
Ryzen 7 7840S vs Core i5-10400F

Ryzen 7 7840S

Core i5-10400F
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 7840S
Performance Per Dollar Core i5-10400F
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 7840S | Core i5-10400F |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($102) |
| Longevity | ✨ Modern (Phoenix-HS (Zen 4) (2023) / 4 nm) | ✨ Modern (Comet Lake (2020−2025) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 7 7840S | Core i5-10400F |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($102) |
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 7840S and Core i5-10400F

Ryzen 7 7840S
The Ryzen 7 7840S is manufactured by AMD. It was released in 5 January 2023 (2 years ago). It is based on the Phoenix-HS (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP7r2/FP8. Thermal design power (TDP): 8 MB + 16 MB. Memory support: DDR5. Passmark benchmark score: 23,290 points. Launch price was $299.

Core i5-10400F
The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.
Processing Power
The Ryzen 7 7840S packs 8 cores / 16 threads, while the Core i5-10400F offers 6 cores / 12 threads — the Ryzen 7 7840S has 2 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 7840S versus 4.3 GHz on the Core i5-10400F — a 17% clock advantage for the Ryzen 7 7840S (base: 3.8 GHz vs 2.9 GHz). The Ryzen 7 7840S uses the Phoenix-HS (Zen 4) (2023) architecture (4 nm), while the Core i5-10400F uses Comet Lake (2020−2025) (14 nm). In PassMark, the Ryzen 7 7840S scores 23,290 against the Core i5-10400F's 13,029 — a 56.5% lead for the Ryzen 7 7840S. Cinebench R23 multi-core: 13,500 vs 8,191 (49% advantage for the Ryzen 7 7840S). Geekbench 6 single-core — the metric most relevant to gaming — records 2,570 vs 1,454, a 55.5% lead for the Ryzen 7 7840S that directly translates to higher frame rates. Multi-core Geekbench: 13,535 vs 5,783 (80.3% advantage for the Ryzen 7 7840S). L3 cache: 16 MB on the Ryzen 7 7840S vs 12 MB (total) on the Core i5-10400F.
| Feature | Ryzen 7 7840S | Core i5-10400F |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 12 |
| Boost Clock | 5.1 GHz+19% | 4.3 GHz |
| Base Clock | 3.8 GHz+31% | 2.9 GHz |
| L3 Cache | 16 MB+33% | 12 MB (total) |
| L2 Cache | 8 MB+3100% | 256K (per core) |
| Process | 4 nm-71% | 14 nm |
| Architecture | Phoenix-HS (Zen 4) (2023) | Comet Lake (2020−2025) |
| PassMark | 23,290+79% | 13,029 |
| Cinebench R23 Multi | 13,500+65% | 8,191 |
| Geekbench 6 Single | 2,570+77% | 1,454 |
| Geekbench 6 Multi | 13,535+134% | 5,783 |
Memory & Platform
The Ryzen 7 7840S uses the FP7/FP7r2/FP8 socket (PCIe 4.0), while the Core i5-10400F uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600, LPDDR5x-7500 on the Ryzen 7 7840S versus DDR4-2666 on the Core i5-10400F — the Ryzen 7 7840S supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7840S 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 7 7840S) vs 16 (Core i5-10400F) — the Ryzen 7 7840S offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 7 7840S) and H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F).
| Feature | Ryzen 7 7840S | Core i5-10400F |
|---|---|---|
| Socket | FP7/FP7r2/FP8 | LGA1200 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR5-5600, LPDDR5x-7500+25% | DDR4-2666 |
| 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 7 7840S supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (SVM) (Ryzen 7 7840S) vs VT-x, VT-d (Core i5-10400F). The Ryzen 7 7840S includes integrated graphics (Radeon 780M), while the Core i5-10400F requires a dedicated GPU. Primary use case: Ryzen 7 7840S targets Gaming, Core i5-10400F targets Gaming. Direct competitor: Ryzen 7 7840S rivals Core i7-1360P; Core i5-10400F rivals Ryzen 5 3600.
| Feature | Ryzen 7 7840S | Core i5-10400F |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon 780M | — |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | AMD-V (SVM) | VT-x, VT-d |
| Target Use | Gaming | Gaming |
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