Which needs less VRAM, Gemma 3 12B IT Heretic v2 or T5gemma B B Ul2 IT?

At BF16, Gemma 3 12B IT Heretic v2 needs 25.4 GB and T5gemma B B Ul2 IT needs 1.3 GB, so T5gemma B B Ul2 IT is the lighter option to run locally.

What is the difference between Gemma 3 12B IT Heretic v2 and T5gemma B B Ul2 IT?

Gemma 3 12B IT Heretic v2 is a 12.2B model from DreamFast (Gemma family), while T5gemma B B Ul2 IT is a 591M model from Google (Gemma family). Compare their VRAM requirements above to see which fits your GPU or Mac.

Gemma 3 12B IT Heretic v2 vs T5gemma B B Ul2 IT

Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.

Gemma 3 12B IT Heretic v2

DreamFast · 12.2B

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T5gemma B B Ul2 IT

Google · 591M

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Specifications

	Gemma 3 12B IT Heretic v2	T5gemma B B Ul2 IT
Parameters	12.2B	591M
Context	131K	—
Architecture	Gemma3ForConditionalGeneration	—
License	Gemma Terms	Gemma Terms
Downloads	8.6K	317
Released	Mar 2026	Jul 2025

VRAM by Quantization: Gemma 3 12B IT Heretic v2 vs T5gemma B B Ul2 IT

Quantization	Bits	Gemma 3 12B IT Heretic v2 VRAM	T5gemma B B Ul2 IT VRAM
BF16	16.00	25.4 GB	1.3 GB

Verdict

T5gemma B B Ul2 IT needs less VRAM at BF16 (1.3 GB vs 25.4 GB), so it fits on smaller GPUs. Gemma 3 12B IT Heretic v2 is the more widely downloaded of the two.

Frequently Asked Questions

Which needs less VRAM, Gemma 3 12B IT Heretic v2 or T5gemma B B Ul2 IT?: At BF16, Gemma 3 12B IT Heretic v2 needs 25.4 GB and T5gemma B B Ul2 IT needs 1.3 GB, so T5gemma B B Ul2 IT is the lighter option to run locally.
What is the difference between Gemma 3 12B IT Heretic v2 and T5gemma B B Ul2 IT?: Gemma 3 12B IT Heretic v2 is a 12.2B model from DreamFast (Gemma family), while T5gemma B B Ul2 IT is a 591M model from Google (Gemma family). Compare their VRAM requirements above to see which fits your GPU or Mac.