Can Solar 7B run on RX 6900 XT 16GB?

YES — Runs Great

A75Great

Estimated from fit model

Solar 7B needs ~9.7 GB VRAM. RX 6900 XT 16GB has 16.0 GB. With Q4_K_M quantization, expect ~68 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: MediumStack: 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) — 9.7 GB, 73.5 tok/s, Runs well

9.7 GB required16.0 GB available

61% VRAM used

Fit status

Runs well

Decode

73.5 tok/s

TTFT

2635 ms

Safe context

Memory

9.7 GB / 16.0 GB

Memory breakdown

Weights4.3 GB

KV Cache2.9 GB

Runtime0.9 GB

Headroom1.6 GB

See how fast it feels

See how fast it feelsSolar 7B on RX 6900 XT 16GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.

Given information:
  - Speed = 60 mph (miles per hour)
  - Time  = 2.5 hours

Formula: Distance = Speed x Time

Calculation:
  Distance = 60 mph x 2.5 h
           = 150 miles

The train travels 150 miles.

Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.

Breakdown:
  - First half: 1.25 hours at 60 mph = 75 miles
  - Stop: 20 minutes (no distance)
  - Second half: 1.25 hours at 60 mph = 75 miles

Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph

The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 73.5 tok/s decode · 2.6s TTFT (warm) · 184 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs well	68.3 tok/s	1545 ms	8K
Coding	A	Runs well	68.3 tok/s	2833 ms	8K
Agentic Coding	A	Runs well	68.3 tok/s	4120 ms	8K
Reasoning	A	Runs well	68.3 tok/s	3348 ms	8K
RAG	A	Runs well	68.3 tok/s	5150 ms	8K

Quantization options

How Solar 7B (7B params) fits at each quantization level on RX 6900 XT 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	B67
Q3_K_S	3	3.4 GB	Low	B68
NVFP4	4

Get started

Copy-paste commands to run Solar 7B on your machine.

Run

lms load Solar-7B && lms server start

Your hardware

More models your RX 6900 XT 16GB can run

Model	Params	Grade	Decode	Capabilities
Qwen 3.5 9B	9B	S	57.1 tok/s
Qwen 3 14B	14B	S	36.9 tok/s

Frequently asked questions

Can RX 6900 XT 16GB run Solar 7B?

Yes, RX 6900 XT 16GB can run Solar 7B with a A grade (Runs well). Expected decode speed: 68.3 tok/s.

How much VRAM does Solar 7B need?

Solar 7B (7B parameters) requires approximately 9.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Solar 7B?

The recommended quantization for Solar 7B is Q4_K_M, which balances quality and memory efficiency.

What speed will Solar 7B run at on RX 6900 XT 16GB?

On RX 6900 XT 16GB, Solar 7B achieves approximately 68.3 tokens per second decode speed with a time-to-first-token of 2833ms using Q4_K_M quantization.

Can RX 6900 XT 16GB run Solar 7B for coding?

For coding workloads, Solar 7B on RX 6900 XT 16GB receives a A grade with 68.3 tok/s and 8K context.

What context window can Solar 7B use on RX 6900 XT 16GB?

On RX 6900 XT 16GB, Solar 7B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

See all results for RX 6900 XT 16GB See all hardware for Solar 7B

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