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Voltarum Local LLM Hardware Guide

Intel · Intel GPUs · 2025

Intel Arc Pro B50

Good budget option

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

Memory
16 GB
Bandwidth
224 GB/s
Power
70 W
Largest popular model at 4-bit
gpt-oss-20b

from $349 (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 / 16 GB · with 16 GB
≤ 202 tok/s
Qwen3.5 9BRuns
8.3 GB / 16 GB · with 16 GB
≤ 39 tok/s
Gemma 4 12BRuns
9.5 GB / 16 GB · with 16 GB
≤ 31 tok/s
gpt-oss-20bRuns
14 GB / 16 GB · with 16 GB
≤ 112 tok/s
Qwen3.6 27BNot enough memory
20 GB / 16 GB · with 16 GB
—
Qwen3.6 35B A3BPartly in system RAM
24 GB / 16 GB · with 16 GB
—
Llama 3.3 70BNot enough memory
55 GB / 16 GB · with 16 GB
—
gpt-oss-120bPartly in system RAM
65 GB / 16 GB · with 16 GB
—
Qwen3.5 122B A10BPartly in system RAM
79 GB / 16 GB · with 16 GB
—
Qwen3.5 397B A17BPartly in system RAM
247 GB / 16 GB · with 16 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: Mini towers and NAS boxes where a big card will not fit.

Editorial opinionWould we buy it today?

Yes for tiny or low-power servers; anywhere else a faster card is better value.

Pros and cons

Editorial opinion

Pros

  • 70 W, powered from the slot
  • Low profile, fits small cases
  • 16 GB

Cons

  • 224 GB/s: slow generation
  • Intel software stack

Specifications

Factual data
Manufacturer
Intel
Chip
BMG-G21
Architecture
Xe2 (Battlemage)
Type
Graphics card
Form factor
PCIe card
Released
2025
Availability
On sale
Memory options
16 GB
Memory type
GDDR6
Memory bus
128-bit
Memory bandwidth
224 GB/s
Usable for models (default)
16 GB / 16 GB
Board / max power
70 W
Interface
PCIe 5.0 x8
Slots
2
Power connector
None (slot powered)
Compute stack
SYCL / Vulkan
Models
Any model that fits
Several units for one model
No

Source: Manufacturer specifications

Software support

Editorial opinion

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

  • llama.cppGood
  • OllamaWorks with effort
  • LM StudioGood
  • vLLMWorks with effort
  • 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

NVIDIA GPUs

NVIDIA GeForce RTX 3060 12 GB

Memory
12 GB
Bandwidth
360 GB/s

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

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

from $329 (launch price)Good budget option

NVIDIA GPUs

NVIDIA RTX PRO 4000 Blackwell

Memory
24 GB
Bandwidth
672 GB/s

Largest popular model at 4-bit: Qwen3.6 27B

24 GB in a single-slot, 140 W card: the homelab-friendly way to get 24 GB new.

from $1,500 (typical price)Recommended