FP16240GB VRAM minimum

Openai Gpt Oss 120B FP16 VRAM Requirements

This page answers Openai Gpt Oss 120B fp16 queries with explicit calculations from our model requirement dataset and compatibility speed table.

Short answer

Direct requirement summary for Openai Gpt Oss 120B FP16

Short answer: Openai Gpt Oss 120B typically needs around 240GB VRAM at FP16, and 288GB is safer for smoother usage.

Minimum VRAM

240GB

Recommended VRAM

288GB

Target quantization

FP16

Requirement Snapshot

Current quantization-specific requirement breakdown

Selected quantizationFP16

Minimum VRAM240GB

Q4 baseline60GB

Q8 baseline120GB

FP16 baseline240GB

Methodology

No hand-wavy numbers

Exact FP16 requirement from model requirement data.

Throughput data below uses available compatibility measurements/estimates and is sorted by tokens per second for this model.

Need general guidance? Review full methodology.

Next steps for this requirement

AMD Instinct MI300X

Check full compatibility details and speed context for this model.

Can AMD Instinct MI300X run Openai Gpt Oss 120B? →Buy options for AMD Instinct MI300X →

NVIDIA H200 SXM 141GB

Check full compatibility details and speed context for this model.

Can NVIDIA H200 SXM 141GB run Openai Gpt Oss 120B? →Buy options for NVIDIA H200 SXM 141GB →

NVIDIA H100 SXM5 80GB

Check full compatibility details and speed context for this model.

Can NVIDIA H100 SXM5 80GB run Openai Gpt Oss 120B? →Buy options for NVIDIA H100 SXM5 80GB →

Need GPU recommendations?

Compare curated best GPU guides by budget and workload.

Browse best GPU guides →

Need a complete build?

Use proven local AI build recipes if you are planning a fresh hardware setup.

Browse local AI builds →

Prefer prebuilt systems?

Compare ready-to-buy systems if you want faster deployment.

Compare prebuilt systems →

Compare other quantization tiers for Openai Gpt Oss 120B

Q4 requirements Q4_K_M requirements Q5_K_M requirements Q8 requirements

High-demand speed checks for Openai Gpt Oss 120B

openai gpt oss 120b speed on apple m4 max51 impressions tracked

Best GPUs for Openai Gpt Oss 120B (FP16)

GPU	VRAM	Quantization	Speed	Compatibility	Buy
AMD Instinct MI300X	192GB	FP16	58 tok/s	View full compatibility	Buy options
NVIDIA H200 SXM 141GB	141GB	FP16	52 tok/s	View full compatibility	Buy options
NVIDIA H100 SXM5 80GB	80GB	FP16	38 tok/s	View full compatibility	Buy options
AMD Instinct MI250X	128GB	FP16	36 tok/s	View full compatibility	Buy options
NVIDIA H100 PCIe 80GB	80GB	FP16	24 tok/s	View full compatibility	Buy options
RTX 5090	32GB	FP16	23 tok/s	View full compatibility	Buy options
NVIDIA A100 80GB SXM4	80GB	FP16	22 tok/s	View full compatibility	Buy options
AMD Instinct MI210	64GB	FP16	18 tok/s	View full compatibility	Buy options
NVIDIA A100 40GB PCIe	40GB	FP16	17 tok/s	View full compatibility	Buy options
RTX 4090	24GB	FP16	14 tok/s	View full compatibility	Buy options
NVIDIA RTX 6000 Ada	48GB	FP16	14 tok/s	View full compatibility	Buy options
NVIDIA L40	48GB	FP16	13 tok/s	View full compatibility	Buy options

Back to Openai Gpt Oss 120B model page Full hardware requirements Best GPU guides Prebuilt systems Local AI build guides

VRAM requirements FAQ

How much VRAM does Openai Gpt Oss 120B need at FP16?

Openai Gpt Oss 120B at FP16 is estimated to require about 240GB VRAM minimum, with 288GB recommended for smoother operation.

Which GPUs can run Openai Gpt Oss 120B FP16?

Start with AMD Instinct MI300X, NVIDIA H200 SXM 141GB, NVIDIA H100 SXM5 80GB and review each compatibility page for full speed and fit details.

Should I use FP16 or a different quantization for Openai Gpt Oss 120B?

FP16 is a balance point between memory usage and quality. If your GPU is below 240GB, consider lower-bit quantization; if you have extra VRAM, compare Q8/FP16 options for quality-sensitive workloads.

