EPYC 4545P vs Ryzen 9 9900X
EPYC 4545P
Ryzen 9 9900X
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 4545P
Performance Per Dollar Ryzen 9 9900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 4545P | Ryzen 9 9900X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($595) | ✅ More affordable ($370) |
| Longevity | ✨ Modern (Grado (2025) / 4 nm) | ✨ Modern (Granite Ridge (2024−2025) / 4 nm) |
💎 Value Proposition
| Insight | EPYC 4545P | Ryzen 9 9900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+62%) |
| Upfront Cost | ⚠️ Higher cost ($595) | ✅ More affordable ($370) |
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 4545P and Ryzen 9 9900X
EPYC 4545P
The EPYC 4545P is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 16 cores and 32 threads. Base frequency is 3 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 54,255 points. Launch price was $549.
Ryzen 9 9900X
The Ryzen 9 9900X is manufactured by AMD. It was released in 15 August 2024 (1 year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.4 GHz, with boost up to 5.6 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 54,530 points. Launch price was $499.
Processing Power
The EPYC 4545P packs 16 cores / 32 threads, while the Ryzen 9 9900X offers 12 cores / 24 threads — the EPYC 4545P has 4 more cores. Boost clocks reach 5.4 GHz on the EPYC 4545P versus 5.6 GHz on the Ryzen 9 9900X — a 3.6% clock advantage for the Ryzen 9 9900X (base: 3 GHz vs 4.4 GHz). The EPYC 4545P uses the Grado (2025) architecture (4 nm), while the Ryzen 9 9900X uses Granite Ridge (2024−2025) (4 nm). In PassMark, the EPYC 4545P scores 54,255 against the Ryzen 9 9900X's 54,530 — a 0.5% lead for the Ryzen 9 9900X. Both processors carry 64 MB (total) of L3 cache.
| Feature | EPYC 4545P | Ryzen 9 9900X |
|---|---|---|
| Cores / Threads | 16 / 32+33% | 12 / 24 |
| Boost Clock | 5.4 GHz | 5.6 GHz+4% |
| Base Clock | 3 GHz | 4.4 GHz+47% |
| L3 Cache | 64 MB (total) | 64 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 4 nm | 4 nm |
| Architecture | Grado (2025) | Granite Ridge (2024−2025) |
| PassMark | 54,255 | 54,530 |
| Cinebench R23 Multi | — | 33,003 |
| Geekbench 6 Single | — | 3,401 |
| Geekbench 6 Multi | — | 19,756 |
Memory & Platform
Both processors use the AM5 socket with PCIe 4.0. Maximum memory speed reaches 5600 on the EPYC 4545P versus DDR5-5600 on the Ryzen 9 9900X — the EPYC 4545P supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 9900X supports up to 256 GB of RAM compared to 192 — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (EPYC 4545P) vs 24 (Ryzen 9 9900X) — the EPYC 4545P offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4545P) and A620,B650,X670,X870 (Ryzen 9 9900X).
| Feature | EPYC 4545P | Ryzen 9 9900X |
|---|---|---|
| Socket | AM5 | AM5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 5600+111900% | DDR5-5600 |
| Max RAM Capacity | 192 | 256 GB+139810033% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28+17% | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (EPYC 4545P) vs AMD-V (Ryzen 9 9900X). Both include integrated graphics — AMD Radeon Graphics (EPYC 4545P) and Radeon 610M (Ryzen 9 9900X) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: EPYC 4545P rivals Ryzen 9 7900X.
| Feature | EPYC 4545P | Ryzen 9 9900X |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | AMD Radeon Graphics | Radeon 610M |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | AMD-V |
Value Analysis
The EPYC 4545P launched at $549 MSRP, while the Ryzen 9 9900X debuted at $499. At current prices ($595 vs $370), the Ryzen 9 9900X is $225 cheaper. In terms of value (PassMark points per dollar), the EPYC 4545P delivers 91.2 pts/$ vs 147.4 pts/$ for the Ryzen 9 9900X — making the Ryzen 9 9900X the 47.1% better value option.
| Feature | EPYC 4545P | Ryzen 9 9900X |
|---|---|---|
| MSRP | $549 | $499-9% |
| Avg Price (30d) | $595 | $370-38% |
| Performance per Dollar | 91.2 | 147.4+62% |
| Release Date | 2025 | 2024 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on EPYC 4545P and Ryzen 9 9900X
