Will It Run AI

Can falcon mamba 7b instruct Q4 K M run on RX 580 8GB?

YES — Tight Fit

C50Usable
Estimated from fit model

falcon mamba 7b instruct Q4 K M needs ~6.8 GB VRAM. RX 580 8GB has 8.0 GB. With Q4_K_M quantization, expect ~30 tok/s.

Runtime: llama.cppCapacity: TightBandwidth: LowStack: StandardBottleneck: Balanced
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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) — 6.8 GB, 29.6 tok/s, Tight fit
6.8 GB required8.0 GB available
85% VRAM used

Fit status

Tight fit

Decode

29.6 tok/s

TTFT

6530 ms

Safe context

40K

Memory

6.8 GB / 8.0 GB

Memory breakdown

Weights4.3 GB
KV Cache0.8 GB
Runtime0.9 GB
Headroom0.8 GB

See how fast it feels

See how fast it feelsfalcon mamba 7b instruct Q4 K M on RX 580 8GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API. When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed. Key benefits of running locally: - Full privacy: your prompts never leave your machine - No per-token cost or rate limits - Works offline once the model is downloaded - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb: Model size Q4 (4-bit) Q8 (8-bit) FP16 7B params ~4.3 GB ~7.5 GB ~14 GB 13B params ~7.9 GB ~13.9 GB ~26 GB 70B params ~42.7 GB ~74.9 GB ~140 GB Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 29.6 tok/s decode · 6.5s TTFT (warm) · 74 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

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

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatCRuns well29.6 tok/s3562 ms40K
CodingCTight fit29.6 tok/s6530 ms40K
Agentic CodingCRuns with offload29.6 tok/s9498 ms40K
ReasoningCTight fit29.6 tok/s7718 ms40K
RAGCRuns with offload29.6 tok/s11873 ms40K

Quantization options

How falcon mamba 7b instruct Q4 K M (7B params) fits at each quantization level on RX 580 8GB (8.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
2.7 GB
LowC53
Q3_K_S
3
3.4 GB
LowC53
NVFP4
4
3.9 GB
MediumC53
Q4_K_M
4
4.3 GB
MediumC53
Q5_K_MBest for your GPU
5
5.0 GB
HighC53
Q6_K
6
5.7 GB
HighF0
Q8_0
8
7.5 GB
Very HighF0
F16
16
14.3 GB
MaximumF0

Get started

Copy-paste commands to run falcon mamba 7b instruct Q4 K M on your machine.

Run

lms load hf-tiiuae--falcon-mamba-7b-instruct-q4-k-m-gguf && lms server start

Opciones de mejora

Hardware que ejecuta bien falcon mamba 7b instruct Q4 K M

RX 9060 XT 16GBOpción económica
16 GB VRAM (+8)320 GB/s (+64)
C
Sube la velocidad estimada de decodificación alrededor de un 83%.54.3 tok/s decodificación

Sube la velocidad estimada de decodificación alrededor de un 83%.

Añade margen de memoria para más contexto y para que el modelo envejezca mejor.

~$349 MSRP

RX 7700 XT 12GBMejor relación calidad-precio
12 GB VRAM (+4)432 GB/s (+176)
C
Sube la velocidad estimada de decodificación alrededor de un 136%.69.8 tok/s decodificación

Sube la velocidad estimada de decodificación alrededor de un 136%.

Añade margen de memoria para más contexto y para que el modelo envejezca mejor.

~$449 MSRP

RX 6700 XT 12GBMejora AMD
12 GB VRAM (+4)384 GB/s (+128)
C
Sube la velocidad estimada de decodificación alrededor de un 82%.53.8 tok/s decodificación

Sube la velocidad estimada de decodificación alrededor de un 82%.

Añade margen de memoria para más contexto y para que el modelo envejezca mejor.

~$479 MSRP

Frequently asked questions

Can RX 580 8GB run falcon mamba 7b instruct Q4 K M?

Yes, RX 580 8GB can run falcon mamba 7b instruct Q4 K M with a C grade (Tight fit). Expected decode speed: 29.6 tok/s.

How much VRAM does falcon mamba 7b instruct Q4 K M need?

falcon mamba 7b instruct Q4 K M (7B parameters) requires approximately 6.8 GB of memory with Q4_K_M quantization.

What is the best quantization for falcon mamba 7b instruct Q4 K M?

The recommended quantization for falcon mamba 7b instruct Q4 K M is Q4_K_M, which balances quality and memory efficiency.

What speed will falcon mamba 7b instruct Q4 K M run at on RX 580 8GB?

On RX 580 8GB, falcon mamba 7b instruct Q4 K M achieves approximately 29.6 tokens per second decode speed with a time-to-first-token of 6530ms using Q4_K_M quantization.

Can RX 580 8GB run falcon mamba 7b instruct Q4 K M for coding?

For coding workloads, falcon mamba 7b instruct Q4 K M on RX 580 8GB receives a C grade with 29.6 tok/s and 40K context.

What context window can falcon mamba 7b instruct Q4 K M use on RX 580 8GB?

On RX 580 8GB, falcon mamba 7b instruct Q4 K M can safely use up to 40K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RX 580 8GBSee all hardware for falcon mamba 7b instruct Q4 K M
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