Athlon X4 840 vs FX-4150
Athlon X4 840
FX-4150
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. The Athlon X4 840 is positioned at rank 563 and the FX-4150 is on rank 702, so the Athlon X4 840 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon X4 840
Performance Per Dollar FX-4150
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon X4 840 | FX-4150 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($25) | ✅ More affordable ($20) |
| Longevity | 🛑 Legacy (Kaveri (2014−2015) / 28 nm) | 🛑 Legacy (Zambezi (2011−2012) / 32 nm) |
💎 Value Proposition
| Insight | Athlon X4 840 | FX-4150 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+25%) |
| Upfront Cost | ⚠️ Higher cost ($25) | ✅ More affordable ($20) |
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 Athlon X4 840 and FX-4150
Athlon X4 840
The Athlon X4 840 is manufactured by AMD. It was released in 2009-01-01. It is based on the Kaveri (2014−2015) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.8 GHz. L2 cache: 4 MB. Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 watt. Memory support: DDR3. Passmark benchmark score: 3,331 points. Launch price was $149.
FX-4150
The FX-4150 is manufactured by AMD. It was released in 23 October 2012 (13 years ago). It is based on the Zambezi (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 3.8 GHz, with boost up to 4 GHz. L3 cache: 8 MB (total). L2 cache: 4 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,327 points. Launch price was $69.
Processing Power
Both the Athlon X4 840 and FX-4150 share an identical 4-core/4-thread configuration. Boost clocks reach 3.8 GHz on the Athlon X4 840 versus 4 GHz on the FX-4150 — a 5.1% clock advantage for the FX-4150 (base: 3.1 GHz vs 3.8 GHz). The Athlon X4 840 uses the Kaveri (2014−2015) architecture (28 nm), while the FX-4150 uses Zambezi (2011−2012) (32 nm). In PassMark, the Athlon X4 840 scores 3,331 against the FX-4150's 3,327 — a 0.1% lead for the Athlon X4 840.
| Feature | Athlon X4 840 | FX-4150 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 3.8 GHz | 4 GHz+5% |
| Base Clock | 3.1 GHz | 3.8 GHz+23% |
| L3 Cache | — | 8 MB (total) |
| L2 Cache | 4 MB | 4 MB |
| Process | 28 nm-13% | 32 nm |
| Architecture | Kaveri (2014−2015) | Zambezi (2011−2012) |
| PassMark | 3,331 | 3,327 |
Memory & Platform
The Athlon X4 840 uses the FM2+ socket (PCIe 3.0), while the FX-4150 uses AM3+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Athlon X4 840 | FX-4150 |
|---|---|---|
| Socket | FM2+ | AM3+ |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3-2133 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Value Analysis
The Athlon X4 840 launched at $102 MSRP, while the FX-4150 debuted at $137. At current prices ($25 vs $20), the FX-4150 is $5 cheaper. In terms of value (PassMark points per dollar), the Athlon X4 840 delivers 133.2 pts/$ vs 166.3 pts/$ for the FX-4150 — making the FX-4150 the 22.1% better value option.
| Feature | Athlon X4 840 | FX-4150 |
|---|---|---|
| MSRP | $102-26% | $137 |
| Avg Price (30d) | $25 | $20-20% |
| Performance per Dollar | 133.2 | 166.3+25% |
| Release Date | 2014 | 2012 |
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