Openchat 3.5 1210 — Hardware Requirements & GPU Compatibility
Chat
Openchat 3.5 1210 is a 7.2B-parameter open language model from OpenChat in the OpenChat family. It supports a context window of up to 8,192 tokens. At Q4_K_M it needs about 4.91 GB of VRAM — see which GPUs and Macs can run it below.
Runs great on a 24 GB GPU
Runs from 8 GB (Q4_K_M · 8K)Best on 24 GB (Q4_K_M · ~133 tok/s · 8K)Macs from 32 GB (~17 tok/s)
Apache 2.0
Reference GPU · RTX 4090 24 GB
Estimates, ±20% · how we estimate
Run Openchat 3.5 1210
One recommended way. Every other method, OS and quant is in the step-by-step guide.
Recommended
ollama run hf.co/TheBloke/openchat-3.5-1210-GGUF:Q4_K_MQ4_K_M fits fully on the RTX 4090 · 18.3 GB free · 8K context
Download: openchat-3.5-1210.Q4_K_M.gguf4.37 GBTheBloke
Other ways
each opens step-by-stepRun in cloud
Fits on RTX 3060 12GB (6 GB headroom) · Q4_K_M
- Generation speed
- ~48 tok/s
- generation speed
- Cost per 1M output tokens
- $0.44
- per 1M output tokens
How Much VRAM Does Openchat 3.5 1210 Need?
Select a quantization level; the listed hardware adheres to it.
| Quantization | VRAM | +32K | On RTX 4090 (reference) | |
|---|---|---|---|---|
| 3.6 GB | — | 2-bit · K-quant — 2-bit quantization with K-quant improvements | Fits: 8K context · ~180 tok/s | |
| 3.7 GB | — | 3-bit small — 3-bit small quantization | Fits: 8K context · ~175 tok/s | |
| 4.1 GB | — | 3-bit medium — 3-bit medium quantization | Fits: 8K context · ~160 tok/s | |
| 4.2 GB | — | 4-bit · legacy — 4-bit legacy quantization | Fits: 8K context · ~156 tok/s | |
| 4.9 GB | — | 4-bit medium — 4-bit medium quantization — most popular sweet spot | Fits: 8K context · ~133 tok/s | |
| 5.7 GB | — | 5-bit medium — 5-bit medium quantization — good quality/size tradeoff | Fits: 8K context · ~114 tok/s | |
| 6.5 GB | — | 6-bit, very good — 6-bit quantization, very good quality | Fits: 8K context · ~100 tok/s | |
| 7.8 GB | — | 8-bit, near-lossless — 8-bit quantization, near-lossless | Fits: 8K context · ~84 tok/s |
Selected Q4_K_M
4-bit medium quantization5.7GBat 8K context
- Weights
- 4.3 GB
- KV cache
- 1.1 GB
- Overhead
- 0.3 GB
Fits RTX 4090 (reference) · 18.3 GB free · ~133 tok/s
≥50 tok/s needs ≥377 GB/s · RTX 5090 ~237, RTX 3090 Ti ~133
Which Hardware Can Run Openchat 3.5 1210?
Q4_K_M · 4.9 GBOpenchat 3.5 1210 (Q4_K_M) requires 4.9 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 7+ GB is recommended. Using the full 8K context window can add up to 0.8 GB, bringing total usage to 5.7 GB. 52 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti. 160 devices with unified memory can run Openchat 3.5 1210, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Apple iPhone 17 Pro.
