Ryzen Threadripper PRO 9955WX vs EPYC 7H12
Ryzen Threadripper PRO 9955WX
EPYC 7H12
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 9955WX
Performance Per Dollar EPYC 7H12
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 9955WX | EPYC 7H12 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($450) | ⚠️ Higher cost ($1,340) |
| Longevity | ✨ Modern (Shimada Peak (2025) / 4 nm) | ✨ Modern (Zen 2 (2017−2020) / 7 nm, 14 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 9955WX | EPYC 7H12 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+189%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($450) | ⚠️ Higher cost ($1,340) |
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 9955WX and EPYC 7H12
Ryzen Threadripper PRO 9955WX
The Ryzen Threadripper PRO 9955WX 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 16 cores and 32 threads. Base frequency is 4.5 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: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 67,561 points. Launch price was $1,649.
EPYC 7H12
The EPYC 7H12 is manufactured by AMD. It was released in 2019-09-18. It is based on the Zen 2 (2017−2020) architecture. It features 64 cores and 128 threads. Base frequency is 2.6 GHz, with boost up to 3.3 GHz. L3 cache: 256 MB (total). L2 cache: 512K (per core). Built on 7 nm, 14 nm process technology. Socket: TR4. Thermal design power (TDP): 280 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 69,633 points. Launch price was $6,950.
Processing Power
The Ryzen Threadripper PRO 9955WX packs 16 cores / 32 threads, while the EPYC 7H12 offers 64 cores / 128 threads — the EPYC 7H12 has 48 more cores. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9955WX versus 3.3 GHz on the EPYC 7H12 — a 48.3% clock advantage for the Ryzen Threadripper PRO 9955WX (base: 4.5 GHz vs 2.6 GHz). The Ryzen Threadripper PRO 9955WX uses the Shimada Peak (2025) architecture (4 nm), while the EPYC 7H12 uses Zen 2 (2017−2020) (7 nm, 14 nm). In PassMark, the Ryzen Threadripper PRO 9955WX scores 67,561 against the EPYC 7H12's 69,633 — a 3% lead for the EPYC 7H12. L3 cache: 64 MB (total) on the Ryzen Threadripper PRO 9955WX vs 256 MB (total) on the EPYC 7H12.
| Feature | Ryzen Threadripper PRO 9955WX | EPYC 7H12 |
|---|---|---|
| Cores / Threads | 16 / 32 | 64 / 128+300% |
| Boost Clock | 5.4 GHz+64% | 3.3 GHz |
| Base Clock | 4.5 GHz+73% | 2.6 GHz |
| L3 Cache | 64 MB (total) | 256 MB (total)+300% |
| L2 Cache | 1 MB (per core)+100% | 512K (per core) |
| Process | 4 nm-43% | 7 nm, 14 nm |
| Architecture | Shimada Peak (2025) | Zen 2 (2017−2020) |
| PassMark | 67,561 | 69,633+3% |
| Cinebench R23 Multi | 40,000 | — |
| Geekbench 6 Single | 3,016 | — |
| Geekbench 6 Multi | 23,596 | — |
Memory & Platform
The Ryzen Threadripper PRO 9955WX uses the sTR5 socket (PCIe 4.0), while the EPYC 7H12 uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Ryzen Threadripper PRO 9955WX versus 3200 on the EPYC 7H12 — the EPYC 7H12 supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7H12 supports up to 4096 of RAM compared to 2048 GB — 66.7% more capacity for professional workloads. Both feature 8-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: WRX90 (Ryzen Threadripper PRO 9955WX) and SP3 (EPYC 7H12).
| Feature | Ryzen Threadripper PRO 9955WX | EPYC 7H12 |
|---|---|---|
| Socket | sTR5 | TR4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR5-6400 | 3200+63900% |
| Max RAM Capacity | 2048 GB+52428700% | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Only the Ryzen Threadripper PRO 9955WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen Threadripper PRO 9955WX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Ryzen Threadripper PRO 9955WX) vs VT-x, VT-d (EPYC 7H12). Direct competitor: Ryzen Threadripper PRO 9955WX rivals Xeon w7-3555; EPYC 7H12 rivals Xeon Platinum 8280.
| Feature | Ryzen Threadripper PRO 9955WX | EPYC 7H12 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | No |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Ryzen Threadripper PRO 9955WX launched at $429 MSRP, while the EPYC 7H12 debuted at $6950. At current prices ($450 vs $1340), the Ryzen Threadripper PRO 9955WX is $890 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 9955WX delivers 150.1 pts/$ vs 52.0 pts/$ for the EPYC 7H12 — making the Ryzen Threadripper PRO 9955WX the 97.2% better value option.
| Feature | Ryzen Threadripper PRO 9955WX | EPYC 7H12 |
|---|---|---|
| MSRP | $429-94% | $6950 |
| Avg Price (30d) | $450-66% | $1340 |
| Performance per Dollar | 150.1+189% | 52.0 |
| Release Date | 2025 | 2019 |
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