Ryzen Threadripper PRO 3945WX vs Core i5-12400F
Ryzen Threadripper PRO 3945WX
Core i5-12400F
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 3945WX
Performance Per Dollar Core i5-12400F
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 3945WX | Core i5-12400F |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($100) | ⚠️ Higher cost ($110) |
| Longevity | ✨ Modern (Castle Peak (2020) / 7 nm, 12 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 3945WX | Core i5-12400F |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+88%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($100) | ⚠️ Higher cost ($110) |
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 3945WX and Core i5-12400F
Ryzen Threadripper PRO 3945WX
The Ryzen Threadripper PRO 3945WX is manufactured by AMD. It was released in 14 July 2020 (5 years ago). It is based on the Castle Peak (2020) architecture. It features 12 cores and 24 threads. Base frequency is 4 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (per core). Built on 7 nm, 12 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 33,455 points. Launch price was $499.
Core i5-12400F
The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.
Processing Power
The Ryzen Threadripper PRO 3945WX packs 12 cores / 24 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Ryzen Threadripper PRO 3945WX has 6 more cores. Boost clocks reach 4.3 GHz on the Ryzen Threadripper PRO 3945WX versus 4.4 GHz on the Core i5-12400F — a 2.3% clock advantage for the Core i5-12400F (base: 4 GHz vs 2.5 GHz). The Ryzen Threadripper PRO 3945WX uses the Castle Peak (2020) architecture (7 nm, 12 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Ryzen Threadripper PRO 3945WX scores 33,455 against the Core i5-12400F's 19,532 — a 52.6% lead for the Ryzen Threadripper PRO 3945WX. Cinebench R23 multi-core: 18,500 vs 12,380 (39.6% advantage for the Ryzen Threadripper PRO 3945WX). Geekbench 6 single-core — the metric most relevant to gaming — records 1,652 vs 1,700, a 2.9% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 11,500 vs 657 (178.4% advantage for the Ryzen Threadripper PRO 3945WX). L3 cache: 64 MB on the Ryzen Threadripper PRO 3945WX vs 18 MB (total) on the Core i5-12400F.
| Feature | Ryzen Threadripper PRO 3945WX | Core i5-12400F |
|---|---|---|
| Cores / Threads | 12 / 24+100% | 6 / 12 |
| Boost Clock | 4.3 GHz | 4.4 GHz+2% |
| Base Clock | 4 GHz+60% | 2.5 GHz |
| L3 Cache | 64 MB+256% | 18 MB (total) |
| L2 Cache | 512 kB (per core) | 1.25 MB (per core)+150% |
| Process | 7 nm, 12 nm | Intel 7 nm |
| Architecture | Castle Peak (2020) | Alder Lake-S (2022) |
| PassMark | 33,455+71% | 19,532 |
| Cinebench R23 Multi | 18,500+49% | 12,380 |
| Geekbench 6 Single | 1,652 | 1,700+3% |
| Geekbench 6 Multi | 11,500+1650% | 657 |
Memory & Platform
The Ryzen Threadripper PRO 3945WX uses the sWRX8 socket (PCIe 4.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen Threadripper PRO 3945WX versus DDR5-4800, DDR4-3200 on the Core i5-12400F — the Core i5-12400F supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 3945WX supports up to 2048 GB of RAM compared to 128 GB — 176.5% more capacity for professional workloads. Memory channels: 8 (Ryzen Threadripper PRO 3945WX) vs 2 (Core i5-12400F). PCIe lanes: 128 (Ryzen Threadripper PRO 3945WX) vs 20 (Core i5-12400F) — the Ryzen Threadripper PRO 3945WX offers 108 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX80 (Ryzen Threadripper PRO 3945WX) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).
| Feature | Ryzen Threadripper PRO 3945WX | Core i5-12400F |
|---|---|---|
| Socket | sWRX8 | LGA1700 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR4-3200 | DDR5-4800, DDR4-3200+25% |
| Max RAM Capacity | 2048 GB+1500% | 128 GB |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 128+540% | 20 |
Advanced Features
Virtualization support: AMD-V (Ryzen Threadripper PRO 3945WX) vs VT-x, VT-d, EPT (Core i5-12400F). Primary use case: Ryzen Threadripper PRO 3945WX targets Professional Workstation, Core i5-12400F targets Gaming Performance/Value. Direct competitor: Ryzen Threadripper PRO 3945WX rivals Xeon w5-2455X; Core i5-12400F rivals Ryzen 5 5600.
| Feature | Ryzen Threadripper PRO 3945WX | Core i5-12400F |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | VT-x, VT-d, EPT |
| Target Use | Professional Workstation | Gaming Performance/Value |
Value Analysis
The Ryzen Threadripper PRO 3945WX launched at $1149 MSRP, while the Core i5-12400F debuted at $174. At current prices ($100 vs $110), the Ryzen Threadripper PRO 3945WX is $10 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 3945WX delivers 334.6 pts/$ vs 177.6 pts/$ for the Core i5-12400F — making the Ryzen Threadripper PRO 3945WX the 61.3% better value option.
| Feature | Ryzen Threadripper PRO 3945WX | Core i5-12400F |
|---|---|---|
| MSRP | $1149 | $174-85% |
| Avg Price (30d) | $100-9% | $110 |
| Performance per Dollar | 334.6+88% | 177.6 |
| Release Date | 2020 | 2022 |
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