Can the RTX 5080 Run Gemma 2?
Yes for the 2B and 9B INT4. Gemma 2 9B at FP16 doesn’t quite fit the 5080’s 16 GB; FP8 or INT4 is the practical path.
Yes — at INT4The RTX 5080 (16 GB) does not fit Gemma 2 9B at FP16 (18 GB needed), but runs comfortably at INT4 / AWQ (6 GB).
Detailed Breakdown
Gemma 2 9B FP16 needs ~18 GB. The RTX 5080 has 16 GB. The fit fails by 2 GB. Fortunately Blackwell’s hardware FP8 path drops memory pressure to ~9 GB, comfortably fitting the 5080 with KV cache headroom.
- Gemma 2 2B FP16 — 4 GB. Trivial fit.
- Gemma 2 9B FP16 — 18 GB, doesn’t fit the 5080.
- Gemma 2 9B FP8 — 9 GB. Comfortable. Recommended path.
- Gemma 2 9B AWQ-INT4 — 6 GB. Lots of headroom for context.
- Gemma 2 27B — 54 GB FP16, won’t fit. Move to a 6000 Pro.
For latency-sensitive Gemma 2 9B serving, the 5080’s combination of high single-stream throughput and FP8 hardware makes it the best small-form-factor choice in our catalogue.
Frequently Asked Questions
The questions buyers actually ask before committing to a GPU server.
Gemma 2 9B FP8 — quality drop?
Negligible (<1%) on standard benchmarks. FP8 is the recommended deployment path on Blackwell.
Why not just buy a 5090?
The 5080 has lower aggregate throughput but the same single-stream latency. Choose by your concurrency model.
Long context on Gemma 2?
Gemma 2 supports 8K context natively. Fits comfortably on the 5080 at FP8.
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