Ryzen Threadripper PRO 9945WX vs EPYC 7443
Ryzen Threadripper PRO 9945WX
EPYC 7443
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 9945WX
Performance Per Dollar EPYC 7443
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 9945WX | EPYC 7443 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($1,340) | ⚠️ Higher cost ($1,800) |
| Longevity | ✨ Modern (Shimada Peak (2025) / 4 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 9945WX | EPYC 7443 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+35%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($1,340) | ⚠️ Higher cost ($1,800) |
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 9945WX and EPYC 7443
Ryzen Threadripper PRO 9945WX
The Ryzen Threadripper PRO 9945WX is manufactured by AMD. It was released in 2025-01-01. It is based on the Shimada Peak (2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 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: 56,854 points. Launch price was $2,000.
EPYC 7443
The EPYC 7443 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,743 points. Launch price was $2,010.
Processing Power
The Ryzen Threadripper PRO 9945WX packs 12 cores / 24 threads, while the EPYC 7443 offers 24 cores / 48 threads — the EPYC 7443 has 12 more cores. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9945WX versus 4 GHz on the EPYC 7443 — a 29.8% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 4.7 GHz vs 2.85 GHz). The Ryzen Threadripper PRO 9945WX uses the Shimada Peak (2025) architecture (4 nm), while the EPYC 7443 uses Milan (2021−2023) (7 nm+). In PassMark, the Ryzen Threadripper PRO 9945WX scores 56,854 against the EPYC 7443's 56,743 — a 0.2% lead for the Ryzen Threadripper PRO 9945WX. L3 cache: 64 MB (total) on the Ryzen Threadripper PRO 9945WX vs 128 MB (total) on the EPYC 7443.
| Feature | Ryzen Threadripper PRO 9945WX | EPYC 7443 |
|---|---|---|
| Cores / Threads | 12 / 24 | 24 / 48+100% |
| Boost Clock | 5.4 GHz+35% | 4 GHz |
| Base Clock | 4.7 GHz+65% | 2.85 GHz |
| L3 Cache | 64 MB (total) | 128 MB (total)+100% |
| L2 Cache | 1 MB (per core)+100% | 512 kB (per core) |
| Process | 4 nm-43% | 7 nm+ |
| Architecture | Shimada Peak (2025) | Milan (2021−2023) |
| PassMark | 56,854 | 56,743 |
Memory & Platform
The Ryzen Threadripper PRO 9945WX uses the sTR5 socket (PCIe 4.0), while the EPYC 7443 uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the Ryzen Threadripper PRO 9945WX versus 3200 on the EPYC 7443 — the Ryzen Threadripper PRO 9945WX supports 66.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7443 supports up to 4096 of RAM compared to 2048 — 66.7% more capacity for professional workloads. Both feature 8-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: WRX90,TRX50 (Ryzen Threadripper PRO 9945WX) and SP3 (EPYC 7443).
| Feature | Ryzen Threadripper PRO 9945WX | EPYC 7443 |
|---|---|---|
| Socket | sTR5 | SP3 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 6400+100% | 3200 |
| Max RAM Capacity | 2048 | 4096+100% |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Only the Ryzen Threadripper PRO 9945WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen Threadripper PRO 9945WX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX) vs VT-x, VT-d (EPYC 7443). Direct competitor: Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545; EPYC 7443 rivals Xeon Platinum 8362.
| Feature | Ryzen Threadripper PRO 9945WX | EPYC 7443 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d, AMD-V | VT-x, VT-d |
Value Analysis
The Ryzen Threadripper PRO 9945WX launched at $1340 MSRP, while the EPYC 7443 debuted at $2010. At current prices ($1340 vs $1800), the Ryzen Threadripper PRO 9945WX is $460 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 9945WX delivers 42.4 pts/$ vs 31.5 pts/$ for the EPYC 7443 — making the Ryzen Threadripper PRO 9945WX the 29.5% better value option.
| Feature | Ryzen Threadripper PRO 9945WX | EPYC 7443 |
|---|---|---|
| MSRP | $1340-33% | $2010 |
| Avg Price (30d) | $1340-26% | $1800 |
| Performance per Dollar | 42.4+35% | 31.5 |
| Release Date | 2025 | 2021 |
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