TheDrummer · vision language

Tiger-Gemma-12B-v3

TheDrummer/Tiger-Gemma-12B-v3

Tiger-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.

From the file· summed from 1 file(s)From the file· KV per layer
Parameters
12.8B
Architecture
gemma3
48 layers
Context
131,072
native (config.json)
License

Shipped quantizations

exact bytes, summed from published files
QuantSizeExact bytesEffective bpwTensorsPublisher
IQ2_S4.15 GiB4,453,353,3442.789bartowski
IQ2_M4.42 GiB4,743,104,3842.971bartowski
Q2_K4.75 GiB5,098,603,9043.193bartowski
IQ3_XXS4.86 GiB5,217,544,0643.268bartowski
IQ3_XS5.25 GiB5,638,809,3443.532bartowski
Q3_K_S5.49 GiB5,890,959,1043.690bartowski
Q2_K_L5.66 GiB6,081,883,9043.809bartowski
IQ3_M5.67 GiB6,088,365,8243.813bartowski
Q3_K_M6.00 GiB6,441,461,5044.035bartowski
Q3_K_L6.44 GiB6,912,829,1844.330bartowski
IQ4_XS6.60 GiB7,085,869,1844.438bartowski
IQ4_NL6.94 GiB7,453,533,8244.668bartowski
Q4_06.96 GiB7,475,652,2244.682bartowski
Q4_K_S6.99 GiB7,501,702,7844.699bartowski
Q4_K_M7.33 GiB7,867,147,9044.927bartowski
Q4_17.63 GiB8,188,863,1045.129bartowski
Q4_K_L8.02 GiB8,614,440,7045.395bartowski
Q5_K_S8.31 GiB8,924,192,3845.589bartowski
Q5_K_M8.51 GiB9,137,266,3045.723bartowski
Q5_K_L9.09 GiB9,758,699,2646.112bartowski
Q6_K9.77 GiB10,486,767,1046.568bartowski
Q6_K_L10.22 GiB10,974,473,9846.874bartowski
Q8_012.65 GiB13,580,021,5048.505bartowski
BF1623.80 GiB25,553,909,21616.005bartowski

KV cache by context

computed per layer — this model uses sliding-window attention
ContextKV cache (f16)Flat formulaOverstated byFull / windowed / recurrent
4,0960.72 GiB1.50 GiB2.09×8 / 40 / 0
8,1920.97 GiB3.00 GiB3.10×8 / 40 / 0
16,3841.47 GiB6.00 GiB4.09×8 / 40 / 0
32,7682.47 GiB12.00 GiB4.86×8 / 40 / 0
65,5364.47 GiB24.00 GiB5.37×8 / 40 / 0
131,0728.47 GiB48.00 GiB5.67×8 / 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

same modality, comparable size

Will it run on your card?

full quant x context sweep

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

from config.json
Layers
48
Attention heads
16
KV heads
8
Head dim
256
Hidden size
3840
Vocab
262,208
Sliding window
1024
SWA period
6
MLA
no
Experts
Experts per token
use_sliding_window

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.