EPYC 9655P
Ryzen 9 5900X
EPYC 9655P vs Ryzen 9 5900X Performance Spectrum
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.
EPYC 9655P vs Ryzen 9 5900X FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
EPYC 9655P vs Ryzen 9 5900X: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
EPYC 9655P
2024Why buy it
- ✅+104.3% higher Geekbench multi-core.
- ✅+500% larger total L3 cache (384 MB vs 64 MB).
- ✅Better for workstations and heavier parallel workloads: 96 cores / 192 threads, plus 128 PCIe lanes vs 24.
- ✅Newer platform on SP5 with DDR5 support instead of AM4 and DDR4.
- ✅433.3% more PCIe lanes (128 vs 24) for storage and expansion-heavy builds.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
- ❌Lower PassMark per dollar, at 14.8 vs 71.0 PassMark/$ ($10,811 MSRP vs $549 MSRP).
- ❌281% higher power demand at 400W vs 105W.
Ryzen 9 5900X
2020Why buy it
- ✅Better for gaming: +12.6% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $10,262 less on MSRP ($549 MSRP vs $10,811 MSRP).
- ✅Delivers 378.0% more PassMark for each dollar spent, at 71.0 vs 14.8 PassMark/$ ($549 MSRP vs $10,811 MSRP).
- ✅Draws 105W instead of 400W, a 295W reduction.
Trade-offs
- ❌Lower Geekbench multi-core (11,888 vs 24,287).
- ❌Smaller total L3 cache (64 MB vs 384 MB).
- ❌Less compelling for workstation-style loads than EPYC 9655P, which brings 96 cores / 192 threads and 128 PCIe lanes.
- ❌Older platform position on AM4 with DDR4, while EPYC 9655P moves to SP5 and DDR5.
Quick Answers
So, is EPYC 9655P better than Ryzen 9 5900X?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
EPYC 9655P vs Ryzen 9 5900X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
EPYC 9655P
The EPYC 9655P is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 96 cores and 192 threads. Base frequency is 2.6 GHz, with boost up to 4.5 GHz. L3 cache: 384 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 400 Watt. Memory support: DDR5. Passmark benchmark score: 160,490 points. Launch price was $10,811.
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 9655P packs 96 cores / 192 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the EPYC 9655P has 84 more cores. Boost clocks reach 4.5 GHz on the EPYC 9655P versus 4.8 GHz on the Ryzen 9 5900X — a 6.5% clock advantage for the Ryzen 9 5900X (base: 2.6 GHz vs 3.7 GHz). The EPYC 9655P 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 9655P scores 160,490 against the Ryzen 9 5900X's 38,955 — a 121.9% lead for the EPYC 9655P. Multi-core Geekbench: 24,287 vs 11,888 (68.6% advantage for the EPYC 9655P). L3 cache: 384 MB (total) on the EPYC 9655P vs 64 MB on the Ryzen 9 5900X.
| Feature | EPYC 9655P | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 96 / 192+700% | 12 / 24 |
| Boost Clock | 4.5 GHz | 4.8 GHz+7% |
| Base Clock | 2.6 GHz | 3.7 GHz+42% |
| L3 Cache | 384 MB (total)+500% | 64 MB |
| L2 Cache | 1 MB (per core) | 512K (per core)+51100% |
| Process | 4 nm-43% | 7 nm, 12 nm |
| Architecture | Turin (2024) | Vermeer (Zen3) (2020−2022) |
| PassMark | 160,490+312% | 38,955 |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | — | 2,174 |
| Geekbench 6 Multi | 24,287+104% | 11,888 |
Memory & Platform
The EPYC 9655P 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 9655P versus DDR4-3200 on the Ryzen 9 5900X — the EPYC 9655P supports 87.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9655P supports up to 6 TB of RAM compared to 128 GB — 4700% more capacity for professional workloads. Memory channels: 12 (EPYC 9655P) vs 2 (Ryzen 9 5900X). PCIe lanes: 128 (EPYC 9655P) vs 24 (Ryzen 9 5900X) — the EPYC 9655P offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP5 (EPYC 9655P) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | EPYC 9655P | Ryzen 9 5900X |
|---|---|---|
| Socket | SP5 | AM4 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-6000+88% | DDR4-3200 |
| Max RAM Capacity | 6 TB+4700% | 128 GB |
| RAM Channels | 12+500% | 2 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 128+433% | 24 |
Advanced Features
Virtualization support: AMD-V, SEV-SNP (EPYC 9655P) vs AMD-V (Ryzen 9 5900X). Primary use case: EPYC 9655P targets Data Center / Single Socket, Ryzen 9 5900X targets Workstation. Direct competitor: EPYC 9655P rivals Xeon 6979P; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | EPYC 9655P | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | AMD-V, SEV-SNP | AMD-V |
| Target Use | Data Center / Single Socket | Workstation |
Value Analysis
At launch, the EPYC 9655P was priced at $10811, while the Ryzen 9 5900X came in at $549. On launch pricing ($10811 vs $549), Ryzen 9 5900X was $10262 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9655P delivers 14.8 pts/$ vs 71.0 pts/$ for the Ryzen 9 5900X — making the Ryzen 9 5900X the 130.8% better value option.
| Feature | EPYC 9655P | Ryzen 9 5900X |
|---|---|---|
| MSRP | $10811 | $549-95% |
| Performance per Dollar | 14.8 | 71.0+380% |
| Release Date | 2024 | 2020 |
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