Can granite 8b code instruct 4k run on RX 6600 XT 8GB?

YES — Tight Fit

C50Usable

Estimated from fit model

granite 8b code instruct 4k needs ~7.5 GB VRAM. RX 6600 XT 8GB has 8.0 GB. With Q4_K_M quantization, expect ~26 tok/s.

Runtime: llama.cppCapacity: TightBandwidth: LowStack: StandardBottleneck: Balanced

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) — 7.5 GB, 26.2 tok/s, Tight fit

7.5 GB required8.0 GB available

94% VRAM used

Fit status

Tight fit

Decode

26.2 tok/s

TTFT

7381 ms

Safe context

24K

Memory

7.5 GB / 8.0 GB

Memory breakdown

Weights4.9 GB

KV Cache0.9 GB

Runtime0.9 GB

Headroom0.8 GB

See how fast it feels

See how fast it feelsgranite 8b code instruct 4k on RX 6600 XT 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: 26.2 tok/s decode · 7.4s TTFT (warm) · 66 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

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.

Best improvement path

Buy headroom, not only minimum fit

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

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Tight fit	26.2 tok/s	4026 ms	24K
Coding	C	Tight fit	26.2 tok/s	7381 ms	24K
Agentic Coding	D	Runs with offload (needs ~0.3 GB host RAM)	17.5 tok/s	16082 ms	24K
Reasoning	C	Tight fit	26.2 tok/s	8723 ms	24K
RAG	D	Runs with offload (needs ~0.3 GB host RAM)	17.5 tok/s	20103 ms	24K

Quantization options

How granite 8b code instruct 4k (8B params) fits at each quantization level on RX 6600 XT 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.1 GB	Low	C54
Q3_K_S	3	3.9 GB	Low	C53
NVFP4	4	4.5 GB	Medium	C53
Q4_K_MBest for your GPU	4	4.9 GB	Medium	C53
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 8b code instruct 4k on your machine.

Run

lms load hf-ibm-granite--granite-8b-code-instruct-4k-gguf && lms server start

Opções de upgrade

Hardware que roda bem granite 8b code instruct 4k

RX 9060 XT 16GBOpção econômica

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

Raises estimated decode speed by about 58%.41.3 tok/s decodificação

Raises estimated decode speed by about 58%.

Adds memory headroom for longer context windows and future model growth.

~$349 MSRP

RX 7700 XT 12GBMelhor custo-benefício

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

Raises estimated decode speed by about 103%.53.1 tok/s decodificação

Raises estimated decode speed by about 103%.

Adds memory headroom for longer context windows and future model growth.

~$449 MSRP

RX 6700 XT 12GBUpgrade AMD

12 GB VRAM (+4)384 GB/s (+128)

Raises estimated decode speed by about 56%.40.9 tok/s decodificação

Raises estimated decode speed by about 56%.

Adds memory headroom for longer context windows and future model growth.

~$479 MSRP

Frequently asked questions

Can RX 6600 XT 8GB run granite 8b code instruct 4k?

Yes, RX 6600 XT 8GB can run granite 8b code instruct 4k with a C grade (Tight fit). Expected decode speed: 26.2 tok/s.

How much VRAM does granite 8b code instruct 4k need?

granite 8b code instruct 4k (8B parameters) requires approximately 7.5 GB of memory with Q4_K_M quantization.

What is the best quantization for granite 8b code instruct 4k?

The recommended quantization for granite 8b code instruct 4k is Q4_K_M, which balances quality and memory efficiency.

What speed will granite 8b code instruct 4k run at on RX 6600 XT 8GB?

On RX 6600 XT 8GB, granite 8b code instruct 4k achieves approximately 26.2 tokens per second decode speed with a time-to-first-token of 7381ms using Q4_K_M quantization.

Can RX 6600 XT 8GB run granite 8b code instruct 4k for coding?

For coding workloads, granite 8b code instruct 4k on RX 6600 XT 8GB receives a C grade with 26.2 tok/s and 24K context.

What context window can granite 8b code instruct 4k use on RX 6600 XT 8GB?

On RX 6600 XT 8GB, granite 8b code instruct 4k can safely use up to 24K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

What should I upgrade first if granite 8b code instruct 4k feels slow on RX 6600 XT 8GB?

Buy headroom, not only minimum fit. A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

See all results for RX 6600 XT 8GB See all hardware for granite 8b code instruct 4k

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