AMD EPYC 9255 vs Intel Xeon 658X
AMD EPYC 9255 and Intel Xeon 658X are both server processors listed on PassMark CPU Benchmarks. This page sets their benchmark scores, estimated prices, and specifications side by side using the same source data for both, so the figures are directly comparable.
AMD EPYC 9255 lists SP5 and Intel Xeon 658X lists FCLGA4710, so moving between them is likely to be a platform change. Budget for a motherboard, memory, and cooling as well as the processor.
| Metric | AMD EPYC 9255 | Intel Xeon 658X |
|---|---|---|
| Single core | 3,655 | 3,705 |
| Multicore | 76,580 | 73,759 |
| Estimated price | Not listed | $2,099.99 |
| Cores | 24 | 24 |
| Threads | 48 | 48 |
| Performance cores | Not listed | Not listed |
| Efficient cores | Not listed | Not listed |
| Base clock | 4 GHz | 3 GHz |
| Turbo clock | 4.3 GHz | 4.9 GHz |
| Typical TDP | 200 W | 250 W |
| Socket | SP5 | FCLGA4710 |
| Class | Server | Server |
| Release / first seen | Q2 2025 | Q1 2026 |
How do the benchmark scores compare?
AMD EPYC 9255 has a PassMark single-core score of 3,655, compared with 3,705 for Intel Xeon 658X. Intel Xeon 658X has the higher score in this benchmark.
AMD EPYC 9255 has a PassMark multicore score of 76,580, compared with 73,759 for Intel Xeon 658X. AMD EPYC 9255 has the higher score in this benchmark.
Single-core scores describe one thread; multicore scores describe aggregate CPU throughput. These results do not establish which CPU is faster in every application. Compare platform support and total upgrade cost before buying.
AMD EPYC 9255 lists SP5; Intel Xeon 658X lists FCLGA4710. Check the motherboard manufacturer's CPU support list and BIOS requirements. If the required platform changes, include motherboard, memory and cooling costs; the CPU price alone is not the full upgrade cost.
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Sources and data freshness
- AMD EPYC 9255 on PassMark CPU Benchmarks. Data retrieved .
- Intel Xeon 658X on PassMark CPU Benchmarks. Data retrieved .
The retrieval date records when Find Me a CPU collected the source data. It is not a benchmark test date. Prices are USD estimates from the source, converted for other currencies, rather than live retailer offers. Release / first seen means the CPU first appeared on PassMark charts, not necessarily its launch date.
Benchmark scores do not predict frame rates in a particular game. Typical TDP is a specification, not measured electricity use. A matching socket does not confirm motherboard support; check the manufacturer's CPU support list and BIOS requirements.
How our data and recommendations work