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URL: https://willitrunai.com/can-run/granite-4.1-3b-on-gtx-1650-4gb


Can Granite 4.1 3B run on GTX 1650 4GB?

BARELY — Tight on Memory

B56Good
Estimated from fit model

Granite 4.1 3B needs ~4.4 GB VRAM. GTX 1650 4GB has 4.0 GB. With Q4_K_M quantization, expect ~21 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: Very lowStack: StandardBottleneck: Host offload
Share:

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 4.4 GB, 22.9 tok/s, Very compromised (needs ~0.1 GB host RAM)
4.4 GB required4.0 GB available
110% VRAM needed

0.4 GB over capacity — needs offload or smaller quantization

Fit status

Very compromised (needs ~0.1 GB host RAM)

Decode

22.9 tok/s

TTFT

8451 ms

Safe context

11K

Memory

4.4 GB / 4.0 GB

Offload

10%

Memory breakdown

Weights1.8 GB
KV Cache1.2 GB
Runtime0.9 GB
Headroom0.4 GB

See how fast it feels

See how fast it feelsGranite 4.1 3B on GTX 1650 4GB
1st promptCold start — includes initialization
>Write a Python function to sort a list
Here's a Python function that sorts a list using quicksort: def quicksort(arr): if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) # Example usage numbers = [3, 6, 8, 10, 1, 2, 1] print(quicksort(numbers)) # [1, 1, 2, 3, 6, 8, 10] The algorithm picks a pivot, partitions the list into smaller, equal, and larger elements, then recursively sorts each partition and concatenates the results.
2nd promptWarm — model ready, no init overhead
>Now add type hints and a docstring
def quicksort(arr: list[int]) -> list[int]: """Sort a list using the quicksort algorithm. Args: arr: List of integers to sort. Returns: A new sorted list. """ if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) Added type hints for the input and return type, plus a Google-style docstring.
Estimated: 22.9 tok/s decode · 8.5s TTFT (warm) · 57 tok/s prefill

What limits this setup

It fits through host-memory offload, and offload is the main reason performance drops.

CPU or host-memory offload is active

About 10% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Older PCIe generation

PCIe 3.0 is workable, but it compounds the penalty when you offload heavily or try to scale across multiple cards.

Best improvement path

Remove offload with more accelerator memory

Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Increase host RAM if you keep offloading

This setup may need roughly {ram} GB of extra host RAM just for the offloaded portion, before OS and other tools.

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatBTight fit37.8 tok/s2796 ms11K
CodingBVery compromised21.2 tok/s9128 ms11K
Agentic CodingFToo heavy13.3 tok/s21160 ms11K
ReasoningBVery compromised (needs ~0.1 GB host RAM)22.9 tok/s9988 ms11K
RAGFToo heavy13.3 tok/s26450 ms11K

Quantization options

How Granite 4.1 3B (3B params) fits at each quantization level on GTX 1650 4GB (4.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
1.2 GB
LowA72
Q3_K_S
3
1.5 GB
LowA72
NVFP4
4

Get started

Copy-paste commands to run Granite 4.1 3B on your machine.

Run

ollama run granite4.1:3b

Upgrade options

Hardware that runs Granite 4.1 3B well

👁 NVIDIA
GTX 1660 Super 6GBBudget pick
6 GB VRAM (+2)336 GB/s (+208)
A
Removes host-memory offload, which is usually the single biggest latency and throughput win.42 tok/s decode

Removes host-memory offload, which is usually the single biggest latency and throughput win.

Raises estimated decode speed by about 83%.

~$229 MSRP

👁 NVIDIA
GTX 1060 6GBBest value
6 GB VRAM (+2)192 GB/s (+64)
A
Removes host-memory offload, which is usually the single biggest latency and throughput win.42 tok/s decode

Removes host-memory offload, which is usually the single biggest latency and throughput win.

Raises estimated decode speed by about 83%.

~$249 MSRP

👁 NVIDIA
RTX 3050 8GBNVIDIA upgrade
8 GB VRAM (+4)224 GB/s (+96)
B
Removes host-memory offload, which is usually the single biggest latency and throughput win.36 tok/s decode

Removes host-memory offload, which is usually the single biggest latency and throughput win.

Raises estimated decode speed by about 57%.

~$249 MSRP

Frequently asked questions

See all results for GTX 1650 4GBSee all hardware for Granite 4.1 3B
1.7 GB
Medium
A72
Q4_K_MBest for your GPU
4
1.8 GB
MediumA72
Q5_K_M
5
2.2 GB
HighF0
Q6_K
6
2.5 GB
HighF0
Q8_0
8
3.2 GB
Very HighF0
F16
16
6.1 GB
MaximumF0

Remove offload with more accelerator memory. Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.