
Athlon X4 845

Atom C3708
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 845 is positioned at rank 393 and the Atom C3708 is on rank 615, so the Athlon X4 845 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 845
Performance Per Dollar Atom C3708
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon X4 845 | Atom C3708 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Carrizo (2015−2018) / 28 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Athlon X4 845 | Atom C3708 |
|---|---|---|
| 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 Atom C3708

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.

Atom C3708
The Atom C3708 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 8 cores and 8 threads. Base frequency is 1.7 GHz, with boost up to 1.7 GHz. L3 cache: 16 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 17 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 3,750 points. Launch price was $209.
Processing Power
The Athlon X4 845 packs 4 cores / 4 threads, while the Atom C3708 offers 8 cores / 8 threads — the Atom C3708 has 4 more cores. Boost clocks reach 3.8 GHz on the Athlon X4 845 versus 1.7 GHz on the Atom C3708 — a 76.4% clock advantage for the Athlon X4 845 (base: 3.5 GHz vs 1.7 GHz). The Athlon X4 845 uses the Carrizo (2015−2018) architecture (28 nm), while the Atom C3708 uses Goldmont (2016−2017) (14 nm). In PassMark, the Athlon X4 845 scores 3,768 against the Atom C3708's 3,750 — a 0.5% lead for the Athlon X4 845.
| Feature | Athlon X4 845 | Atom C3708 |
|---|---|---|
| Cores / Threads | 4 / 4 | 8 / 8+100% |
| Boost Clock | 3.8 GHz+124% | 1.7 GHz |
| Base Clock | 3.5 GHz+106% | 1.7 GHz |
| L3 Cache | — | 16 MB |
| L2 Cache | 2 MB | 16 MB+700% |
| Process | 28 nm | 14 nm-50% |
| Architecture | Carrizo (2015−2018) | Goldmont (2016−2017) |
| PassMark | 3,768 | 3,750 |
Memory & Platform
The Athlon X4 845 uses the FM2+ socket (PCIe 3.0), while the Atom C3708 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-2133 on the Athlon X4 845 versus DDR4-2133 on the Atom C3708 — the Atom C3708 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom C3708 supports up to 256 GB of RAM compared to 64 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 8 (Athlon X4 845) vs 16 (Atom C3708) — the Atom C3708 offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FM2+ (Athlon X4 845) and Intel FCBGA1310 (Atom C3708).
| Feature | Athlon X4 845 | Atom C3708 |
|---|---|---|
| Socket | FM2+ | FCBGA1310 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR3-2133 | DDR4-2133+33% |
| Max RAM Capacity | 64 GB | 256 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 8 | 16+100% |
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