Ryzen 5 8640U vs Ryzen 7 PRO 4750G
Ryzen 5 8640U
Ryzen 7 PRO 4750G
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
Performance Per Dollar Ryzen 7 PRO 4750G
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 5 8640U | Ryzen 7 PRO 4750G |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($140) |
| Longevity | ✨ Modern (Hawk Point-U (Zen 4) (2023−2025) / 4 nm) | ✨ Modern (Renoir (2020−2023) / 7 nm) |
💎 Value Proposition
| Insight | Ryzen 5 8640U | Ryzen 7 PRO 4750G |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($140) |
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 5 8640U and Ryzen 7 PRO 4750G
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.
Ryzen 7 PRO 4750G
The Ryzen 7 PRO 4750G 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: 20,227 points. Launch price was $299.
Processing Power
The Ryzen 5 8640U packs 6 cores / 12 threads, while the Ryzen 7 PRO 4750G offers 8 cores / 16 threads — the Ryzen 7 PRO 4750G has 2 more cores. Boost clocks reach 4.9 GHz on the Ryzen 5 8640U versus 4.4 GHz on the Ryzen 7 PRO 4750G — a 10.8% clock advantage for the Ryzen 5 8640U (base: 3.5 GHz vs 3.6 GHz). The Ryzen 5 8640U uses the Hawk Point-U (Zen 4) (2023−2025) architecture (4 nm), while the Ryzen 7 PRO 4750G uses Renoir (2020−2023) (7 nm). In PassMark, the Ryzen 5 8640U scores 20,274 against the Ryzen 7 PRO 4750G's 20,227 — a 0.2% lead for the Ryzen 5 8640U. Cinebench R23 multi-core: 10,675 vs 12,814 (18.2% advantage for the Ryzen 7 PRO 4750G). Geekbench 6 single-core — the metric most relevant to gaming — records 2,519 vs 1,627, a 43% lead for the Ryzen 5 8640U that directly translates to higher frame rates. Multi-core Geekbench: 10,308 vs 7,556 (30.8% advantage for the Ryzen 5 8640U). L3 cache: 16 MB (total) on the Ryzen 5 8640U vs 8 MB on the Ryzen 7 PRO 4750G.
| Feature | Ryzen 5 8640U | Ryzen 7 PRO 4750G |
|---|---|---|
| Cores / Threads | 6 / 12 | 8 / 16+33% |
| Boost Clock | 4.9 GHz+11% | 4.4 GHz |
| Base Clock | 3.5 GHz | 3.6 GHz+3% |
| L3 Cache | 16 MB (total)+100% | 8 MB |
| L2 Cache | 1 MB (per core)+100% | 512 kB (per core) |
| Process | 4 nm-43% | 7 nm |
| Architecture | Hawk Point-U (Zen 4) (2023−2025) | Renoir (2020−2023) |
| PassMark | 20,274 | 20,227 |
| Cinebench R23 Multi | 10,675 | 12,814+20% |
| Geekbench 6 Single | 2,519+55% | 1,627 |
| Geekbench 6 Multi | 10,308+36% | 7,556 |
Memory & Platform
The Ryzen 5 8640U uses the FP8 socket (PCIe 4.0), while the Ryzen 7 PRO 4750G uses AM4 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-7500 on the Ryzen 5 8640U versus DDR4-3200 on the Ryzen 7 PRO 4750G — 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: 20 (Ryzen 5 8640U) vs 16 (Ryzen 7 PRO 4750G) — the Ryzen 5 8640U offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 5 8640U) and Socket AM4 (Ryzen 7 PRO 4750G).
| Feature | Ryzen 5 8640U | Ryzen 7 PRO 4750G |
|---|---|---|
| Socket | FP8 | AM4 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | LPDDR5x-7500+25% | DDR4-3200 |
| Max RAM Capacity | 256 GB+100% | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 20+25% | 16 |
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 (SVM) (Ryzen 5 8640U) vs AMD-V (Ryzen 7 PRO 4750G). Both include integrated graphics — Radeon 760M (Ryzen 5 8640U) and Radeon Vega 8 (Ryzen 7 PRO 4750G) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 5 8640U targets Productivity. Direct competitor: Ryzen 5 8640U rivals Core i5-1335U.
| Feature | Ryzen 5 8640U | Ryzen 7 PRO 4750G |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon 760M | Radeon Vega 8 |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | AMD-V (SVM) | AMD-V |
| Target Use | Productivity | — |
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