AI Models for vivo X300 E — What runs on 12GB

vivo X300 E is not officially announced yet — chip and RAM below are consistent leaked specs. This page updates the moment official specs land.
32 great · 17 slow · 46 won't fit
Chip
Snapdragon 8 Gen 5
Memory bandwidth
76.8 GB/s
NPU
RAM options
12 GB
Usable for models
~9 GB
Year
2026

What runs on the vivo X300 E

All 95 models at their recommended quant, on the 12GB configuration. Select any row for the full report.

ModelParamsQuantNeedsSpeedVerdict

~ = bandwidth-based estimate · ✓ = measured on real hardware

Best model by use case

Best for Chat

Top everyday assistant & writing pick here — ~57.6 tokens/s at Q8_0, using 1.3 of ~9GB.

Best for Coding

Top code completion & explain-this pick here — ~18.2 tokens/s at Q4_K_M, using 2.8 of ~9GB.

Best for Reasoning

Top math & step-by-step thinking pick here — ~31.4 tokens/s at Q4_K_M, using 1.9 of ~9GB.

FAQ

What is the biggest AI model the vivo X300 E can run?

Bonsai 27B (1-bit) (27B parameters) at Q1_0 — it needs 4.8GB of the ~9GB usable on the 12GB vivo X300 E and runs at ~9.1 tokens/s.

How much of the vivo X300 E's 12GB RAM can AI models actually use?

About 9GB. Android keeps roughly 2–4GB for the system and resident apps, so of the 12GB about 9GB is actually available to a model.

Can the vivo X300 E run Llama 3.1 8B?

Yes — at Q4_K_M it needs 6.3GB of the ~9GB usable and runs at ~7.1 tokens/s.

How fast is local AI on the vivo X300 E?

The Snapdragon 8 Gen 5 has 76.8GB/s of memory bandwidth, which is what decode speed scales with. Small models like Ternary Bonsai 1.7B reach ~69.1 tokens/s; larger 7–14B models land in the single digits. Anything above ~8 tokens/s feels smooth for chat.

Which quantization should I use on the vivo X300 E?

Q4_K_M is the size/quality sweet spot for most models. For example, Qwen3 0.6B at Q8_0 takes 1.3GB of memory here. Only drop to Q3 or IQ4 if a model just misses fitting; Q8 rarely pays off on 12GB of RAM.

Is 12GB of RAM enough for local AI?

49 of the 95 models we track fit on the vivo X300 E — 32 run great and 17 run with compromises. 46 models (mostly 12B+) don't fit at their recommended quant.

Other vivo phones

vivo X200 Provivo X100 Provivo X300 Provivo X Fold3vivo X Fold3 Provivo X Fold5vivo X Fold6vivo S2vivo V80 Lite 5G (Pakistan)