Can I Run Bonsai 27B on NVIDIA GeForce RTX 3070?

Written by Jakub Rusinowski · Last updated July 15, 2026

Yes, comfortably — 1-bit Bonsai 27B at 1-bit (binary, ~1.125 bpw) needs 6.3 GB at 8K context (3.8 GB weights + 2.5 GB KV cache/overhead), leaving ~1.7 GB of the NVIDIA GeForce RTX 3070's 8 GB, at ~53 tok/s (est.), with room for up to 8K context.

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Buy this hardware NVIDIA GeForce RTX 3070 8GB — 8 GB VRAM · 220 W board powerDeploy in the cloud now RTX 4090 on RunPod — from $0.34/hr · rate checked 2026-07

or compare on Vast.ai from $0.35/hr (typical low · varies)

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NVIDIA GeForce RTX 3070 8GB
8 GB VRAM · 220 W board power
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NVIDIA GeForce RTX 3070 Specs

VRAM8 GB
Memory Bandwidth448 GB/s

1-bit Bonsai 27B on the NVIDIA GeForce RTX 3070: VRAM by quantization

QuantVRAM neededFits 8 GB?Max contextWhole PC
1-bit (binary, ~1.125 bpw)6.3 GB✓ Yes8K—

Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 8 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Superseded model. Bonsai 27B has been superseded by Ternary Bonsai 2. This page is kept for reference; the newer family is a better starting point. View Ternary Bonsai 2 9B →

Context costs VRAM too. At 1-bit (binary, ~1.125 bpw) on the NVIDIA GeForce RTX 3070: 8K 6.3 GB · 32K 11.6 GB ✗ · 128K 32.5 GB ✗. Past 32K it no longer fits 8 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.

No compatible GPU? 1-bit Bonsai 27B on 16 GB of system RAM, CPU only: runs comfortably.

Bonsai 27B Sizes That Fit the NVIDIA GeForce RTX 3070 (at 8K context)

1-bit Bonsai 27B1-bit (binary, ~1.125 bpw) · 6.3 GB at 8K context · ~53 tok/s (est.)
Buy vs. rent Bonsai 27B
Buy the GPU
~$499
NVIDIA GeForce RTX 3070 · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$499) beats renting at $0.34/hr after about 2.0 years.

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RunPod $0.34/hr
Rent on RunPod →
Vast.ai $0.35/hr · typical low · varies
Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Can I run Bonsai 27B on the NVIDIA GeForce RTX 3070?

Yes, comfortably — 1-bit Bonsai 27B at 1-bit (binary, ~1.125 bpw) needs 6.3 GB at 8K context (3.8 GB weights + 2.5 GB KV cache/overhead), leaving ~1.7 GB of the NVIDIA GeForce RTX 3070's 8 GB, at ~53 tok/s (est.), with room for up to 8K context.

What's the best Bonsai 27B size for the NVIDIA GeForce RTX 3070?

1-bit Bonsai 27B at 1-bit (binary, ~1.125 bpw) quantization needs 6.3 GB at 8K context (3.8 GB weights + 2.5 GB KV cache/overhead), estimated ~53 tokens/sec, up to 8K context.

Every Bonsai 27B size on the NVIDIA GeForce RTX 3070

SizeVRAM at 8KVerdictSpeed
Ternary Bonsai 27B8.3 GBDoes not fit—
1-bit Bonsai 27B6.3 GBRuns~53 tok/s

Bonsai 27B on Other GPUs

Popular Models on the NVIDIA GeForce RTX 3070

VRAM Tier

Troubleshooting

Buying Guide

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