CPU
GPU
Ryzen Threadripper PRO 3945WX
Xeon D-2799
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 Xeon D-2799
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 3945WX | Xeon D-2799 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($100) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Castle Peak (2020) / 7 nm, 12 nm) | ✨ Modern (Ice Lake-D (2022−2023) / 10 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 3945WX | Xeon D-2799 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($100) | ✅ More affordable ($0) |
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 Xeon D-2799
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.
Xeon D-2799
The Xeon D-2799 is manufactured by Intel. It was released in 24 February 2022 (3 years ago). It is based on the Ice Lake-D (2022−2023) architecture. It features 20 cores and 40 threads. Base frequency is 2.4 GHz, with boost up to 3.4 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: FCBGA2579. Thermal design power (TDP): 129 Watt. Memory support: DDR4. Passmark benchmark score: 33,792 points. Launch price was $1,972.
Processing Power
The Ryzen Threadripper PRO 3945WX packs 12 cores / 24 threads, while the Xeon D-2799 offers 20 cores / 40 threads — the Xeon D-2799 has 8 more cores. Boost clocks reach 4.3 GHz on the Ryzen Threadripper PRO 3945WX versus 3.4 GHz on the Xeon D-2799 — a 23.4% clock advantage for the Ryzen Threadripper PRO 3945WX (base: 4 GHz vs 2.4 GHz). The Ryzen Threadripper PRO 3945WX uses the Castle Peak (2020) architecture (7 nm, 12 nm), while the Xeon D-2799 uses Ice Lake-D (2022−2023) (10 nm). In PassMark, the Ryzen Threadripper PRO 3945WX scores 33,455 against the Xeon D-2799's 33,792 — a 1% lead for the Xeon D-2799. Cinebench R23 multi-core: 18,500 vs 20,000 (7.8% advantage for the Xeon D-2799). Geekbench 6 single-core — the metric most relevant to gaming — records 1,652 vs 1,959, a 17% lead for the Xeon D-2799 that directly translates to higher frame rates. Multi-core Geekbench: 11,500 vs 1,895 (143.4% advantage for the Ryzen Threadripper PRO 3945WX). L3 cache: 64 MB on the Ryzen Threadripper PRO 3945WX vs 30 MB (total) on the Xeon D-2799.
| Feature | Ryzen Threadripper PRO 3945WX | Xeon D-2799 |
|---|---|---|
| Cores / Threads | 12 / 24 | 20 / 40+67% |
| Boost Clock | 4.3 GHz+26% | 3.4 GHz |
| Base Clock | 4 GHz+67% | 2.4 GHz |
| L3 Cache | 64 MB+113% | 30 MB (total) |
| L2 Cache | 512 kB (per core) | 1.25 MB (per core)+150% |
| Process | 7 nm, 12 nm-30% | 10 nm |
| Architecture | Castle Peak (2020) | Ice Lake-D (2022−2023) |
| PassMark | 33,455 | 33,792+1% |
| Cinebench R23 Multi | 18,500 | 20,000+8% |
| Geekbench 6 Single | 1,652 | 1,959+19% |
| Geekbench 6 Multi | 11,500+507% | 1,895 |
Memory & Platform
The Ryzen Threadripper PRO 3945WX uses the sWRX8 socket (PCIe 4.0), while the Xeon D-2799 uses FCBGA2579 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Ryzen Threadripper PRO 3945WX supports up to 2048 GB of RAM compared to 1024 GB — 66.7% more capacity for professional workloads. Memory channels: 8 (Ryzen Threadripper PRO 3945WX) vs 4 (Xeon D-2799). PCIe lanes: 128 (Ryzen Threadripper PRO 3945WX) vs 32 (Xeon D-2799) — the Ryzen Threadripper PRO 3945WX offers 96 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX80 (Ryzen Threadripper PRO 3945WX) and Ice Lake-D (Xeon D-2799).
| Feature | Ryzen Threadripper PRO 3945WX | Xeon D-2799 |
|---|---|---|
| Socket | sWRX8 | FCBGA2579 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | DDR4-3200 |
| Max RAM Capacity | 2048 GB+100% | 1024 GB |
| RAM Channels | 8+100% | 4 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+300% | 32 |
Advanced Features
Only the Ryzen Threadripper PRO 3945WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon D-2799 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen Threadripper PRO 3945WX) vs VT-x, VT-d, EPT (Xeon D-2799). Primary use case: Ryzen Threadripper PRO 3945WX targets Professional Workstation, Xeon D-2799 targets Edge Server / Networking. Direct competitor: Ryzen Threadripper PRO 3945WX rivals Xeon w5-2455X; Xeon D-2799 rivals EPYC 7302.
| Feature | Ryzen Threadripper PRO 3945WX | Xeon D-2799 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | VT-x, VT-d, EPT |
| Target Use | Professional Workstation | Edge Server / Networking |
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