CPU
GPU
Ryzen 7 3800X
Ryzen 5 7640HS
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Ryzen 7 3800X
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 3800X | Ryzen 5 7640HS |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($140) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Matisse (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Phoenix-HS (Zen 4) (2023) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 7 3800X | Ryzen 5 7640HS |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($140) | ✅ 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 Ryzen 7 3800X and Ryzen 5 7640HS
Ryzen 7 3800X
The Ryzen 7 3800X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.9 GHz, with boost up to 4.5 GHz. L3 cache: 32 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 Dual-channel. Passmark benchmark score: 23,008 points. Launch price was $399.
Ryzen 5 7640HS
The Ryzen 5 7640HS is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix-HS (Zen 4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 4.3 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5. Passmark benchmark score: 22,921 points. Launch price was $299.
Processing Power
The Ryzen 7 3800X packs 8 cores / 16 threads, while the Ryzen 5 7640HS offers 6 cores / 12 threads — the Ryzen 7 3800X has 2 more cores. Boost clocks reach 4.5 GHz on the Ryzen 7 3800X versus 5 GHz on the Ryzen 5 7640HS — a 10.5% clock advantage for the Ryzen 5 7640HS (base: 3.9 GHz vs 4.3 GHz). The Ryzen 7 3800X uses the Matisse (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 5 7640HS uses Phoenix-HS (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 7 3800X scores 23,008 against the Ryzen 5 7640HS's 22,921 — a 0.4% lead for the Ryzen 7 3800X. L3 cache: 32 MB on the Ryzen 7 3800X vs 16 MB (total) on the Ryzen 5 7640HS.
| Feature | Ryzen 7 3800X | Ryzen 5 7640HS |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 12 |
| Boost Clock | 4.5 GHz | 5 GHz+11% |
| Base Clock | 3.9 GHz | 4.3 GHz+10% |
| L3 Cache | 32 MB+100% | 16 MB (total) |
| L2 Cache | 512K (per core) | 1 MB (per core)+100% |
| Process | 7 nm, 12 nm | 4 nm-43% |
| Architecture | Matisse (2019−2020) | Phoenix-HS (Zen 4) (2023) |
| PassMark | 23,008 | 22,921 |
Memory & Platform
The Ryzen 7 3800X uses the AM4 socket (PCIe 4.0), while the Ryzen 5 7640HS uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 7 3800X | Ryzen 5 7640HS |
|---|---|---|
| Socket | AM4 | FP8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 24 | — |
Advanced Features
Virtualization: AMD-V (Ryzen 7 3800X) / not specified (Ryzen 5 7640HS). Primary use case: Ryzen 7 3800X targets Desktop.
| Feature | Ryzen 7 3800X | Ryzen 5 7640HS |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Desktop | — |
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