EPYC 7443 vs Ryzen Threadripper PRO 9945WX
EPYC 7443
Ryzen Threadripper PRO 9945WX
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 7443
Performance Per Dollar Ryzen Threadripper PRO 9945WX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($1,800) | ✅ More affordable ($1,340) |
| Longevity | ✨ Modern (Milan (2021−2023) / 7 nm+) | ✨ Modern (Shimada Peak (2025) / 4 nm) |
💎 Value Proposition
| Insight | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+35%) |
| Upfront Cost | ⚠️ Higher cost ($1,800) | ✅ More affordable ($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 EPYC 7443 and Ryzen Threadripper PRO 9945WX
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.
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.
Processing Power
The EPYC 7443 packs 24 cores / 48 threads, while the Ryzen Threadripper PRO 9945WX offers 12 cores / 24 threads — the EPYC 7443 has 12 more cores. Boost clocks reach 4 GHz on the EPYC 7443 versus 5.4 GHz on the Ryzen Threadripper PRO 9945WX — a 29.8% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 2.85 GHz vs 4.7 GHz). The EPYC 7443 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen Threadripper PRO 9945WX uses Shimada Peak (2025) (4 nm). In PassMark, the EPYC 7443 scores 56,743 against the Ryzen Threadripper PRO 9945WX's 56,854 — a 0.2% lead for the Ryzen Threadripper PRO 9945WX. L3 cache: 128 MB (total) on the EPYC 7443 vs 64 MB (total) on the Ryzen Threadripper PRO 9945WX.
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Cores / Threads | 24 / 48+100% | 12 / 24 |
| Boost Clock | 4 GHz | 5.4 GHz+35% |
| Base Clock | 2.85 GHz | 4.7 GHz+65% |
| L3 Cache | 128 MB (total)+100% | 64 MB (total) |
| L2 Cache | 512 kB (per core) | 1 MB (per core)+100% |
| Process | 7 nm+ | 4 nm-43% |
| Architecture | Milan (2021−2023) | Shimada Peak (2025) |
| PassMark | 56,743 | 56,854 |
Memory & Platform
The EPYC 7443 uses the SP3 socket (PCIe 4.0), while the Ryzen Threadripper PRO 9945WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7443 versus 6400 on the Ryzen Threadripper PRO 9945WX — 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: SP3 (EPYC 7443) and WRX90,TRX50 (Ryzen Threadripper PRO 9945WX).
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Socket | SP3 | sTR5 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200 | 6400+100% |
| Max RAM Capacity | 4096+100% | 2048 |
| 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 (EPYC 7443) vs VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX). Direct competitor: EPYC 7443 rivals Xeon Platinum 8362; Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545.
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d, AMD-V |
Value Analysis
The EPYC 7443 launched at $2010 MSRP, while the Ryzen Threadripper PRO 9945WX debuted at $1340. At current prices ($1800 vs $1340), the Ryzen Threadripper PRO 9945WX is $460 cheaper. In terms of value (PassMark points per dollar), the EPYC 7443 delivers 31.5 pts/$ vs 42.4 pts/$ for the Ryzen Threadripper PRO 9945WX — making the Ryzen Threadripper PRO 9945WX the 29.5% better value option.
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| MSRP | $2010 | $1340-33% |
| Avg Price (30d) | $1800 | $1340-26% |
| Performance per Dollar | 31.5 | 42.4+35% |
| Release Date | 2021 | 2025 |
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