Core i7-9700K vs Core i5-12400
Core i7-9700K
Core i5-12400
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 Core i7-9700K
Performance Per Dollar Core i5-12400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-9700K | Core i5-12400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($200) | ✅ More affordable ($195) |
| Longevity | ✨ Modern (Coffee Lake-R (2018−2019) / 14 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core i7-9700K | Core i5-12400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+34%) |
| Upfront Cost | ⚠️ Higher cost ($200) | ✅ More affordable ($195) |
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 Core i7-9700K and Core i5-12400
Core i7-9700K
The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.
Core i5-12400
The Core i5-12400 is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 18,794 points. Launch price was $299.
Processing Power
The Core i7-9700K packs 8 cores / 8 threads, while the Core i5-12400 offers 6 cores / 12 threads — the Core i7-9700K has 2 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 4.4 GHz on the Core i5-12400 — a 10.8% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 2.5 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i5-12400 uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i5-12400's 18,794 — a 26.5% lead for the Core i5-12400. L3 cache: 12 MB (total) on the Core i7-9700K vs 18 MB (total) on the Core i5-12400.
| Feature | Core i7-9700K | Core i5-12400 |
|---|---|---|
| Cores / Threads | 8 / 8+33% | 6 / 12 |
| Boost Clock | 4.9 GHz+11% | 4.4 GHz |
| Base Clock | 3.6 GHz+44% | 2.5 GHz |
| L3 Cache | 12 MB (total) | 18 MB (total)+50% |
| L2 Cache | 256K (per core) | 1.25 MB (per core)+400% |
| Process | 14 nm | Intel 7 nm-50% |
| Architecture | Coffee Lake-R (2018−2019) | Alder Lake-S (2022) |
| PassMark | 14,397 | 18,794+31% |
| Cinebench R23 Multi | — | 12,400 |
| Geekbench 6 Single | — | 2,381 |
| Geekbench 6 Multi | — | 10,632 |
Memory & Platform
The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i5-12400 uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9700K versus DDR5-4800, DDR4-3200 on the Core i5-12400 — the Core i5-12400 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-9700K) vs 20 (Core i5-12400) — the Core i5-12400 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400).
| Feature | Core i7-9700K | Core i5-12400 |
|---|---|---|
| Socket | LGA1151 | LGA1700 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-2666 | DDR5-4800, DDR4-3200+25% |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 20+25% |
Advanced Features
Virtualization support: VT-x, VT-d (Core i7-9700K) vs VT-x, VT-d, EPT (Core i5-12400). Both include integrated graphics — UHD Graphics 630 (Core i7-9700K) and UHD Graphics 730 (Core i5-12400) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9700K targets Desktop, Core i5-12400 targets Gaming Performance/Value. Direct competitor: Core i5-12400 rivals Ryzen 5 5600.
| Feature | Core i7-9700K | Core i5-12400 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics 630 | UHD Graphics 730 |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | VT-x, VT-d, EPT |
| Target Use | Desktop | Gaming Performance/Value |
Value Analysis
The Core i7-9700K launched at $385 MSRP, while the Core i5-12400 debuted at $209. At current prices ($200 vs $195), the Core i5-12400 is $5 cheaper. In terms of value (PassMark points per dollar), the Core i7-9700K delivers 72.0 pts/$ vs 96.4 pts/$ for the Core i5-12400 — making the Core i5-12400 the 29% better value option.
| Feature | Core i7-9700K | Core i5-12400 |
|---|---|---|
| MSRP | $385 | $209-46% |
| Avg Price (30d) | $200 | $195-3% |
| Performance per Dollar | 72.0 | 96.4+34% |
| Release Date | 2018 | 2022 |
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