Core i5-9400vsEPYC 9755
The Core i5-9400 is a six-core desktop chip for everyday computing and light gaming, while the EPYC 9755 is a 128-core server monster built for crushing massive enterprise workloads.
Core i5-9400
Coffee Lake · 14 nm · 2019
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EPYC 9755
Turin · 4 nm · 2024
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Overall Performance Score
A unified score from combined synthetic and real-world benchmarks. 100 represents the fastest desktop CPU available.
Side-by-Side Specs
Every detail compared. Highlighted cells indicate the leading value for that metric.
Which should you buy?
The EPYC 9755 is the clear winner overall for anyone needing extreme multi-core performance, while the Core i5-9400 is a less capable chip for basic tasks.
For budget buyers, the Core i5-9400 is the smarter pick as it costs far less and handles everyday work without fuss.
The Core i5-9400 is the right choice for a simple home office PC where the EPYC 9755's power and cost would be wasteful.
Frequently asked questions
Is the Core i5-9400 better than the EPYC 9755?
Overall the EPYC 9755 is the stronger processor: it ranks higher in our aggregate performance score (100 vs 6 out of 100), so it leads the Core i5-9400 in most workloads.
How much faster is the EPYC 9755 than the Core i5-9400?
Based on our aggregated benchmark scores the EPYC 9755 is roughly 1567% faster than the Core i5-9400 overall. The real-world gap varies by game, resolution and settings.
Which should you buy, the Core i5-9400 or the EPYC 9755?
If you want the most performance, pick the EPYC 9755. If the Core i5-9400 is meaningfully cheaper where you shop, it can be the better value for similar real-world results — check current prices and the full spec comparison above before deciding.