FP16240GB VRAM minimum

Openai Gpt Oss 120B FP16 VRAM Requirements

This page answers Openai Gpt Oss 120B fp16 queries with explicit calculations from our model requirement dataset and compatibility speed table.

Short answer

Direct requirement summary for Openai Gpt Oss 120B FP16

Short answer: Openai Gpt Oss 120B typically needs around 240GB VRAM at FP16, and 288GB is safer for smoother usage.

Minimum VRAM

240GB

Recommended VRAM

288GB

Target quantization

FP16

Requirement Snapshot

Current quantization-specific requirement breakdown

Selected quantizationFP16

Minimum VRAM240GB

Q4 baseline60GB

Q8 baseline120GB

FP16 baseline240GB

Methodology

No hand-wavy numbers

Exact FP16 requirement from model requirement data.

Throughput data below uses available compatibility measurements/estimates and is sorted by tokens per second for this model.

Need general guidance? Review full methodology.

Next steps for this requirement

AMD Instinct MI300X

Check full compatibility details and speed context for this model.

Can AMD Instinct MI300X run Openai Gpt Oss 120B? →Buy options for AMD Instinct MI300X →

NVIDIA H200 SXM 141GB

Check full compatibility details and speed context for this model.

Can NVIDIA H200 SXM 141GB run Openai Gpt Oss 120B? →Buy options for NVIDIA H200 SXM 141GB →

NVIDIA H100 SXM5 80GB

Check full compatibility details and speed context for this model.

Can NVIDIA H100 SXM5 80GB run Openai Gpt Oss 120B? →Buy options for NVIDIA H100 SXM5 80GB →

Need GPU recommendations?

Compare curated best GPU guides by budget and workload.

Browse best GPU guides →

Need a complete build?

Use proven local AI build recipes if you are planning a fresh hardware setup.

Browse local AI builds →

Prefer prebuilt systems?

Compare ready-to-buy systems if you want faster deployment.

Compare prebuilt systems →

Compare other quantization tiers for Openai Gpt Oss 120B

Q4 requirements Q4_K_M requirements Q5_K_M requirements Q8 requirements

High-demand speed checks for Openai Gpt Oss 120B

openai gpt oss 120b speed on apple m4 max51 impressions tracked

Best GPUs for Openai Gpt Oss 120B (FP16)

GPU	VRAM	Quantization	Speed	Compatibility	Buy
AMD Instinct MI300X	192GB	FP16	58 tok/s	View full compatibility	Buy options
NVIDIA H200 SXM 141GB	141GB	FP16	52 tok/s	View full compatibility	Buy options
NVIDIA H100 SXM5 80GB	80GB	FP16	38 tok/s	View full compatibility	Buy options
AMD Instinct MI250X	128GB	FP16	36 tok/s	View full compatibility	Buy options
NVIDIA H100 PCIe 80GB	80GB	FP16	24 tok/s	View full compatibility	Buy options
RTX 5090	32GB	FP16	23 tok/s	View full compatibility	Buy options
NVIDIA A100 80GB SXM4	80GB	FP16	22 tok/s	View full compatibility	Buy options
AMD Instinct MI210	64GB	FP16	18 tok/s	View full compatibility	Buy options
NVIDIA A100 40GB PCIe	40GB	FP16	17 tok/s	View full compatibility	Buy options
RTX 4090	24GB	FP16	14 tok/s	View full compatibility	Buy options
NVIDIA RTX 6000 Ada	48GB	FP16	14 tok/s	View full compatibility	Buy options
NVIDIA L40	48GB	FP16	13 tok/s	View full compatibility	Buy options

Back to Openai Gpt Oss 120B model page Full hardware requirements Best GPU guides Prebuilt systems Local AI build guides

VRAM requirements FAQ

How much VRAM does Openai Gpt Oss 120B need at FP16?

Openai Gpt Oss 120B at FP16 is estimated to require about 240GB VRAM minimum, with 288GB recommended for smoother operation.

Which GPUs can run Openai Gpt Oss 120B FP16?

Start with AMD Instinct MI300X, NVIDIA H200 SXM 141GB, NVIDIA H100 SXM5 80GB and review each compatibility page for full speed and fit details.

Should I use FP16 or a different quantization for Openai Gpt Oss 120B?

FP16 is a balance point between memory usage and quality. If your GPU is below 240GB, consider lower-bit quantization; if you have extra VRAM, compare Q8/FP16 options for quality-sensitive workloads.