≤ 11 GB
≤ 11 GB tier →fits · 2.3 GB free · up to 8K ctx
16 GPUs · 2 device families
RTX 3080~101Simulate output on RTX 3080RTX 2080 Ti~82Simulate output on RTX 2080 TiRTX 3070 Ti~81Simulate output on RTX 3070 TiOrin Nano~14Simulate output on NVIDIA Jetson Orin Nano 8GB (Super)iPhone~10Simulate output on iPhone 1720 GB
fits · 14.3 GB free · up to 8K ctx
1 GPU
RX 7900 XT~98Simulate output on RX 7900 XT32–40 GB
fits · 26.3 GB free · up to 8K ctx
1 GPU · 3 Mac classes · 4 device families
RTX 5090~237Simulate output on RTX 5090M5 Max36 GB~66Simulate output on Mac Studio M5 Max (36 GB)M532 GB~22Simulate output on MacBook Air 13" M5 (32 GB)Orin~27Simulate output on NVIDIA Jetson AGX Orin 32GBSnapdragon X Elite (X1E-80-100)~18Simulate output on Snapdragon X Elite Copilot+ PC
By VRAM tier · typical GPUs and Macs at Q4_K_M
Similar models
6| Model | Score | VRAM | tok/s | Why it is similar |
|---|---|---|---|---|
| Qwen2.5 7B InstructAlibaba | 65.1 | 5.8 GB | ~131 | same size |
| Olmo 3 7B InstructAllen AI | — | 8.4 GB | ~114 | same size |
| Phi Mini MoE InstructMicrosoft | — | 5.4 GB | ~239 | same size |
| Falcon H1 7B InstructTII UAE | — | 6.3 GB | ~130 | same size |
| DeepSeek R1 Distill Qwen 7BDeepSeek | — | 5.8 GB | ~131 | same size |
| Eurus 2 7B PRIMEPRIME-RL | — | 5.1 GB | ~131 | same size |
Specifications
- Publisher
- OpenChat
- Family
- OpenChat
- Parameters
- 7.2B
- Architecture
- MistralForCausalLM
- Context Length
- 8,192 tokens
- Vocabulary Size
- 32,002
- Release Date
- 2023-12-12
- License
- Apache 2.0
Frequently Asked Questions
How much VRAM does Openchat 3.5 1210 need?
Openchat 3.5 1210 requires 4.9 GB of VRAM at Q4_K_M, or 15.1 GB at BF16. Full 8K context adds up to 0.8 GB (5.7 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 7.2B × 4.8 bits ÷ 8 = 4.3 GB
KV Cache + Overhead ≈ 0.6 GB (at 2K context + ~0.3 GB framework)
Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.
KV Cache + Overhead ≈ 1.4 GB (at full 8K context)
VRAM usage by quantization
What's the best quantization for Openchat 3.5 1210?
For Openchat 3.5 1210, Q4_K_M (4.9 GB) offers the best balance of quality and VRAM usage. Q5_0 (5.1 GB) provides better quality if you have the VRAM. The smallest option is IQ2_XXS at 2.6 GB.
VRAM requirement by quantization
★ Recommended — best balance of quality and VRAM usage.
Can I run Openchat 3.5 1210 on a Mac?
Yes, but only at lower quantizations. The smallest Mac that can run Openchat 3.5 1210 is Mac Mini M1 (8 GB) at IQ2_XXS; 156 of the 156 Macs we list can run it at some quantization. For Q4_K_M (4.9 GB) you need a Mac with more unified memory.
Can I run Openchat 3.5 1210 locally?
Yes — Openchat 3.5 1210 can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.
How fast is Openchat 3.5 1210?
At Q4_K_M, Openchat 3.5 1210 can reach ~978 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~133 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.
tok/s = (bandwidth GB/s ÷ model GB) × efficiency
Example: NVIDIA B200 → 8000 ÷ 4.91 × 0.65 = ~1059 tok/s
Estimated speed at Q4_K_M (4.9 GB)
Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
What's the download size of Openchat 3.5 1210?
At Q4_K_M, the download is about 4.35 GB. The full-precision BF16 version is 14.48 GB. The smallest option (IQ2_XXS) is 1.99 GB.
Which GPUs can run Openchat 3.5 1210?
52 consumer GPUs can run Openchat 3.5 1210 at Q4_K_M. Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 52 GPUs have plenty of headroom for comfortable inference.
Which devices can run Openchat 3.5 1210?
160 devices with unified memory can run Openchat 3.5 1210 at Q4_K_M (4.9 GB), including AMD Ryzen AI 9 HX 370 (Strix Point) Laptop, ASUS Ascent GX10, Apple iPhone 17 Pro, Asus ROG Flow Z13 (2025, Ryzen AI Max+ 395, 128 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.