Can Solar 7B run on RTX 4070 12GB?

YES — Runs Great

A78Great

Estimated from fit model

Solar 7B needs ~9.6 GB VRAM. RTX 4070 12GB has 12.0 GB. With Q4_K_M quantization, expect ~95 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: MediumStack: BasicBottleneck: 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) — 9.6 GB, 95.2 tok/s, Runs well

9.6 GB required12.0 GB available

80% VRAM used

Fit status

Runs well

Decode

95.2 tok/s

TTFT

2034 ms

Safe context

Memory

9.6 GB / 12.0 GB

Memory breakdown

Weights4.3 GB

KV Cache2.9 GB

Runtime1.2 GB

Headroom1.2 GB

See how fast it feels

See how fast it feelsSolar 7B on RTX 4070 12GB
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: 95.2 tok/s decode · 2.0s TTFT (warm) · 238 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	95.2 tok/s	1110 ms	8K
Coding	A	Runs well	95.2 tok/s	2034 ms	8K
Agentic Coding	A	Runs with offload (needs ~0.2 GB host RAM)	65.2 tok/s	4321 ms	8K
Reasoning	A	Runs well	95.2 tok/s	2404 ms	8K
RAG	A	Runs with offload (needs ~0.2 GB host RAM)	65.2 tok/s	5401 ms	8K

Quantization options

How Solar 7B (7B params) fits at each quantization level on RTX 4070 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	B70
Q3_K_S	3	3.4 GB	Low	A70
NVFP4	4	3.9 GB	Medium	A71
Q4_K_M	4	4.3 GB	Medium	A72
Q5_K_M	5	5.0 GB	High	A73
Q6_K	6	5.7 GB	High	A73
Q8_0Best for your GPU	8	7.5 GB	Very High	A72
F16	16	14.3 GB	Maximum	F0

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 RTX 4070 12GB can run

Model	Params	Grade	Decode
Qwen 3.5 9B	9B	S	74 tok/s
Qwen 3 14B	14B	A	28.5 tok/s
Qwen 3 8B	8B	S	83.3 tok/s
Nemotron Nano 8B	8B	S	83.3 tok/s
Ministral 3 14B	14B	A	28.4 tok/s

Frequently asked questions

Can RTX 4070 12GB run Solar 7B?

Yes, RTX 4070 12GB can run Solar 7B with a A grade (Runs well). Expected decode speed: 95.2 tok/s.

How much VRAM does Solar 7B need?

Solar 7B (7B parameters) requires approximately 9.6 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 RTX 4070 12GB?

On RTX 4070 12GB, Solar 7B achieves approximately 95.2 tokens per second decode speed with a time-to-first-token of 2034ms using Q4_K_M quantization.

Can RTX 4070 12GB run Solar 7B for coding?

For coding workloads, Solar 7B on RTX 4070 12GB receives a A grade with 95.2 tok/s and 8K context.

What context window can Solar 7B use on RTX 4070 12GB?

On RTX 4070 12GB, 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 RTX 4070 12GB See all hardware for Solar 7B

Embed this result▼

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<iframe src="https://willitrunai.com/embed/solar-7b-on-rtx-4070-12gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

95.2 tok/s

1110 ms

Coding

Runs well

95.2 tok/s

2034 ms

Agentic Coding

Runs with offload (needs ~0.2 GB host RAM)

65.2 tok/s

4321 ms

Reasoning

Runs well

95.2 tok/s

2404 ms

RAG

Runs with offload (needs ~0.2 GB host RAM)

65.2 tok/s

5401 ms

Quant

Bits

VRAM

Quality

Fit

Q2_K

2.7 GB

Low

B70

Q3_K_S

3.4 GB

Low

A70

NVFP4

3.9 GB

Medium

A71

Q4_K_M

4.3 GB

Medium

A72

Q5_K_M

5.0 GB

High

A73

Q6_K

5.7 GB

High

A73

Q8_0Best for your GPU

7.5 GB

Very High

A72

F16

14.3 GB

Maximum

Model

Params

Grade

Decode

Capabilities

Qwen 3.5 9B

74 tok/s

Qwen 3 14B

14B

28.5 tok/s

Qwen 3 8B

83.3 tok/s

Nemotron Nano 8B

83.3 tok/s

Ministral 3 14B

14B

28.4 tok/s

Frequently asked questions

Can RTX 4070 12GB run Solar 7B?

Yes, RTX 4070 12GB can run Solar 7B with a A grade (Runs well). Expected decode speed: 95.2 tok/s.

How much VRAM does Solar 7B need?

Solar 7B (7B parameters) requires approximately 9.6 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 RTX 4070 12GB?

On RTX 4070 12GB, Solar 7B achieves approximately 95.2 tokens per second decode speed with a time-to-first-token of 2034ms using Q4_K_M quantization.

Can RTX 4070 12GB run Solar 7B for coding?

For coding workloads, Solar 7B on RTX 4070 12GB receives a A grade with 95.2 tok/s and 8K context.

What context window can Solar 7B use on RTX 4070 12GB?

On RTX 4070 12GB, 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.