Can granite 8b code instruct 4k run on RX 5700 XT 8GB?

Q: What should I upgrade first if granite 8b code instruct 4k feels slow on RX 5700 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.

YES — Tight Fit

C52Usable

Estimated from fit model

granite 8b code instruct 4k needs ~7.5 GB VRAM. RX 5700 XT 8GB has 8.0 GB. With Q4_K_M quantization, expect ~48 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, 47.7 tok/s, Tight fit

7.5 GB required8.0 GB available

94% VRAM used

Fit status

Tight fit

Decode

47.7 tok/s

TTFT

4055 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 5700 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: 47.7 tok/s decode · 4.1s TTFT (warm) · 119 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	47.7 tok/s	2212 ms	24K
Coding	C	Tight fit	47.7 tok/s	4055 ms	24K
Agentic Coding	C	Runs with offload (needs ~0.3 GB host RAM)	31.9 tok/s	8836 ms	24K
Reasoning	C	Tight fit	47.7 tok/s	4793 ms	24K
RAG	C	Runs with offload (needs ~0.3 GB host RAM)	31.9 tok/s	11046 ms

Quantization options

How granite 8b code instruct 4k (8B params) fits at each quantization level on RX 5700 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

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

Upgrade options

Hardware that runs granite 8b code instruct 4k well

RX 7700 XT 12GBBudget pick

12 GB VRAM (+4)

Adds memory headroom for longer context windows and future model growth.53.1 tok/s decode

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

~$449 MSRP

RX 6700 XT 12GBBest value

12 GB VRAM (+4)

Adds memory headroom for longer context windows and future model growth.40.9 tok/s decode

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

~$479 MSRP

RX 9070 16GBAMD upgrade

16 GB VRAM (+8)640 GB/s (+192)

Raises estimated decode speed by about 70%.81.3 tok/s decode

Raises estimated decode speed by about 70%.

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

~$479 MSRP

Frequently asked questions

Can RX 5700 XT 8GB run granite 8b code instruct 4k?

Yes, RX 5700 XT 8GB can run granite 8b code instruct 4k with a C grade (Tight fit). Expected decode speed: 47.7 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 5700 XT 8GB?

On RX 5700 XT 8GB, granite 8b code instruct 4k achieves approximately 47.7 tokens per second decode speed with a time-to-first-token of 4055ms using Q4_K_M quantization.

Can RX 5700 XT 8GB run granite 8b code instruct 4k for coding?

For coding workloads, granite 8b code instruct 4k on RX 5700 XT 8GB receives a C grade with 47.7 tok/s and 24K context.

What context window can granite 8b code instruct 4k use on RX 5700 XT 8GB?

On RX 5700 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.

See all results for RX 5700 XT 8GB See all hardware for granite 8b code instruct 4k

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