Athlon II X2 280 vs Pentium G840
Athlon II X2 280
Pentium G840
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 II X2 280 is positioned at rank 638 and the Pentium G840 is on rank 764, so the Athlon II X2 280 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon II X2 280
Performance Per Dollar Pentium G840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X2 280 | Pentium G840 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Regor (2009−2013) / 45 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Athlon II X2 280 | Pentium G840 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1%) |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 II X2 280 and Pentium G840
Athlon II X2 280
The Athlon II X2 280 is manufactured by AMD. It was released in 6 February 2013 (12 years ago). It is based on the Regor (2009−2013) architecture. It features 2 cores and 2 threads. Base frequency is 3.6 GHz, with boost up to 3.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,355 points. Launch price was $100.
Pentium G840
The Pentium G840 is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,367 points. Launch price was $60.
Processing Power
Both the Athlon II X2 280 and Pentium G840 share an identical 2-core/2-thread configuration. Boost clocks reach 3.6 GHz on the Athlon II X2 280 versus 2.8 GHz on the Pentium G840 — a 25% clock advantage for the Athlon II X2 280 (base: 3.6 GHz vs 2.8 GHz). The Athlon II X2 280 uses the Regor (2009−2013) architecture (45 nm), while the Pentium G840 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Athlon II X2 280 scores 1,355 against the Pentium G840's 1,367 — a 0.9% lead for the Pentium G840. L3 cache: 0 kB on the Athlon II X2 280 vs 3 MB (total) on the Pentium G840.
| Feature | Athlon II X2 280 | Pentium G840 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 3.6 GHz+29% | 2.8 GHz |
| Base Clock | 3.6 GHz+29% | 2.8 GHz |
| L3 Cache | 0 kB | 3 MB (total) |
| L2 Cache | 1 MB+300% | 256 kB (per core) |
| Process | 45 nm | 32 nm-29% |
| Architecture | Regor (2009−2013) | Sandy Bridge (2011−2013) |
| PassMark | 1,355 | 1,367 |
| Geekbench 6 Single | 290 | — |
| Geekbench 6 Multi | 550 | — |
Memory & Platform
The Athlon II X2 280 uses the AM3 socket (PCIe 2.0), while the Pentium G840 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Athlon II X2 280 | Pentium G840 |
|---|---|---|
| Socket | AM3 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: AMD-V (Athlon II X2 280) / not specified (Pentium G840). Primary use case: Athlon II X2 280 targets Legacy Desktop. Direct competitor: Athlon II X2 280 rivals Pentium E6700.
| Feature | Athlon II X2 280 | Pentium G840 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Legacy Desktop | — |
Value Analysis
The Athlon II X2 280 launched at $50 MSRP, while the Pentium G840 debuted at $64. At current prices ($15 vs $15), the Pentium G840 is $0 cheaper. In terms of value (PassMark points per dollar), the Athlon II X2 280 delivers 90.3 pts/$ vs 91.1 pts/$ for the Pentium G840 — making the Pentium G840 the 0.9% better value option.
| Feature | Athlon II X2 280 | Pentium G840 |
|---|---|---|
| MSRP | $50-22% | $64 |
| Avg Price (30d) | $15 | $15 |
| Performance per Dollar | 90.3 | 91.1 |
| Release Date | 2013 | 2011 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Athlon II X2 280 and Pentium G840
