_K_M | 3.90 | 7 GB | — |
| Q3_K_S | 3.50 | 6.4 GB | — |
| Q4_0 | 4.00 | 7.2 GB | — |
| Q4_K_M | 4.80 | 8.4 GB | 8.2 GB |
| Q5_K_M | 5.70 | 9.7 GB | — |
| Q6_K | 6.60 | 11.1 GB | 10.9 GB |
| Q8_0 | 8.00 | 13.2 GB | 13.0 GB |
Verdict
Gemma 4 12B IT needs less VRAM at Q4_K_M (8.2 GB vs 8.4 GB), so it fits on smaller GPUs. Gemma 4 12B IT supports a longer context window (262K tokens). Gemma 4 12B IT is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, Gemma 3 12B IT Heretic v2 or Gemma 4 12B IT?
At Q4_K_M, Gemma 3 12B IT Heretic v2 needs 8.4 GB and Gemma 4 12B IT needs 8.2 GB, so Gemma 4 12B IT is the lighter option to run locally.
- Which has a longer context window, Gemma 3 12B IT Heretic v2 or Gemma 4 12B IT?
Gemma 3 12B IT Heretic v2 supports 131,072 tokens and Gemma 4 12B IT supports 262,144 tokens.
- What is the difference between Gemma 3 12B IT Heretic v2 and Gemma 4 12B IT?
Gemma 3 12B IT Heretic v2 is a 12.2B model from DreamFast (Gemma family), while Gemma 4 12B IT is a 12.0B model from Google (Gemma family). Compare their VRAM requirements above to see which fits your GPU or Mac.