Can Falcon H1 Tiny 90M Instruct run on RX 7900 XT 20GB?

Q: What should I upgrade first if Falcon H1 Tiny 90M Instruct feels slow on RX 7900 XT 20GB?

Prioritize bandwidth, not only capacity. If this workload feels slow, the next useful step is often a GPU tier with materially faster memory bandwidth rather than only a small bump in capacity.

YES — Runs Great

D34Poor

Estimated from fit model

Falcon H1 Tiny 90M Instruct needs ~3.1 GB VRAM. RX 7900 XT 20GB has 20.0 GB. With Q4_K_M quantization, expect ~2 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Memory bandwidth

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) — 3.1 GB, 2.0 tok/s, Runs well

3.1 GB required20.0 GB available

16% VRAM used

Fit status

Runs well

Decode

2.0 tok/s

TTFT

96800 ms

Safe context

2.7M

Memory

3.1 GB / 20.0 GB

Memory breakdown

Weights0.1 GB

KV Cache0.1 GB

Runtime0.9 GB

Headroom2.0 GB

See how fast it feels

See how fast it feelsFalcon H1 Tiny 90M Instruct on RX 7900 XT 20GB
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: 2.0 tok/s decode · 96.8s TTFT (warm) · 5 tok/s prefill

What limits this setup

This model fits, but memory bandwidth is the part holding decode speed back.

Throughput will feel slow

Estimated decode speed is only 2.0 tok/s, so this is more of a technical fit than a comfortable daily-driver setup.

Best improvement path

Prioritize bandwidth, not only capacity

If this workload feels slow, the next useful step is often a GPU tier with materially faster memory bandwidth rather than only a small bump in capacity.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	D	Runs well	2.0 tok/s	52800 ms	1.4M
Coding	D	Runs well	2.0 tok/s	96800 ms	2.7M
Agentic Coding	D	Runs well	2.0 tok/s	140800 ms	5.5M
Reasoning	D	Runs well	2.0 tok/s	114400 ms	2.7M
RAG	D	Runs well	2.0 tok/s	176000 ms	5.5M

Quantization options

How Falcon H1 Tiny 90M Instruct (0.09000000357627869B params) fits at each quantization level on RX 7900 XT 20GB (20.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	0.0 GB	Low	C44
Q3_K_S	3	0.0 GB	Low	C44
NVFP4	4

Get started

Copy-paste commands to run Falcon H1 Tiny 90M Instruct on your machine.

Run

lms load hf-tiiuae--falcon-h1-tiny-90m-instruct-gguf && lms server start

Upgrade options

Hardware that runs Falcon H1 Tiny 90M Instruct well

MacBook Pro M4 32GBBudget pick

32 GB Unified (+12)

The model fits in shared memory, but shared-memory bandwidth is now the real limiter.2 tok/s decode

~$799 MSRP

Mac mini M4 32GBBest value

32 GB Unified (+12)

The model fits in shared memory, but shared-memory bandwidth is now the real limiter.2 tok/s decode

~$1,099 MSRP

Frequently asked questions

Can RX 7900 XT 20GB run Falcon H1 Tiny 90M Instruct?

Yes, RX 7900 XT 20GB can run Falcon H1 Tiny 90M Instruct with a D grade (Runs well). Expected decode speed: 2.0 tok/s.

How much VRAM does Falcon H1 Tiny 90M Instruct need?

Falcon H1 Tiny 90M Instruct (0.09000000357627869B parameters) requires approximately 3.1 GB of memory with Q4_K_M quantization.

What is the best quantization for Falcon H1 Tiny 90M Instruct?

The recommended quantization for Falcon H1 Tiny 90M Instruct is Q4_K_M, which balances quality and memory efficiency.

What speed will Falcon H1 Tiny 90M Instruct run at on RX 7900 XT 20GB?

On RX 7900 XT 20GB, Falcon H1 Tiny 90M Instruct achieves approximately 2.0 tokens per second decode speed with a time-to-first-token of 96800ms using Q4_K_M quantization.

Can RX 7900 XT 20GB run Falcon H1 Tiny 90M Instruct for coding?

For coding workloads, Falcon H1 Tiny 90M Instruct on RX 7900 XT 20GB receives a D grade with 2.0 tok/s and 2.7M context.

What context window can Falcon H1 Tiny 90M Instruct use on RX 7900 XT 20GB?

On RX 7900 XT 20GB, Falcon H1 Tiny 90M Instruct can safely use up to 2.7M tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RX 7900 XT 20GB See all hardware for Falcon H1 Tiny 90M Instruct

Embed this result▼

Paste this snippet into any page to show a live fit card.

<iframe src="https://willitrunai.com/embed/hf-tiiuae--falcon-h1-tiny-90m-instruct-gguf-on-rx-7900-xt-20gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview: