llmrun
IBMGraniteGraniteMoeForCausalLM

Granite 3.1 3B A800m Instruct — Hardware Requirements & GPU Compatibility

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Granite 3.1 3B A800m Instruct is a 3.3B-parameter open language model from IBM in the Granite family. It supports a context window of up to 131,072 tokens. At Q4_K_M it needs about 2.41 GB of VRAM — see which GPUs and Macs can run it below.

3.3B params · MoE0.9B active131K contextApache 2.099.7K downloads32 likes3.8K quant downloads
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Runs great on a 24 GB GPU

Runs from8 GB Q4_K_M · 64KBest on24 GB Q4_K_M · ~364 tok/s · 128KMacs from8 GB Q4_K_M · ~65 tok/s

Apache 2.0

Reference GPU · RTX 4090 24 GB

Estimates, ±20% · how we estimate

Run Granite 3.1 3B A800m Instruct

One recommended way. Every other method, OS and quant is in the step-by-step guide.Each way opens a step-by-step guide for your OS and quant.

Recommended

Ollama
one command · needs Ollama installed
$ollama run hf.co/bartowski/granite-3.1-3b-a800m-instruct-GGUF:Q4_K_M

Q4_K_M fits fully on the RTX 4090 · 20.6 GB free · 16K context

Download: granite-3.1-3b-a800m-instruct-Q4_K_M.gguf2.02 GBbartowski

install, OS, other quants

Ways to runOther ways

each opens step-by-step

Run in cloud

Runs on RTX 3060 12GB (8 GB headroom) · Q4_K_M

Generation speed
~221 tok/s
generation speed
Cost per 1M output tokens
$0.077
per 1M output tokens

How Much VRAM Does Granite 3.1 3B A800m Instruct Need?

Select a quantization level; the listed hardware adheres to it.

QuantizationVRAM+32KOn RTX 4090 (reference)
1.8 GB3.9 GB2-bit · K-quant — 2-bit quantization with K-quant improvementsFits: 128K context · ~398 tok/s
1.9 GB3.9 GB3-bit small — 3-bit small quantizationFits: 128K context · ~396 tok/s
2.0 GB4.1 GB3-bit medium — 3-bit medium quantizationFits: 128K context · ~386 tok/s
2.1 GB4.1 GB4-bit · legacy — 4-bit legacy quantizationFits: 128K context · ~383 tok/s
2.4 GB4.4 GB4-bit medium — 4-bit medium quantization — most popular sweet spotFits: 128K context · ~364 tok/s
2.8 GB4.8 GB5-bit medium — 5-bit medium quantization — good quality/size tradeoffFits: 128K context · ~345 tok/s
3.2 GB5.2 GB6-bit, very good — 6-bit quantization, very good qualityFits: 128K context · ~328 tok/s
3.7 GB5.7 GB8-bit, near-lossless — 8-bit quantization, near-losslessFits: 128K context · ~305 tok/s

Selected Q4_K_M

4-bit medium quantization

3.4GBat 16K context

Weights
2.0 GB
KV cache
1.1 GB
Overhead
0.3 GB

Fits RTX 4090 (reference) · 20.7 GB free · ~364 tok/s

≥50 tok/s needs ≥54 GB/s · RTX 5090 ~432, RTX 3090 Ti ~364

Which Hardware Can Run Granite 3.1 3B A800m Instruct?

Q4_K_M · 2.4 GB

Granite 3.1 3B A800m Instruct (Q4_K_M) requires 2.4 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 4+ GB is recommended. Using the full 131K context window can add up to 8.5 GB, bringing total usage to 10.9 GB. 52 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti. 163 devices with unified memory can run Granite 3.1 3B A800m Instruct, including NVIDIA DGX Spark, NVIDIA Jetson AGX Thor Developer Kit.

By VRAM tier · typical GPUs and Macs at Q4_K_M
8 GB · RTX 4060Q4_K_M · 3.4 GB · ~185 tok/s · 64K8 GB tier →
12 GB · RTX 3060 12GBQ4_K_M · 3.4 GB · ~221 tok/s · 128K12 GB tier →
16 GB · RTX 5060 Ti 16GBQ4_K_M · 3.4 GB · ~252 tok/s · 128K16 GB tier →
24 GB · RTX 4090referenceQ4_K_M · 3.4 GB · ~364 tok/s · 128K24 GB tier →
Mac 32 GB · Mac Mini M4Q4_K_M · 3.4 GB · ~71 tok/s · 128KMacs →
Mac 64 GB · Mac Studio M4 MaxQ4_K_M · 3.4 GB · ~124 tok/s · 128KMacs →

How good is Granite 3.1 3B A800m Instruct?

llmrun Score blends public benchmark boards into one number; 100 = the average open model.

