
Athlon X4 845

Pentium Gold G6405
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 Athlon X4 845 is positioned at rank #393 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 Athlon X4 845
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon X4 845 | Pentium Gold G6405 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Carrizo (2015−2018) / 28 nm) | ✨ Modern (Comet Lake-R (2021) / 14 nm) |
💎 Value Proposition
| Insight | Athlon X4 845 | Pentium Gold G6405 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ 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 Athlon X4 845 and Pentium Gold G6405

Athlon X4 845
The Athlon X4 845 is manufactured by AMD. It was released in 2009-01-01. It is based on the Carrizo (2015−2018) architecture. It features 4 cores and 4 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L2 cache: 2 MB. Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 Watt. Memory support: DDR3-2133. Passmark benchmark score: 3,768 points. Launch price was $149.

Pentium Gold G6405
The Pentium Gold G6405 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 2 cores and 4 threads. Base frequency is 4.1 GHz, with boost up to 4.1 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2666. Passmark benchmark score: 3,817 points. Launch price was $64.
Processing Power
The Athlon X4 845 packs 4 cores / 4 threads, while the Pentium Gold G6405 offers 2 cores / 4 threads — the Athlon X4 845 has 2 more cores. Boost clocks reach 3.8 GHz on the Athlon X4 845 versus 4.1 GHz on the Pentium Gold G6405 — a 7.6% clock advantage for the Pentium Gold G6405 (base: 3.5 GHz vs 4.1 GHz). The Athlon X4 845 uses the Carrizo (2015−2018) architecture (28 nm), while the Pentium Gold G6405 uses Comet Lake-R (2021) (14 nm). In PassMark, the Athlon X4 845 scores 3,768 against the Pentium Gold G6405's 3,817 — a 1.3% lead for the Pentium Gold G6405.
| Feature | Athlon X4 845 | Pentium Gold G6405 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 3.8 GHz | 4.1 GHz+8% |
| Base Clock | 3.5 GHz | 4.1 GHz+17% |
| L3 Cache | — | 4 MB (total) |
| L2 Cache | 2 MB+700% | 256 kB (per core) |
| Process | 28 nm | 14 nm-50% |
| Architecture | Carrizo (2015−2018) | Comet Lake-R (2021) |
| PassMark | 3,768 | 3,817+1% |
Memory & Platform
The Athlon X4 845 uses the FM2+ socket (PCIe 3.0), while the Pentium Gold G6405 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Athlon X4 845 | Pentium Gold G6405 |
|---|---|---|
| Socket | FM2+ | LGA1200 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR3-2133 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 8 | — |
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