Yi 1.5 34B GPU Hardware & VRAM Calculator

01.AI's highly optimized dense model built upon the acclaimed Yi architecture, offering enhanced coding, math, and reasoning capabilities for enterprise applications.

Quantization Precision (Bits)INT4 (Quantized)

Lower bits drastically reduce weight footprint but introduce minor accuracy degradation.

Context Length (Tokens)8,192 Tokens

Longer context windows aggressively ingest VRAM during Key-Value matrix caching.

Estimated Minimum VRAM
27 GB

Dynamically aggregated for Yi 1.5 34B based on your selected quantization precision and context boundary.

Scroll down for real-time mathematical proof.

📊 Real-Time VRAM Mathematical Formulation & Derivation

How did we arrive at 27 GB? Below is the verified industrial infrastructure forecasting model.

The VRAM Forecasting Equation
Total VRAM = (Model Weights + KV Cache) × System Overhead
VRAM = ((Params × Bits / 8) + (Context / 1024 × 0.5)) × 1.25

1. Input Parameters & Constants Mapping

Model Variables
  • • Params (Model Size): 34 Billion
  • • Bits (Precision): 4-bit (Selected via slider)
Runtime Constants
  • • Context Window: 8,192 Tokens (Selected via slider)
  • • KV Cache Factor: 0.5 GB / 1K Tokens (Empirical baseline)
  • • System Overhead: 1.25 (25%) (CUDA Context & Activation buffer)

2. Step-by-Step Calculation Engine

[Step 1] Compute Model Weights Allocation:

Formula: (Parameters × Bits) / 8 Bytes per GB

➔ (34B × 4) / 8 = 17.00 GB

[Step 2] Compute Key-Value (KV) Cache Matrix Size:

Formula: (Tokens / 1024) × 0.5 GB Baseline

➔ (8192 / 1024) × 0.5 = 4.00 GB

[Step 3] Apply System Overhead Risk Buffer:

Formula: (Weights + KV Cache) × 1.25 CUDA Runtime Multiplier

➔ (17.00GB + 4.00GB) × 1.25 = 26.25 GB

[Final Step] Rounding Ceiling (Ceil):⌈ 26.25 ⌉ = 27 GB

Live Cloud GPU Cost Breakdown

GPU HardwareRequired Cluster SizeCombined VRAMEstimated CostDeployment Link
NVIDIA Blackwell B2001x Node192 GB$4.85/hrRent via RunPod ↗
NVIDIA Hopper H200 141GB1x Node141 GB$2.95/hrRent via RunPod ↗
NVIDIA H100 SXM 80GB1x Node80 GB$2.19/hrRent via RunPod ↗
NVIDIA H100 PCIe 80GB1x Node80 GB$1.75/hrRent via RunPod ↗
NVIDIA A100 SXM 80GB1x Node80 GB$1.35/hrRent via RunPod ↗
NVIDIA A10G 24GB2x Node48 GB$1.58/hrRent via RunPod ↗
NVIDIA L4 24GB2x Node48 GB$1.10/hrRent via RunPod ↗
NVIDIA RTX 4090 24GB2x Node48 GB$1.30/hrRent via RunPod ↗
NVIDIA RTX 3090 24GB2x Node48 GB$0.78/hrRent via RunPod ↗
AMD Instinct MI300X1x Node192 GB$2.65/hrRent via RunPod ↗
NVIDIA RTX 5090 32GB1x Node32 GB$1.58/hrRent via RunPod ↗
NVIDIA H100 NVL 94GB1x Node94 GB$3.19/hrRent via RunPod ↗
NVIDIA L40S 48GB1x Node48 GB$1.90/hrRent via RunPod ↗
NVIDIA RTX 6000 Ada 48GB1x Node48 GB$2.09/hrRent via RunPod ↗
NVIDIA RTX A6000 48GB1x Node48 GB$1.22/hrRent via RunPod ↗
NVIDIA A100 PCIe 80GB1x Node80 GB$1.19/hrRent via RunPod ↗
NVIDIA RTX A5000 24GB2x Node48 GB$0.54/hrRent via RunPod ↗
NVIDIA RTX Pro 6000 96GB1x Node96 GB$2.09/hrRent via RunPod ↗
NVIDIA A40 48GB1x Node48 GB$0.44/hrRent via RunPod ↗
NVIDIA L40 48GB1x Node48 GB$0.69/hrRent via RunPod ↗
NVIDIA A100 PCIe 40GB1x Node40 GB$0.60/hrRent via RunPod ↗
NVIDIA RTX 4000 Ada 24GB2x Node48 GB$0.90/hrRent via RunPod ↗
NVIDIA RTX A4000 16GB2x Node32 GB$0.46/hrRent via RunPod ↗
AMD Instinct MI210 64GB1x Node64 GB$0.75/hrRent via RunPod ↗

Pros & Cons of Yi 1.5 34B

PROS
  • Superb bilingual English/Chinese linguistic alignment
  • Excellent structure-to-code compiler task execution
  • Strong baseline knowledge density for a 30B-class model
CONS
  • Requires dual-GPU setups or quantization to host comfortably on standard hardware

Production Deployment Guide

# Option 1: Quick Local Deployment via Ollamaollama run yi:34b
# Option 2: High-Throughput Cluster via vLLMpython -m vllm.entrypoints.openai.api_server --model 01-ai/Yi-1.5-34B-Chat --tensor-parallel-size 2