EPYC 9755 vs Ryzen 9 5900X
EPYC 9755
Ryzen 9 5900X
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar EPYC 9755
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 9755 | Ryzen 9 5900X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($10,931) | ✅ More affordable ($350) |
| Longevity | ✨ Modern (Turin (2024) / 4 nm) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | EPYC 9755 | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+631%) |
| Upfront Cost | ⚠️ Higher cost ($10,931) | ✅ More affordable ($350) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of EPYC 9755 and Ryzen 9 5900X
EPYC 9755
The EPYC 9755 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 128 cores and 256 threads. Base frequency is 2.7 GHz, with boost up to 4.1 GHz. L3 cache: 512 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 500 Watt. Memory support: DDR5. Passmark benchmark score: 166,328 points. Launch price was $12,984.
Ryzen 9 5900X
The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.
Processing Power
The EPYC 9755 packs 128 cores / 256 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the EPYC 9755 has 116 more cores. Boost clocks reach 4.1 GHz on the EPYC 9755 versus 4.8 GHz on the Ryzen 9 5900X — a 15.7% clock advantage for the Ryzen 9 5900X (base: 2.7 GHz vs 3.7 GHz). The EPYC 9755 uses the Turin (2024) architecture (4 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the EPYC 9755 scores 166,328 against the Ryzen 9 5900X's 38,955 — a 124.1% lead for the EPYC 9755. Geekbench 6 single-core — the metric most relevant to gaming — records 2,800 vs 2,174, a 25.2% lead for the EPYC 9755 that directly translates to higher frame rates. Multi-core Geekbench: 29,300 vs 11,888 (84.5% advantage for the EPYC 9755). L3 cache: 512 MB (total) on the EPYC 9755 vs 64 MB on the Ryzen 9 5900X.
| Feature | EPYC 9755 | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 128 / 256+967% | 12 / 24 |
| Boost Clock | 4.1 GHz | 4.8 GHz+17% |
| Base Clock | 2.7 GHz | 3.7 GHz+37% |
| L3 Cache | 512 MB (total)+700% | 64 MB |
| L2 Cache | 1 MB (per core)+100% | 512K (per core) |
| Process | 4 nm-43% | 7 nm, 12 nm |
| Architecture | Turin (2024) | Vermeer (Zen3) (2020−2022) |
| PassMark | 166,328+327% | 38,955 |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | 2,800+29% | 2,174 |
| Geekbench 6 Multi | 29,300+146% | 11,888 |
Memory & Platform
The EPYC 9755 uses the SP5 socket (PCIe 5.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6000 on the EPYC 9755 versus DDR4-3200 on the Ryzen 9 5900X — the EPYC 9755 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 5900X supports up to 128 GB of RAM compared to 9 TB — 173.7% more capacity for professional workloads. Memory channels: 12 (EPYC 9755) vs 2 (Ryzen 9 5900X). PCIe lanes: 128 (EPYC 9755) vs 24 (Ryzen 9 5900X) — the EPYC 9755 offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP5 (EPYC 9755) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | EPYC 9755 | Ryzen 9 5900X |
|---|---|---|
| Socket | SP5 | AM4 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-6000+25% | DDR4-3200 |
| Max RAM Capacity | 9 TB+7100% | 128 GB |
| RAM Channels | 12+500% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+433% | 24 |
Advanced Features
Virtualization support: AMD-V, SEV-SNP (EPYC 9755) vs AMD-V (Ryzen 9 5900X). Primary use case: EPYC 9755 targets Data Center / Cloud Computing, Ryzen 9 5900X targets Workstation. Direct competitor: EPYC 9755 rivals Xeon 6980P; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | EPYC 9755 | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | AMD-V, SEV-SNP | AMD-V |
| Target Use | Data Center / Cloud Computing | Workstation |
Value Analysis
The EPYC 9755 launched at $12984 MSRP, while the Ryzen 9 5900X debuted at $549. At current prices ($10931 vs $350), the Ryzen 9 5900X is $10581 cheaper. In terms of value (PassMark points per dollar), the EPYC 9755 delivers 15.2 pts/$ vs 111.3 pts/$ for the Ryzen 9 5900X — making the Ryzen 9 5900X the 151.9% better value option.
| Feature | EPYC 9755 | Ryzen 9 5900X |
|---|---|---|
| MSRP | $12984 | $549-96% |
| Avg Price (30d) | $10931 | $350-97% |
| Performance per Dollar | 15.2 | 111.3+632% |
| Release Date | 2024 | 2020 |
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