Ryzen 7 5800 vs Ryzen 5 7645HX
Ryzen 7 5800
Ryzen 5 7645HX
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 5800
Performance Per Dollar Ryzen 5 7645HX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800 | Ryzen 5 7645HX |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($160) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Vermeer (2020−2025) / 7 nm, 12 nm) | ✨ Modern (Dragon Range (Zen4) (2023) / 5 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800 | Ryzen 5 7645HX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($160) | ✅ 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 5800 and Ryzen 5 7645HX
Ryzen 7 5800
The Ryzen 7 5800 is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (2020−2025) architecture. It features 8 cores and 16 threads. Base frequency is 3.4 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 25,735 points. Launch price was $299.
Ryzen 5 7645HX
The Ryzen 5 7645HX is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Dragon Range (Zen4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 4 GHz, with boost up to 5 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 45 Watt. Memory support: DDR5-5200. Passmark benchmark score: 26,097 points. Launch price was $299.
Processing Power
The Ryzen 7 5800 packs 8 cores / 16 threads, while the Ryzen 5 7645HX offers 6 cores / 12 threads — the Ryzen 7 5800 has 2 more cores. Boost clocks reach 4.6 GHz on the Ryzen 7 5800 versus 5 GHz on the Ryzen 5 7645HX — a 8.3% clock advantage for the Ryzen 5 7645HX (base: 3.4 GHz vs 4 GHz). The Ryzen 7 5800 uses the Vermeer (2020−2025) architecture (7 nm, 12 nm), while the Ryzen 5 7645HX uses Dragon Range (Zen4) (2023) (5 nm). In PassMark, the Ryzen 7 5800 scores 25,735 against the Ryzen 5 7645HX's 26,097 — a 1.4% lead for the Ryzen 5 7645HX. L3 cache: 32 MB on the Ryzen 7 5800 vs 32 MB (total) on the Ryzen 5 7645HX.
| Feature | Ryzen 7 5800 | Ryzen 5 7645HX |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 12 |
| Boost Clock | 4.6 GHz | 5 GHz+9% |
| Base Clock | 3.4 GHz | 4 GHz+18% |
| L3 Cache | 32 MB | 32 MB (total) |
| L2 Cache | 512K (per core) | 1 MB (per core)+100% |
| Process | 7 nm, 12 nm | 5 nm-29% |
| Architecture | Vermeer (2020−2025) | Dragon Range (Zen4) (2023) |
| PassMark | 25,735 | 26,097+1% |
| Cinebench R23 Multi | — | 13,985 |
| Geekbench 6 Single | — | 2,588 |
| Geekbench 6 Multi | — | 11,717 |
Memory & Platform
The Ryzen 7 5800 uses the AM4 socket (PCIe 4.0), while the Ryzen 5 7645HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 5800 versus DDR5-5200 on the Ryzen 5 7645HX — the Ryzen 5 7645HX supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5800 supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 5800) vs 28 (Ryzen 5 7645HX) — the Ryzen 5 7645HX offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Ryzen 7 5800 | Ryzen 5 7645HX |
|---|---|---|
| Socket | AM4 | FL1 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | DDR5-5200+25% |
| Max RAM Capacity | 128 GB+100% | 64 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 24 | 28+17% |
Advanced Features
Only the Ryzen 7 5800 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 5 7645HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 5800) vs AMD-V (SVM) (Ryzen 5 7645HX). The Ryzen 5 7645HX includes integrated graphics (Radeon 610M), while the Ryzen 7 5800 requires a dedicated GPU. Primary use case: Ryzen 7 5800 targets OEM Gaming, Ryzen 5 7645HX targets Gaming. Direct competitor: Ryzen 5 7645HX rivals Core i5-13500HX.
| Feature | Ryzen 7 5800 | Ryzen 5 7645HX |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon 610M |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | AMD-V (SVM) |
| Target Use | OEM Gaming | Gaming |
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