Core i5-8400vsEPYC 9755
The Core i5-8400 is a budget-friendly 6-core desktop CPU for everyday computing and light gaming, while the EPYC 9755 is a 128-core server monster built for massive data centers and heavy virtualization.
Core i5-8400
Coffee Lake-S · 14 nm · 2017
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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 wins overall for anyone needing massive multi-core performance, leaving the Core i5-8400 in the dust for heavy workloads.
For budget buyers, the Core i5-8400 is the smarter pick due to its lower power draw and adequate performance for everyday tasks.
The Core i5-8400 is the right choice for a basic office PC where the EPYC 9755 would be overkill and wasteful.
Frequently asked questions
Is the Core i5-8400 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 i5-8400 in most workloads.
How much faster is the EPYC 9755 than the Core i5-8400?
Based on our aggregated benchmark scores the EPYC 9755 is roughly 1567% faster than the Core i5-8400 overall. The real-world gap varies by game, resolution and settings.
Which should you buy, the Core i5-8400 or the EPYC 9755?
If you want the most performance, pick the EPYC 9755. If the Core i5-8400 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.