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Voltarum Local LLM Hardware Guide

NVIDIA · NVIDIA GPUs · 2021

NVIDIA GeForce RTX 3060 12 GB

NVIDIA GeForce RTX 3060 12 GB

Photo: Qurren · CC BY-SA 4.0

Good budget option

The cheapest way into CUDA with 12 GB. Slow, but enough for 7–12B models.

Memory
12 GB
Bandwidth
360 GB/s
Power
170 W
Largest popular model at 4-bit
Gemma 4 12B

from $329 (launch price)

Researched from manufacturer data and public sources; not tested by us.· Last reviewed Oct 11, 2026

What it can run

Estimate

Popular models at Q4_K_M with a 32K-token context. Memory needed from real model files; speed is the theoretical ceiling.

Change model size or context

Model weightsContext cache (KV)RuntimeUsable limit (colour = verdict)

ModelVerdictMemorySpeed ceiling
Qwen3 1.7BRuns
6.4 GB / 12 GB · with 12 GB
≤ 324 tok/s
Qwen3.5 9BRuns
8.3 GB / 12 GB · with 12 GB
≤ 63 tok/s
Gemma 4 12BRuns
9.5 GB / 12 GB · with 12 GB
≤ 51 tok/s
gpt-oss-20bPartly in system RAM
14 GB / 12 GB · with 12 GB
—
Qwen3.6 27BNot enough memory
20 GB / 12 GB · with 12 GB
—
Qwen3.6 35B A3BPartly in system RAM
24 GB / 12 GB · with 12 GB
—
Llama 3.3 70BNot enough memory
55 GB / 12 GB · with 12 GB
—
gpt-oss-120bPartly in system RAM
65 GB / 12 GB · with 12 GB
—
Qwen3.5 122B A10BPartly in system RAM
79 GB / 12 GB · with 12 GB
—
Qwen3.5 397B A17BPartly in system RAM
247 GB / 12 GB · with 12 GB
—

Theoretical maximum for generating text: memory bandwidth divided by the bytes read per token. Real runs usually reach about half to three quarters of it.

Where to buy

Prices are editorial references (launch price and a typical street price on the date shown), not live prices. In 2026 the memory shortage has pushed many prices well above launch.

Prices are shown only if updated in the last 24 hours and may change; the retailer’s price at checkout applies. We may earn a commission from these links at no cost to you. Affiliate disclosure

Overview

Editorial opinion

Best for: A low-cost card for Home Assistant voice, small chat models and learning.

Editorial opinionWould we buy it today?

Yes for a small, cheap assistant server; for more headroom go to 16 GB.

Pros and cons

Editorial opinion

Pros

  • Low price for 12 GB with CUDA
  • 170 W, one power connector

Cons

  • 360 GB/s: modest speed
  • 12 GB limits model choice

Specifications

Factual data
Manufacturer
NVIDIA
Chip
GA106
Architecture
Ampere
Type
Graphics card
Form factor
PCIe card
Released
2021
Availability
On sale
Memory options
12 GB
Memory type
GDDR6
Memory bus
192-bit
Memory bandwidth
360 GB/s
Usable for models (default)
12 GB / 12 GB
Board / max power
170 W
Interface
PCIe 4.0 x16
Power connector
8-pin
Compute stack
CUDA
Models
Any model that fits
Several units for one model
Yes

Source: Manufacturer specifications

Software support

Editorial opinion

How well the popular local-AI tools run on it today (editorial assessment).

  • llama.cppExcellent
  • OllamaExcellent
  • LM StudioExcellent
  • vLLMExcellent
  • MLXNot supported

Measured speeds

Factual data

Measured results with their source. We never invent speeds.

No measured results yet. The table above shows the theoretical ceiling instead.

Alternatives

AMD GPUs

AMD Radeon RX 9060 XT 16 GB

Memory
16 GB
Bandwidth
320 GB/s

Largest popular model at 4-bit: gpt-oss-20b

The cheapest new 16 GB card. Slow memory, but it holds what an RTX 5060 Ti holds.

from $349 (launch price)Good budget option

Intel GPUs

Intel Arc Pro B50

Memory
16 GB
Bandwidth
224 GB/s

Largest popular model at 4-bit: gpt-oss-20b

16 GB in a 70 W, low-profile card with no power cable: made for small servers.

from $349 (launch price)Good budget option

Intel GPUs

Intel Arc B580

Memory
12 GB
Bandwidth
456 GB/s

Largest popular model at 4-bit: Gemma 4 12B

12 GB with decent bandwidth for little money; software is the catch.

from $249 (launch price)Good budget option

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