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vLLM Cost Optimization: 60% GPU Cost Reduction

Implemented dynamic batching and model quantization achieving $45k/month GPU cost savings while improving performance

92/100

Impact Score

Excellent
$45k

Business Value

Quantified impact

18h

Development

8min read

16.7x

ROI

8/8/2025

Technologies Used

Python
vLLM
CUDA
AWQ
FastAPI
Redis
Kubernetes
Prometheus

Architecture Patterns

Model Quantization
Dynamic Batching
GPU Optimization
Request Prioritization

Challenge

Production vLLM deployment optimization using AWQ quantization, KV cache optimization, and intelligent request batching with priority queues

Technical Stack

Python
vLLM
CUDA
AWQ
FastAPI
Redis
Kubernetes
Prometheus

Architecture Patterns

Model Quantization
Dynamic Batching
GPU Optimization
Request Prioritization

Performance Impact

Before vs After Metrics

cost per 1k tokens

↓60.0%
Before
$0.025
After
$0.010

avg latency

↓25.0%
Before
2.4s
After
1.8s

gpu utilization

↑73.3%
Before
45%
After
78%

requests per gpu

↑133.3%
Before
12/min
After
28/min

Business Impact

Business Impact Summary
$45k

Business Value

Quantified impact

92/100

Impact Score

Excellent

Key Outcomes Achieved

60% GPU cost reduction ($45k/month savings)
92/100 impact score with quantified performance gains
25% faster inference speed with optimized batching
78% GPU utilization vs 45% baseline
ROI Analysis

Value Created: $45k

Impact Rating: 92/100 (Exceptional impact)

Evidence-Based: All metrics verified through production systems

Technical Implementation

Detailed technical content and code examples are rendered from the MDX file. This includes architecture diagrams, code snippets, and step-by-step implementation details.

Evidence & Verification

Evidence & Verification

Live Demo

Interactive demonstration of the system

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Source Code

Complete source code implementation

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Pull Request

GitHub pull request with technical details

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Live Metrics

Real-time performance monitoring dashboard

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Visual Evidence
gpu-utilization
cost-comparison

Screenshots, architecture diagrams, and performance charts from production systems

Verified Implementation

All metrics and evidence are sourced from production systems and actual GitHub repositories. This case study represents real-world implementation with measurable business outcomes.

Related Technologies

vLLM
GPU Optimization
Model Quantization
Cost Reduction
Performance
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