EPYC 4585PX vs Ryzen 9 9950X3D
EPYC 4585PX
Ryzen 9 9950X3D
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 4585PX
Performance Per Dollar Ryzen 9 9950X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 4585PX | Ryzen 9 9950X3D |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($826) | ✅ More affordable ($675) |
| Longevity | ✨ Modern (Grado (2025) / 4 nm) | ✨ Modern (Granite Ridge (2024−2025) / 4 nm) |
💎 Value Proposition
| Insight | EPYC 4585PX | Ryzen 9 9950X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+22%) |
| Upfront Cost | ⚠️ Higher cost ($826) | ✅ More affordable ($675) |
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 4585PX and Ryzen 9 9950X3D
EPYC 4585PX
The EPYC 4585PX 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 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 70,563 points. Launch price was $699.
Ryzen 9 9950X3D
The Ryzen 9 9950X3D is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 70,177 points. Launch price was $699.
Processing Power
Both the EPYC 4585PX and Ryzen 9 9950X3D share an identical 16-core/32-thread configuration. Boost clocks reach 5.7 GHz on the EPYC 4585PX versus 5.7 GHz on the Ryzen 9 9950X3D — identical boost frequencies (base: 4.3 GHz vs 4.3 GHz). The EPYC 4585PX uses the Grado (2025) architecture (4 nm), while the Ryzen 9 9950X3D uses Granite Ridge (2024−2025) (4 nm). In PassMark, the EPYC 4585PX scores 70,563 against the Ryzen 9 9950X3D's 70,177 — a 0.5% lead for the EPYC 4585PX. Both processors carry 128 MB (total) of L3 cache.
| Feature | EPYC 4585PX | Ryzen 9 9950X3D |
|---|---|---|
| Cores / Threads | 16 / 32 | 16 / 32 |
| Boost Clock | 5.7 GHz | 5.7 GHz |
| Base Clock | 4.3 GHz | 4.3 GHz |
| L3 Cache | 128 MB (total) | 128 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 | 70,563 | 70,177 |
| Cinebench R23 Multi | — | 44,500 |
| Geekbench 6 Single | — | 3,398 |
| Geekbench 6 Multi | — | 22,206 |
Memory & Platform
Both processors use the AM5 socket with PCIe 4.0. Maximum memory speed reaches 5600 on the EPYC 4585PX versus DDR5-5600 on the Ryzen 9 9950X3D — the EPYC 4585PX supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 4585PX supports up to 256 of RAM compared to 192 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (EPYC 4585PX) vs 24 (Ryzen 9 9950X3D) — the EPYC 4585PX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4585PX) and X670E,X670,B650E,B650 (Ryzen 9 9950X3D).
| Feature | EPYC 4585PX | Ryzen 9 9950X3D |
|---|---|---|
| Socket | AM5 | AM5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 5600+111900% | DDR5-5600 |
| Max RAM Capacity | 256 | 192 GB+78643100% |
| 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 4585PX) vs true (Ryzen 9 9950X3D). Both include integrated graphics — AMD Radeon Graphics (EPYC 4585PX) and Radeon Graphics (2 Cores) (Ryzen 9 9950X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: EPYC 4585PX rivals Core Ultra 9 285K; Ryzen 9 9950X3D rivals Core Ultra 9 285K.
| Feature | EPYC 4585PX | Ryzen 9 9950X3D |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | AMD Radeon Graphics | Radeon Graphics (2 Cores) |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | true |
Value Analysis
The EPYC 4585PX launched at $699 MSRP, while the Ryzen 9 9950X3D debuted at $699. At current prices ($826 vs $675), the Ryzen 9 9950X3D is $151 cheaper. In terms of value (PassMark points per dollar), the EPYC 4585PX delivers 85.4 pts/$ vs 104.0 pts/$ for the Ryzen 9 9950X3D — making the Ryzen 9 9950X3D the 19.6% better value option.
| Feature | EPYC 4585PX | Ryzen 9 9950X3D |
|---|---|---|
| MSRP | $699 | $699 |
| Avg Price (30d) | $826 | $675-18% |
| Performance per Dollar | 85.4 | 104.0+22% |
| Release Date | 2025 | 2025 |
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