Can Yi 1.5 34B run on RTX PRO 4500 Blackwell 32GB?

YES — Tight Fit

B63Good

Estimated from fit model

Yi 1.5 34B needs ~28.8 GB VRAM. RTX PRO 4500 Blackwell 32GB has 32.0 GB. With Q4_K_M quantization, expect ~36 tok/s.

Runtime: OllamaCapacity: TightBandwidth: HighStack: 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) — 28.8 GB, 39.4 tok/s, Tight fit

28.8 GB required32.0 GB available

90% VRAM used

Fit status

Tight fit

Decode

39.4 tok/s

TTFT

4914 ms

Safe context

Memory

28.8 GB / 32.0 GB

Memory breakdown

Weights20.7 GB

KV Cache3.7 GB

Runtime1.2 GB

Headroom3.2 GB

See how fast it feels

See how fast it feelsYi 1.5 34B on RTX PRO 4500 Blackwell 32GB
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: 39.4 tok/s decode · 4.9s TTFT (warm) · 99 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	B	Tight fit	39.4 tok/s	2680 ms	4K
Coding	B	Tight fit	36.3 tok/s	5335 ms	4K
Agentic Coding	B	Runs with offload (needs ~0.3 GB host RAM)	29.3 tok/s	9625 ms	4K
Reasoning	B	Tight fit	39.4 tok/s	5807 ms	4K
RAG	B	Runs with offload (needs ~0.3 GB host RAM)	29.3 tok/s	12031 ms

Quantization options

How Yi 1.5 34B (34B params) fits at each quantization level on RTX PRO 4500 Blackwell 32GB (32.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	13.3 GB	Low	B61
Q3_K_S	3	16.7 GB	Low	B62
NVFP4	4

Get started

Copy-paste commands to run Yi 1.5 34B on your machine.

Run

lms load Yi-1.5-34B-Chat && lms server start

Upgrade options

Hardware that runs Yi 1.5 34B well

RTX A6000 48GBBudget pick

48 GB VRAM (+16)

Adds memory headroom for longer context windows and future model growth.30.6 tok/s decode

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

~$4,650 MSRP

RTX PRO 5000 Blackwell 48GBBest value

48 GB VRAM (+16)1344 GB/s (+448)

Raises estimated decode speed by about 50%.59.1 tok/s decode

Raises estimated decode speed by about 50%.

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

~$4,999 MSRP

NVIDIA L40 48GBNVIDIA upgrade

48 GB VRAM (+16)

Adds memory headroom for longer context windows and future model growth.35.3 tok/s decode

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

~$5,500 MSRP

Frequently asked questions

Can RTX PRO 4500 Blackwell 32GB run Yi 1.5 34B?

Yes, RTX PRO 4500 Blackwell 32GB can run Yi 1.5 34B with a B grade (Tight fit). Expected decode speed: 36.3 tok/s.

How much VRAM does Yi 1.5 34B need?

Yi 1.5 34B (34B parameters) requires approximately 28.8 GB of memory with Q4_K_M quantization.

What is the best quantization for Yi 1.5 34B?

The recommended quantization for Yi 1.5 34B is Q4_K_M, which balances quality and memory efficiency.

What speed will Yi 1.5 34B run at on RTX PRO 4500 Blackwell 32GB?

On RTX PRO 4500 Blackwell 32GB, Yi 1.5 34B achieves approximately 36.3 tokens per second decode speed with a time-to-first-token of 5335ms using Q4_K_M quantization.

Can RTX PRO 4500 Blackwell 32GB run Yi 1.5 34B for coding?

For coding workloads, Yi 1.5 34B on RTX PRO 4500 Blackwell 32GB receives a B grade with 36.3 tok/s and 4K context.

What context window can Yi 1.5 34B use on RTX PRO 4500 Blackwell 32GB?

On RTX PRO 4500 Blackwell 32GB, Yi 1.5 34B can safely use up to 4K tokens of context. The model's official context limit is 4K, but available memory constrains the safe maximum.

See all results for RTX PRO 4500 Blackwell 32GB See all hardware for Yi 1.5 34B

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