RTX PRO 5000 Blackwell 48GBOpção econômica1344 GB/s (+544)
B
Raises estimated decode speed by about 143%.59.1 tok/s decodificação
Raises estimated decode speed by about 143%.
~$4,999 MSRP
Can Yi 34B Chat run on Mac Studio M2 Ultra 64GB?
YES — Runs Great
C54Usable
Estimated from fit model
Yi 34B Chat needs ~32.2 GB VRAM. Mac Studio M2 Ultra 64GB has 46.1 GB. With Q4_K_M quantization, expect ~24 tok/s.
Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: 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.
Select quantization to explore
Q4_K_M (Medium quality) — 32.2 GB, 24.3 tok/s, Runs well
32.2 GB required46.1 GB available
70% VRAM used
Fit status
Runs well
Decode
24.3 tok/s
TTFT
7970 ms
Safe context
77K
Memory
32.2 GB / 46.1 GB
Memory breakdown
Weights20.7 GB
KV Cache3.7 GB
Runtime0.9 GB
Headroom6.9 GB
See how fast it feels
See how fast it feelsYi 34B Chat on Mac Studio M2 Ultra 64GB
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: 24.3 tok/s decode · 8.0s TTFT (warm) · 61 tok/s prefill
What limits this setup
This setup is broadly balanced for this model.
Shared-memory contention still exists
The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.
Best improvement path
Performance by workload
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 24.3 tok/s | 4347 ms | 77K |
| Coding | C | Runs well | 24.3 tok/s | 7970 ms | 77K |
| Agentic Coding | C | Runs well | 24.3 tok/s | 11593 ms | 77K |
| Reasoning | C | Runs well | 24.3 tok/s | 9420 ms | 77K |
| RAG | C | Runs well | 24.3 tok/s | 14492 ms | 77K |
Inference speed
Yi 34B Chat inference speed — tokens per second by GPU & Mac
Estimated decode speed (tokens/sec) for Yi 34B Chat at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~41 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.
| GPU / Mac | Memory | Quant | Speed (tok/s) | Fits? |
|---|---|---|---|---|
| RTX 5090 32GB | 32 GB | Q4_K_M | 40.7 | Tight |
MacBook Pro M4 Max 128GB | 128 GB | Q4_K_M | 31.4 | Fits |
MacBook Pro M4 Max 64GB | 64 GB | Q4_K_M | 31.4 | Fits |
Mac Studio M3 Ultra 256GB | 256 GB | Q4_K_M | 29.2 | Fits |
Mac Studio M2 Ultra 128GB | 128 GB | Q4_K_M | 24.3 | Fits |
Mac Studio M1 Ultra 128GB | 128 GB | Q4_K_M | 23.0 | Fits |
RX 7900 XTX 24GB | 24 GB | Q4_K_M | 20.1 | Heavy offload |
MacBook Pro M4 Pro 48GB | 48 GB | Q4_K_M | 19.8 | Tight |
| RTX 4090 24GB | 24 GB | Q4_K_M | 12.8 | Heavy offload |
MacBook Pro M3 Max 64GB | 64 GB | Q4_K_M | 12.6 | Fits |
| RTX 3090 24GB | 24 GB | Q4_K_M | 11.8 | Heavy offload |
MacBook Pro M1 Max 64GB | 64 GB | Q4_K_M | 11.5 | Fits |
| RTX 4080 Super 16GB | 16 GB | Q4_K_M | 4.6 | Too big |
| RTX 4070 12GB | 12 GB | Q4_K_M | 2.0 | Too big |
| RTX 3060 12GB | 12 GB | Q4_K_M | 2.0 | Too big |
| RTX 4060 8GB | 8 GB | Q4_K_M | 2.0 | Too big |
Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.
Quantization options
How Yi 34B Chat (34B params) fits at each quantization level on Mac Studio M2 Ultra 64GB (46.1 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 13.3 GB | Low | C46 |
Q3_K_S | 3 | 16.7 GB | Low | C47 |
NVFP4 | 4 | 19.0 GB | Medium | C48 |
Q4_K_M | 4 | 20.7 GB | Medium | C48 |
Q5_K_M | 5 | 24.5 GB | High | C50 |
Q6_K | 6 | 27.9 GB | High | C50 |
Q8_0Best for your GPU | 8 | 36.4 GB | Very High | C49 |
F16 | 16 | 69.7 GB | Maximum | F0 |
Get started
Copy-paste commands to run Yi 34B Chat on your machine.
Run
lms load Yi-34B-Chat && lms server startOpções de upgrade
Hardware que roda bem Yi 34B Chat
Frequently asked questions
Can Mac Studio M2 Ultra 64GB run Yi 34B Chat?
Yes, Mac Studio M2 Ultra 64GB can run Yi 34B Chat with a C grade (Runs well). Expected decode speed: 24.3 tok/s.
How much VRAM does Yi 34B Chat need?
Yi 34B Chat (34B parameters) requires approximately 32.2 GB of memory with Q4_K_M quantization.
What is the best quantization for Yi 34B Chat?
The recommended quantization for Yi 34B Chat is Q4_K_M, which balances quality and memory efficiency.
What speed will Yi 34B Chat run at on Mac Studio M2 Ultra 64GB?
On Mac Studio M2 Ultra 64GB, Yi 34B Chat achieves approximately 24.3 tokens per second decode speed with a time-to-first-token of 7970ms using Q4_K_M quantization.
Can Mac Studio M2 Ultra 64GB run Yi 34B Chat for coding?
For coding workloads, Yi 34B Chat on Mac Studio M2 Ultra 64GB receives a C grade with 24.3 tok/s and 77K context.
What context window can Yi 34B Chat use on Mac Studio M2 Ultra 64GB?
On Mac Studio M2 Ultra 64GB, Yi 34B Chat can safely use up to 77K tokens of context. The model's official context limit is 200K, but available memory constrains the safe maximum.
Is unified memory on Mac Studio M2 Ultra 64GB as fast as VRAM for Yi 34B Chat?
Not always. Mac Studio M2 Ultra 64GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.
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