Ryzen 9 7950X3D vs Pentium III 1400S
Ryzen 9 7950X3D
Pentium III 1400S
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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 9 7950X3D
Performance Per Dollar Pentium III 1400S
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 7950X3D | Pentium III 1400S |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($486) | ✅ More affordable ($250) |
| Longevity | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm, 6 nm) | 🛑 Legacy (Tualatin (2000−2002) / 130 nm) |
💎 Value Proposition
| Insight | Ryzen 9 7950X3D | Pentium III 1400S |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+13961%) | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($486) | ✅ More affordable ($250) |
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 9 7950X3D and Pentium III 1400S
Ryzen 9 7950X3D
The Ryzen 9 7950X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 62,323 points. Launch price was $699.
Pentium III 1400S
The Pentium III 1400S is manufactured by Intel. It was released in 2007-01-01. It is based on the Tualatin (2000−2002) architecture. It features 1 cores and 1 threads. Max frequency: 1.4 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA370. Thermal design power (TDP): 32 Watt. Passmark benchmark score: 228 points. Launch price was $69.
Processing Power
The Ryzen 9 7950X3D packs 16 cores / 32 threads, while the Pentium III 1400S offers 1 cores / 1 threads — the Ryzen 9 7950X3D has 15 more cores. Boost clocks reach 5.7 GHz on the Ryzen 9 7950X3D versus 1.4 GHz on the Pentium III 1400S — a 121.1% clock advantage for the Ryzen 9 7950X3D. The Ryzen 9 7950X3D uses the Raphael (Zen4) (2022−2023) architecture (5 nm, 6 nm), while the Pentium III 1400S uses Tualatin (2000−2002) (130 nm). In PassMark, the Ryzen 9 7950X3D scores 62,323 against the Pentium III 1400S's 228 — a 198.5% lead for the Ryzen 9 7950X3D. L3 cache: 128 MB (total) on the Ryzen 9 7950X3D vs 0 kB on the Pentium III 1400S.
| Feature | Ryzen 9 7950X3D | Pentium III 1400S |
|---|---|---|
| Cores / Threads | 16 / 32+1500% | 1 / 1 |
| Boost Clock | 5.7 GHz+307% | 1.4 GHz |
| Base Clock | 4.2 GHz | — |
| L3 Cache | 128 MB (total) | 0 kB |
| L2 Cache | 1 MB (per core)+100% | 512 kB |
| Process | 5 nm, 6 nm-96% | 130 nm |
| Architecture | Raphael (Zen4) (2022−2023) | Tualatin (2000−2002) |
| PassMark | 62,323+27235% | 228 |
| Cinebench R23 Multi | 38,581 | — |
| Geekbench 6 Single | 2,926 | — |
| Geekbench 6 Multi | 19,643 | — |
Memory & Platform
The Ryzen 9 7950X3D uses the AM5 socket (PCIe 5.0), while the Pentium III 1400S uses PGA370 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7950X3D versus PC133 on the Pentium III 1400S — the Pentium III 1400S supports 185.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 7950X3D supports up to 128 GB of RAM compared to 4 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 7950X3D) vs 1 (Pentium III 1400S). PCIe lanes: 28 (Ryzen 9 7950X3D) vs 0 (Pentium III 1400S) — the Ryzen 9 7950X3D offers 28 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD X670E,AMD X670,AMD B650E,AMD B650 (Ryzen 9 7950X3D) and Intel 815,VIA Apollo Pro 133T (Pentium III 1400S).
| Feature | Ryzen 9 7950X3D | Pentium III 1400S |
|---|---|---|
| Socket | AM5 | PGA370 |
| PCIe Generation | PCIe 5.0+355% | PCIe 1.1 |
| Max RAM Speed | DDR5-5200 | PC133+2560% |
| Max RAM Capacity | 128 GB+3100% | 4 GB |
| RAM Channels | 2+100% | 1 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 0 |
Advanced Features
Only the Ryzen 9 7950X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Ryzen 9 7950X3D) vs No (Pentium III 1400S). The Ryzen 9 7950X3D includes integrated graphics (Radeon Graphics), while the Pentium III 1400S requires a dedicated GPU. Direct competitor: Ryzen 9 7950X3D rivals Core i9-13900K.
| Feature | Ryzen 9 7950X3D | Pentium III 1400S |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon Graphics | — |
| Unlocked | Yes | — |
| AVX-512 | Yes | No |
| Virtualization | true | No |
Value Analysis
The Ryzen 9 7950X3D launched at $699 MSRP, while the Pentium III 1400S debuted at $250. At current prices ($486 vs $250), the Pentium III 1400S is $236 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 7950X3D delivers 128.2 pts/$ vs 0.9 pts/$ for the Pentium III 1400S — making the Ryzen 9 7950X3D the 197.2% better value option.
| Feature | Ryzen 9 7950X3D | Pentium III 1400S |
|---|---|---|
| MSRP | $699 | $250-64% |
| Avg Price (30d) | $486 | $250-49% |
| Performance per Dollar | 128.2+14144% | 0.9 |
| Release Date | 2023 | 2002 |
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