Can Granite 3.1 8B run on RX 580 8GB?

YES — With Offload

C43Usable

Estimated from fit model

Granite 3.1 8B needs ~8.5 GB VRAM. RX 580 8GB has 8.0 GB. With Q4_K_M quantization, expect ~18 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: LowStack: StandardBottleneck: Host offload

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) — 8.5 GB, 17.7 tok/s, Runs with offload (needs ~0.3 GB host RAM)

8.5 GB required8.0 GB available

106% VRAM needed

0.5 GB over capacity — needs offload or smaller quantization

Fit status

Runs with offload (needs ~0.3 GB host RAM)

Decode

17.7 tok/s

TTFT

10966 ms

Safe context

12K

Memory

8.5 GB / 8.0 GB

Offload

10%

Memory breakdown

Weights4.9 GB

KV Cache2.0 GB

Runtime0.9 GB

Headroom0.8 GB

See how fast it feels

See how fast it feelsGranite 3.1 8B on RX 580 8GB
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: 17.7 tok/s decode · 11.0s TTFT (warm) · 44 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 0.3 GB of extra host RAM just for the offloaded portion, before OS and other tools.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Tight fit	27.9 tok/s	3787 ms	12K
Coding	C	Runs with offload (needs ~0.3 GB host RAM)	17.7 tok/s	10966 ms	12K
Agentic Coding	F	Too heavy	11.2 tok/s	25082 ms	12K
Reasoning	C	Runs with offload (needs ~0.3 GB host RAM)	17.7 tok/s	12960 ms	12K
RAG	F	Too heavy	11.2 tok/s	31352 ms	12K

Quantization options

How Granite 3.1 8B (8B params) fits at each quantization level on RX 580 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.1 GB	Low	B58
Q3_K_S	3	3.9 GB	Low	B58
NVFP4	4	4.5 GB	Medium	B58
Q4_K_MBest for your GPU	4	4.9 GB	Medium	B57
Q5_K_M	5	5.8 GB	High	F0
Q6_K	6	6.6 GB	High	F0
Q8_0	8	8.6 GB	Very High	F0
F16	16	16.4 GB	Maximum	F0

Get started

Copy-paste commands to run Granite 3.1 8B on your machine.

Run

ollama run granite3.1-dense

Upgrade options

Hardware that runs Granite 3.1 8B well

RX 7600 XT 16GBBudget pick

16 GB VRAM (+8)288 GB/s (+32)

Removes host-memory offload, which is usually the single biggest latency and throughput win.42.3 tok/s decode

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

Raises estimated decode speed by about 139%.

~$329 MSRP

RX 9060 XT 16GBBest value

16 GB VRAM (+8)320 GB/s (+64)

Removes host-memory offload, which is usually the single biggest latency and throughput win.51.1 tok/s decode

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

Raises estimated decode speed by about 189%.

~$349 MSRP

RX 7700 XT 12GBAMD upgrade

12 GB VRAM (+4)432 GB/s (+176)

Removes host-memory offload, which is usually the single biggest latency and throughput win.65.7 tok/s decode

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

Raises estimated decode speed by about 271%.

~$449 MSRP

Frequently asked questions

Can RX 580 8GB run Granite 3.1 8B?

Yes, RX 580 8GB can run Granite 3.1 8B with a C grade (Runs with offload (needs ~0.3 GB host RAM)). Expected decode speed: 17.7 tok/s.

How much VRAM does Granite 3.1 8B need?

Granite 3.1 8B (8B parameters) requires approximately 8.5 GB of memory with Q4_K_M quantization.

What is the best quantization for Granite 3.1 8B?

The recommended quantization for Granite 3.1 8B is Q4_K_M, which balances quality and memory efficiency.

What speed will Granite 3.1 8B run at on RX 580 8GB?

On RX 580 8GB, Granite 3.1 8B achieves approximately 17.7 tokens per second decode speed with a time-to-first-token of 10966ms using Q4_K_M quantization.

Can RX 580 8GB run Granite 3.1 8B for coding?

For coding workloads, Granite 3.1 8B on RX 580 8GB receives a C grade with 17.7 tok/s and 12K context.

What context window can Granite 3.1 8B use on RX 580 8GB?

On RX 580 8GB, Granite 3.1 8B can safely use up to 12K tokens of context. The model's official context limit is 128K, but available memory constrains the safe maximum.

What should I upgrade first if Granite 3.1 8B feels slow on RX 580 8GB?

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.

See all results for RX 580 8GB See all hardware for Granite 3.1 8B

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Preview:

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 0.3 GB of extra host RAM just for the offloaded portion, before OS and other tools.

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Tight fit

27.9 tok/s

3787 ms

12K

Coding

Runs with offload (needs ~0.3 GB host RAM)

17.7 tok/s

10966 ms

12K

Agentic Coding

Too heavy

11.2 tok/s

25082 ms

12K

Reasoning

Runs with offload (needs ~0.3 GB host RAM)

17.7 tok/s

12960 ms

12K

RAG

Too heavy

11.2 tok/s

31352 ms

12K

Quant

Bits

VRAM

Quality

Fit

Q2_K

3.1 GB

Low

B58

Q3_K_S

3.9 GB

Low

B58

NVFP4

4.5 GB

Medium

B58

Q4_K_MBest for your GPU

4.9 GB

Medium

B57

Q5_K_M

5.8 GB

High

Q6_K

6.6 GB

High

Q8_0

8.6 GB

Very High

F16

16.4 GB

Maximum

Frequently asked questions

Can RX 580 8GB run Granite 3.1 8B?

Yes, RX 580 8GB can run Granite 3.1 8B with a C grade (Runs with offload (needs ~0.3 GB host RAM)). Expected decode speed: 17.7 tok/s.

How much VRAM does Granite 3.1 8B need?

Granite 3.1 8B (8B parameters) requires approximately 8.5 GB of memory with Q4_K_M quantization.

What is the best quantization for Granite 3.1 8B?

The recommended quantization for Granite 3.1 8B is Q4_K_M, which balances quality and memory efficiency.

What speed will Granite 3.1 8B run at on RX 580 8GB?

On RX 580 8GB, Granite 3.1 8B achieves approximately 17.7 tokens per second decode speed with a time-to-first-token of 10966ms using Q4_K_M quantization.

Can RX 580 8GB run Granite 3.1 8B for coding?

For coding workloads, Granite 3.1 8B on RX 580 8GB receives a C grade with 17.7 tok/s and 12K context.

What context window can Granite 3.1 8B use on RX 580 8GB?

On RX 580 8GB, Granite 3.1 8B can safely use up to 12K tokens of context. The model's official context limit is 128K, but available memory constrains the safe maximum.

What should I upgrade first if Granite 3.1 8B feels slow on RX 580 8GB?

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.