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Can NVIDIA H100 PCIe 80GB run Stepfun AI Step 3 5 Flash?

Stepfun AI Step 3 5 Flash speed on NVIDIA H100 PCIe 80GB and quantization-level VRAM fit.

Runs Q480GB VRAM availableRequires 2GB+

NVIDIA H100 PCIe 80GB meets the minimum VRAM requirement for Q4 inference of Stepfun AI Step 3 5 Flash. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.

Buy options for NVIDIA H100 PCIe 80GBBest GPU guidesCompare prebuilt systems
Short answer: NVIDIA H100 PCIe 80GB can run Stepfun AI Step 3 5 Flash at Q4 with an estimated 377 tok/s.
Estimated speed
377 tok/s
VRAM needed
2GB
VRAM headroom
+78GB

What this means for you

NVIDIA H100 PCIe 80GB can run Stepfun AI Step 3 5 Flash with Q4 quantization. At approximately 377 tokens/second, you can expect Excellent speed - conversational response times under 1 second.

You have 78GB headroom, which is sufficient for system overhead and smooth operation.

Quantization breakdown

QuantizationVRAM neededVRAM availableEstimated speedVerdict
Q42GB80GB377.12 tok/s✅ Fits comfortably
Q83GB80GB263.98 tok/s✅ Fits comfortably
FP166GB80GB143.30 tok/s✅ Fits comfortably

Suitable alternatives

AMD Instinct MI300X
192GB
915.91 tok/s
Price: —
Fit note: higher estimated speed than the baseline option.
Check Stepfun AI Step 3 5 Flash on AMD Instinct MI300X
NVIDIA H200 SXM 141GB
141GB
827.12 tok/s
Price: —
Fit note: higher estimated speed than the baseline option.
Check Stepfun AI Step 3 5 Flash on NVIDIA H200 SXM 141GB
NVIDIA H100 SXM5 80GB
80GB
594.08 tok/s
Price: —
Fit note: higher estimated speed than the baseline option.
Check Stepfun AI Step 3 5 Flash on NVIDIA H100 SXM5 80GB
AMD Instinct MI250X
128GB
573.07 tok/s
Price: —
Fit note: higher estimated speed than the baseline option.
Check Stepfun AI Step 3 5 Flash on AMD Instinct MI250X
RTX 5090
32GB
359.72 tok/s
Price: —
Fit note: compare VRAM and speed with your target workload before buying.
Check Stepfun AI Step 3 5 Flash on RTX 5090

Compare purchase paths

Direct GPU buy options

Check current pricing links for NVIDIA H100 PCIe 80GB and similar cards.

Open NVIDIA H100 PCIe 80GB buy links →
Curated best GPU guides

Use workload-focused recommendations before committing to a purchase.

Browse best GPU guides →
Prebuilt AI systems

Compare complete systems if you want ready-to-run hardware.

Compare prebuilt systems →

More questions

NVIDIA H100 PCIe 80GB buy options & pricingFull guide for Stepfun AI Step 3 5 FlashBest GPU guides for this modelCompare prebuilt local AI systemsBrowse all model + GPU compatibility checksStepfun AI Step 3 5 Flash Q4 requirementsStepfun AI Step 3 5 Flash Q4_K_M requirementsCan AMD Instinct MI300X run Stepfun AI Step 3 5 Flash?Can NVIDIA H200 SXM 141GB run Stepfun AI Step 3 5 Flash?Can NVIDIA H100 SXM5 80GB run Stepfun AI Step 3 5 Flash?

Compatibility FAQ

Can NVIDIA H100 PCIe 80GB run Stepfun AI Step 3 5 Flash?

NVIDIA H100 PCIe 80GB can run Stepfun AI Step 3 5 Flash at Q4 with an estimated 377 tok/s.

How much VRAM is needed for Stepfun AI Step 3 5 Flash on NVIDIA H100 PCIe 80GB?

Q4 inference is estimated to need about 2GB VRAM on this page, while NVIDIA H100 PCIe 80GB has 80GB available.

What if NVIDIA H100 PCIe 80GB is not enough for Stepfun AI Step 3 5 Flash?

If you need more speed or context headroom, compare alternative GPUs below and check higher-tier VRAM options.