Ryzen 7 4700G vs Ryzen 5 8640U
Ryzen 7 4700G
Ryzen 5 8640U
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 4700G
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 4700G | Ryzen 5 8640U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($235) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Renoir (2020−2023) / 7 nm) | ✨ Modern (Hawk Point-U (Zen 4) (2023−2025) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 7 4700G | Ryzen 5 8640U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($235) | ✅ 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 4700G and Ryzen 5 8640U
Ryzen 7 4700G
The Ryzen 7 4700G is manufactured by AMD. It was released in 21 July 2020 (5 years ago). It is based on the Renoir (2020−2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 8 MB. L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 20,180 points. Launch price was $299.
Ryzen 5 8640U
The Ryzen 5 8640U is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-U (Zen 4) (2023−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 20,274 points. Launch price was $299.
Processing Power
The Ryzen 7 4700G packs 8 cores / 16 threads, while the Ryzen 5 8640U offers 6 cores / 12 threads — the Ryzen 7 4700G has 2 more cores. Boost clocks reach 4.4 GHz on the Ryzen 7 4700G versus 4.9 GHz on the Ryzen 5 8640U — a 10.8% clock advantage for the Ryzen 5 8640U (base: 3.6 GHz vs 3.5 GHz). The Ryzen 7 4700G uses the Renoir (2020−2023) architecture (7 nm), while the Ryzen 5 8640U uses Hawk Point-U (Zen 4) (2023−2025) (4 nm). In PassMark, the Ryzen 7 4700G scores 20,180 against the Ryzen 5 8640U's 20,274 — a 0.5% lead for the Ryzen 5 8640U. L3 cache: 8 MB on the Ryzen 7 4700G vs 16 MB (total) on the Ryzen 5 8640U.
| Feature | Ryzen 7 4700G | Ryzen 5 8640U |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 12 |
| Boost Clock | 4.4 GHz | 4.9 GHz+11% |
| Base Clock | 3.6 GHz+3% | 3.5 GHz |
| L3 Cache | 8 MB | 16 MB (total)+100% |
| L2 Cache | 512 kB (per core) | 1 MB (per core)+100% |
| Process | 7 nm | 4 nm-43% |
| Architecture | Renoir (2020−2023) | Hawk Point-U (Zen 4) (2023−2025) |
| PassMark | 20,180 | 20,274 |
| Cinebench R23 Multi | — | 10,675 |
| Geekbench 6 Single | — | 2,519 |
| Geekbench 6 Multi | — | 10,308 |
Memory & Platform
The Ryzen 7 4700G uses the AM4 socket (PCIe 4.0), while the Ryzen 5 8640U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 4700G versus LPDDR5x-7500 on the Ryzen 5 8640U — the Ryzen 5 8640U supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 8640U supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 4700G) vs 20 (Ryzen 5 8640U) — the Ryzen 7 4700G offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Ryzen 7 4700G | Ryzen 5 8640U |
|---|---|---|
| Socket | AM4 | FP8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | LPDDR5x-7500+25% |
| Max RAM Capacity | 128 GB | 256 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Neither processor supports overclocking. Only the Ryzen 5 8640U supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 4700G) vs AMD-V (SVM) (Ryzen 5 8640U). Both include integrated graphics — Radeon Graphics (8CU) (Ryzen 7 4700G) and Radeon 760M (Ryzen 5 8640U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 4700G targets Desktop, Ryzen 5 8640U targets Productivity. Direct competitor: Ryzen 5 8640U rivals Core i5-1335U.
| Feature | Ryzen 7 4700G | Ryzen 5 8640U |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon Graphics (8CU) | Radeon 760M |
| Unlocked | No | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | AMD-V (SVM) |
| Target Use | Desktop | Productivity |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Ryzen 7 4700G and Ryzen 5 8640U
