Tiger-Gemma-12B-v3
TheDrummer/Tiger-Gemma-12B-v3Tiger-Gemma-12B-v3 at Q4_K_M is exactly 7,867,147,904 bytes (7.33 GiB / 7.87 GB) — an effective 4.927 bits per weight, not the nominal 4. Its KV cache at 32K is 2.47 GiB, not the 12.00 GiB a flat formula predicts.
Shipped quantizations
| Quant | Size● | Exact bytes● | Effective bpw● | Tensors● | Publisher |
|---|---|---|---|---|---|
| IQ2_S | 4.15 GiB | 4,453,353,344 | 2.789 | — | bartowski |
| IQ2_M | 4.42 GiB | 4,743,104,384 | 2.971 | — | bartowski |
| Q2_K | 4.75 GiB | 5,098,603,904 | 3.193 | — | bartowski |
| IQ3_XXS | 4.86 GiB | 5,217,544,064 | 3.268 | — | bartowski |
| IQ3_XS | 5.25 GiB | 5,638,809,344 | 3.532 | — | bartowski |
| Q3_K_S | 5.49 GiB | 5,890,959,104 | 3.690 | — | bartowski |
| Q2_K_L | 5.66 GiB | 6,081,883,904 | 3.809 | — | bartowski |
| IQ3_M | 5.67 GiB | 6,088,365,824 | 3.813 | — | bartowski |
| Q3_K_M | 6.00 GiB | 6,441,461,504 | 4.035 | — | bartowski |
| Q3_K_L | 6.44 GiB | 6,912,829,184 | 4.330 | — | bartowski |
| IQ4_XS | 6.60 GiB | 7,085,869,184 | 4.438 | — | bartowski |
| IQ4_NL | 6.94 GiB | 7,453,533,824 | 4.668 | — | bartowski |
| Q4_0 | 6.96 GiB | 7,475,652,224 | 4.682 | — | bartowski |
| Q4_K_S | 6.99 GiB | 7,501,702,784 | 4.699 | — | bartowski |
| Q4_K_M | 7.33 GiB | 7,867,147,904 | 4.927 | — | bartowski |
| Q4_1 | 7.63 GiB | 8,188,863,104 | 5.129 | — | bartowski |
| Q4_K_L | 8.02 GiB | 8,614,440,704 | 5.395 | — | bartowski |
| Q5_K_S | 8.31 GiB | 8,924,192,384 | 5.589 | — | bartowski |
| Q5_K_M | 8.51 GiB | 9,137,266,304 | 5.723 | — | bartowski |
| Q5_K_L | 9.09 GiB | 9,758,699,264 | 6.112 | — | bartowski |
| Q6_K | 9.77 GiB | 10,486,767,104 | 6.568 | — | bartowski |
| Q6_K_L | 10.22 GiB | 10,974,473,984 | 6.874 | — | bartowski |
| Q8_0 | 12.65 GiB | 13,580,021,504 | 8.505 | — | bartowski |
| BF16 | 23.80 GiB | 25,553,909,216 | 16.005 | — | bartowski |
KV cache by context
| Context | KV cache (f16)● | Flat formula | Overstated by | Full / windowed / recurrent |
|---|---|---|---|---|
| 4,096 | 0.72 GiB | 1.50 GiB | 2.09× | 8 / 40 / 0 |
| 8,192 | 0.97 GiB | 3.00 GiB | 3.10× | 8 / 40 / 0 |
| 16,384 | 1.47 GiB | 6.00 GiB | 4.09× | 8 / 40 / 0 |
| 32,768 | 2.47 GiB | 12.00 GiB | 4.86× | 8 / 40 / 0 |
| 65,536 | 4.47 GiB | 24.00 GiB | 5.37× | 8 / 40 / 0 |
| 131,072 | 8.47 GiB | 48.00 GiB | 5.67× | 8 / 40 / 0 |
40 of 48 layers cache only a 1,024-token window rather than the full context, on a period of 6. Figures assume the default configuration; --swa-full disables the saving entirely.
Compare with
Will it run on your card?
Why other calculators give a different number
A parameters × bits ÷ 8 estimate puts Q4_K_M at roughly 6.69 GiB. The real file is 7.33 GiB, because a quantization is a mixture and some tensors are always kept at higher precision. The larger discrepancy is the cache: a flat formula gives 12.00 GiB at 32K context where the real figure is 2.47 GiB, because most of this model's layers cache a fixed window rather than the whole context.
Architecture
Questions people ask
- How much VRAM does Tiger-Gemma-12B-v3 need?
- Q4_K_M is exactly 7,867,147,904 bytes (7.33 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
- How large is Tiger-Gemma-12B-v3's KV cache?
- 2.47 GiB at 32K context with an f16 cache, computed per layer. Quantizing the cache to q8_0 roughly halves it, which is often the difference between a context length fitting and not.
- Which quantization of Tiger-Gemma-12B-v3 should I use?
- Q4_K_M is the usual default. Pick the largest quantization that fits your card at the context you actually need — the table above gives exact sizes for every one published.