Gemma 3 27B GPU requirements and hosting.
Google's instruction-tuned Gemma checkpoint supports text and image understanding upstream. The current catalog profile is text chat; image serving needs separate validation.
Checkpoint overview.
Model creator
Google DeepMind- Task in catalog
- Chat / reasoning
- Approx. total parameters (catalog)
- 27B
- Runtime families
- ollama
- Model license
- Gemma Terms of Use ↗
- Upstream access at review
- Access approval or acceptance of terms required
- Canonical checkpoint
- google/gemma-3-27b-it ↗
The creator identifies the original checkpoint. Runtime profiles may use separately packaged artifacts; their publishers and configuration can differ. Check the selected profile below.
Configuration matters
Choose a runtime profile.
An upstream multimodal capability does not establish that the catalog profile exposes it. The memory figures below apply only to the stated catalog profile.
- Catalog GPU threshold
- 24 GB
- Configured context
- 8,192 tokens
- Catalog system RAM
- 48 GB
- Runtime
- ollama
- Artifact identifier
gemma3:27b- Precision
- Not pinned in catalog
- Configured concurrency
- 1 request(s)
- Profile inputs / outputs
- text → text
- Deployed artifact revision
- Not verified
Catalog thresholds are configuration guidance, not measured peak memory. A positive GPU requirement is not recorded for every profile; unspecified is not zero. Context, concurrency and runtime overhead can increase memory use. Configured context is a profile setting, not the upstream maximum. Concurrency is configuration, not a load-test result.
Memory components
Account for the whole workload.
ollamagemma3:27b
Total GPU allocation Not established
Weights = 27 billion parameters × 2 bytes. This reference does not describe the selected artifact’s unrecorded precision. Cache and runtime reserve need the exact workload. Band widths are schematic, not memory shares; the separate 24 GB catalog threshold is guidance. A multi-GPU total needs a supported model split and topology.
Weight-only arithmetic and a planning estimate
Using the catalog's approximate 27B total parameters, 16-bit weights alone occupy about 54 GB (parameters × 2 bytes). The shared sizing helper rounds a 20% planning reserve to 65 GB.
This arithmetic does not describe the selected quantized artifact. It excludes a workload-specific KV-cache calculation and cannot guarantee fit at the configured context or concurrency. A mixture-of-experts model still stores its full weights.
See the assumptions →Plan the machine.
Memory-based machine candidate
1× RTX 5090
32 GB total GPU memory · 32 GB per GPU
24 GB sizing figure · 32 GB installed GPU memory. Remaining capacity is not a measured runtime reserve.
This configuration includes 64 GB system RAM. Memory capacity alone does not establish runtime compatibility, latency or throughput.
View this configurationCurrent pricing and availability are shown on the machine page.
Before deployment
Test the workload you need.
For a text workload, compare it with similarly sized text models. For images, test the exact image processor, resolution and runtime path you intend to use.
These are catalog profiles and planning figures. No B3IQ performance measurement or live capacity is claimed. Confirm the artifact, runtime, workload and machine before deployment.
Evidence available
- Upstream identity / license
- Source reviewed
- Runtime settings
- Catalog configuration
- Memory fit
- Guidance; not a measured peak
- B3IQ performance
- No published benchmark
- Installation / live capacity
- Confirm for your machine
Source and access.
- Upstream checkpoint
- google/gemma-3-27b-it ↗
- Upstream license metadata
- Gemma Terms of Use ↗
- Access
- Upstream repository requires access approval or acceptance of terms.
- Reviewed source revision
005ad3404e59d6023443cb575daa05336842228a↗
The reviewed revision identifies the source used for this guide. It is not a claim that this revision is installed on a B3IQ machine. Review the publisher's current license and acceptable-use terms for your application.
Guide updates and corrections.
These are changes to the guide. Source-review dates and workload-test evidence are recorded separately.
- · Update
Added creator attribution and a canonical checkpoint overview. The guide now explains how the original creator differs from a runtime artifact publisher.
To report a correction, send the affected claim and a source URL to hello@b3iq.org.
Continue your evaluation.
Compare another checkpoint or explore a complementary task. Each guide explains the workload it is intended for.