Not enough data yet for an llmrun Score.

A Score needs results on enough independent boards. How the Composite Score is built

Benchmarks

This is the single board showing results for this model; badges show who ran the test.

  • MMLU-Pro

    TIGER-LabIndependent

    25.4%

    #126/146 open

    Independent

Alternatives to Granite 3.1 3B A800m Instruct

Granite family · 28 models →

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6
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Llama 3.2 3B InstructMeta—4.1 GB~309same size
AI21 Jamba Reasoning 3BAI21 Labs—2.3 GB~291same size
Sarashina2.2 3B Instruct v0.1sbintuitions—3.7 GB~247same size

Specifications

Publisher
IBM
Family
Granite
Parameters
3.3B
Active parameters
0.9B per token
Architecture
GraniteMoeForCausalLM
Context Length
131,072 tokens
Vocabulary Size
49,155
Release Date
2024-12-06
License
Apache 2.0

Frequently Asked Questions

How much VRAM does Granite 3.1 3B A800m Instruct need?

Granite 3.1 3B A800m Instruct requires 2.4 GB of VRAM at Q4_K_M, or 7.0 GB at BF16. Full 131K context adds up to 8.5 GB (10.9 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 3.3B × 4.8 bits ÷ 8 = 2 GB

KV Cache + Overhead ≈ 0.4 GB (at 2K context + ~0.3 GB framework)

Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.

KV Cache + Overhead ≈ 8.9 GB (at full 131K context)

VRAM usage by quantization

2.4 GB
10.9 GB

Learn more about VRAM estimation →

What's the best quantization for Granite 3.1 3B A800m Instruct?

For Granite 3.1 3B A800m Instruct, Q4_K_M (2.4 GB) offers the best balance of quality and VRAM usage. Q4_K_L (2.5 GB) provides better quality if you have the VRAM. The smallest option is IQ3_XS at 1.8 GB.

VRAM requirement by quantization

IQ3_XS
1.8 GB
Q3_K_M
2.0 GB
Q4_K_S
2.3 GB
Q4_K_M ★
2.4 GB
Q5_K_M
2.8 GB
BF16
7.0 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Granite 3.1 3B A800m Instruct on a Mac?

Yes — MacBook Air 13" M3 (8 GB) and 145 other Macs can run Granite 3.1 3B A800m Instruct. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 2.4 GB of usable unified memory (RAM minus macOS overhead).

Can I run Granite 3.1 3B A800m Instruct locally?

Yes — Granite 3.1 3B A800m Instruct can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Granite 3.1 3B A800m Instruct?

At Q4_K_M, Granite 3.1 3B A800m Instruct can reach ~153 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~364 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

tok/s = 1000 ÷ (active GB ÷ (bandwidth GB/s × efficiency) × 1000 + layers × routing ms)

Mixture-of-Experts: just the active experts get read for each token, along with a fixed routing cost per layer.

Example: NVIDIA B200 → 0.6 GB active ÷ (8000 × 0.65) = 0.124 ms, plus 32 layers × 0.055 ms = 1.760 ms, so 1000 ÷ 1.884 ms = ~531 tok/s

Estimated speed at Q4_K_M (2.4 GB)

~531 tok/s
~364 tok/s
~531 tok/s
~510 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of Granite 3.1 3B A800m Instruct?

At Q4_K_M, the download is about 1.98 GB. The full-precision BF16 version is 6.60 GB. The smallest option (IQ3_XS) is 1.36 GB.

Which GPUs can run Granite 3.1 3B A800m Instruct?

52 consumer GPUs can run Granite 3.1 3B A800m Instruct at Q4_K_M. Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 52 GPUs have plenty of headroom for comfortable inference.

Which devices can run Granite 3.1 3B A800m Instruct?

163 devices with unified memory can run Granite 3.1 3B A800m Instruct at Q4_K_M (2.4 GB), including AMD Ryzen AI 9 HX 370 (Strix Point) Laptop, ASUS Ascent GX10, Beelink GTR9 Pro (Ryzen AI Max+ 395, 128 GB), Framework Desktop (Ryzen AI Max+ 395, 128 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.