FX-4100 vs Ryzen 9 5900X
FX-4100
Ryzen 9 5900X
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. The FX-4100 is positioned at rank #728 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 FX-4100
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | FX-4100 | Ryzen 9 5900X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($20) | ⚠️ Higher cost ($350) |
| Longevity | 🛑 Legacy (Zambezi (2011−2012) / 32 nm) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | FX-4100 | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+18%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($20) | ⚠️ Higher cost ($350) |
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 FX-4100 and Ryzen 9 5900X
FX-4100
The FX-4100 is manufactured by AMD. It was released in 12 October 2011 (14 years ago). It is based on the Zambezi (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 3.6 GHz, with boost up to 3.8 GHz. L3 cache: 8192 kB. L2 cache: 4096 kB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,630 points. Launch price was $69.
Ryzen 9 5900X
The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.
Processing Power
The FX-4100 packs 4 cores / 4 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 8 more cores. Boost clocks reach 3.8 GHz on the FX-4100 versus 4.8 GHz on the Ryzen 9 5900X — a 23.3% clock advantage for the Ryzen 9 5900X (base: 3.6 GHz vs 3.7 GHz). The FX-4100 uses the Zambezi (2011−2012) architecture (32 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the FX-4100 scores 2,630 against the Ryzen 9 5900X's 38,955 — a 174.7% lead for the Ryzen 9 5900X. L3 cache: 8192 kB on the FX-4100 vs 64 MB on the Ryzen 9 5900X.
| Feature | FX-4100 | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 4 / 4 | 12 / 24+200% |
| Boost Clock | 3.8 GHz | 4.8 GHz+26% |
| Base Clock | 3.6 GHz | 3.7 GHz+3% |
| L3 Cache | 8192 kB | 64 MB+700% |
| L2 Cache | 4096 kB+700% | 512K (per core) |
| Process | 32 nm | 7 nm, 12 nm-78% |
| Architecture | Zambezi (2011−2012) | Vermeer (Zen3) (2020−2022) |
| PassMark | 2,630 | 38,955+1381% |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | — | 2,174 |
| Geekbench 6 Multi | — | 11,888 |
Memory & Platform
The FX-4100 uses the AM3+ socket (PCIe 2.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | FX-4100 | Ryzen 9 5900X |
|---|---|---|
| Socket | AM3+ | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 24 |
Advanced Features
Virtualization: not specified (FX-4100) / AMD-V (Ryzen 9 5900X). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K.
| Feature | FX-4100 | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Workstation |
Value Analysis
The FX-4100 launched at $115 MSRP, while the Ryzen 9 5900X debuted at $549. At current prices ($20 vs $350), the FX-4100 is $330 cheaper. In terms of value (PassMark points per dollar), the FX-4100 delivers 131.5 pts/$ vs 111.3 pts/$ for the Ryzen 9 5900X — making the FX-4100 the 16.6% better value option.
| Feature | FX-4100 | Ryzen 9 5900X |
|---|---|---|
| MSRP | $115-79% | $549 |
| Avg Price (30d) | $20-94% | $350 |
| Performance per Dollar | 131.5+18% | 111.3 |
| Release Date | 2011 | 2020 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on FX-4100 and Ryzen 9 5900X
