Ryzen Threadripper PRO 9985WX vs EPYC 9555
Ryzen Threadripper PRO 9985WX
EPYC 9555
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 Ryzen Threadripper PRO 9985WX
Performance Per Dollar EPYC 9555
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 9985WX | EPYC 9555 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($7,999) | ✅ More affordable ($7,973) |
| Longevity | ✨ Modern (Shimada Peak (2025) / 4 nm) | ✨ Modern (Turin (2024) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 9985WX | EPYC 9555 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+15%) | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($7,999) | ✅ More affordable ($7,973) |
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 Ryzen Threadripper PRO 9985WX and EPYC 9555
Ryzen Threadripper PRO 9985WX
The Ryzen Threadripper PRO 9985WX is manufactured by AMD. It was released in 23 July 2025 (less than a year ago). It is based on the Shimada Peak (2025) architecture. It features 64 cores and 128 threads. Base frequency is 3.2 GHz, with boost up to 5.4 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 154,361 points. Launch price was $7,999.
EPYC 9555
The EPYC 9555 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 64 cores and 128 threads. Base frequency is 3.2 GHz, with boost up to 4.4 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 360 Watt. Memory support: DDR5. Passmark benchmark score: 133,253 points. Launch price was $9,826.
Processing Power
Both the Ryzen Threadripper PRO 9985WX and EPYC 9555 share an identical 64-core/128-thread configuration. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9985WX versus 4.4 GHz on the EPYC 9555 — a 20.4% clock advantage for the Ryzen Threadripper PRO 9985WX (base: 3.2 GHz vs 3.2 GHz). The Ryzen Threadripper PRO 9985WX uses the Shimada Peak (2025) architecture (4 nm), while the EPYC 9555 uses Turin (2024) (4 nm). In PassMark, the Ryzen Threadripper PRO 9985WX scores 154,361 against the EPYC 9555's 133,253 — a 14.7% lead for the Ryzen Threadripper PRO 9985WX. Both processors carry 256 MB (total) of L3 cache.
| Feature | Ryzen Threadripper PRO 9985WX | EPYC 9555 |
|---|---|---|
| Cores / Threads | 64 / 128 | 64 / 128 |
| Boost Clock | 5.4 GHz+23% | 4.4 GHz |
| Base Clock | 3.2 GHz | 3.2 GHz |
| L3 Cache | 256 MB (total) | 256 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 4 nm | 4 nm |
| Architecture | Shimada Peak (2025) | Turin (2024) |
| PassMark | 154,361+16% | 133,253 |
| Cinebench R23 Multi | 120,000 | — |
| Geekbench 6 Single | 3,644 | — |
| Geekbench 6 Multi | 37,967 | — |
Memory & Platform
The Ryzen Threadripper PRO 9985WX uses the sTR5 socket (PCIe 4.0), while the EPYC 9555 uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Ryzen Threadripper PRO 9985WX supports up to 2048 GB of RAM compared to 6 TB — 198.8% more capacity for professional workloads. Memory channels: 8 (Ryzen Threadripper PRO 9985WX) vs 12 (EPYC 9555). Both provide 128 PCIe lanes. Chipset compatibility: WRX90,TRX50 (Ryzen Threadripper PRO 9985WX) and SP5 (EPYC 9555).
| Feature | Ryzen Threadripper PRO 9985WX | EPYC 9555 |
|---|---|---|
| Socket | sTR5 | SP5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR5-6400 | DDR5-6000 |
| Max RAM Capacity | 2048 GB | 6 TB+200% |
| RAM Channels | 8 | 12+50% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Virtualization support: true (Ryzen Threadripper PRO 9985WX) vs AMD-V, SEV-SNP (EPYC 9555). Primary use case: Ryzen Threadripper PRO 9985WX targets High-end Workstation, EPYC 9555 targets Data Center. Direct competitor: Ryzen Threadripper PRO 9985WX rivals Xeon w9-3475X; EPYC 9555 rivals Xeon 6972P.
| Feature | Ryzen Threadripper PRO 9985WX | EPYC 9555 |
|---|---|---|
| Integrated GPU | No | No |
| AVX-512 | Yes | — |
| Virtualization | true | AMD-V, SEV-SNP |
| Target Use | High-end Workstation | Data Center |
Value Analysis
The Ryzen Threadripper PRO 9985WX launched at $7999 MSRP, while the EPYC 9555 debuted at $9826. At current prices ($7999 vs $7973), the EPYC 9555 is $26 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 9985WX delivers 19.3 pts/$ vs 16.7 pts/$ for the EPYC 9555 — making the Ryzen Threadripper PRO 9985WX the 14.4% better value option.
| Feature | Ryzen Threadripper PRO 9985WX | EPYC 9555 |
|---|---|---|
| MSRP | $7999-19% | $9826 |
| Avg Price (30d) | $7999 | $7973 |
| Performance per Dollar | 19.3+16% | 16.7 |
| Release Date | 2025 | 2024 |
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