Core i5-10400F vs Core i7-7800X
Core i5-10400F
Core i7-7800X
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 i5-10400F
Performance Per Dollar Core i7-7800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-10400F | Core i7-7800X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($102) | ⚠️ Higher cost ($254) |
| Longevity | ✨ Modern (Comet Lake (2020−2025) / 14 nm) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i5-10400F | Core i7-7800X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+150%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($102) | ⚠️ Higher cost ($254) |
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 i5-10400F and Core i7-7800X
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.
Core i7-7800X
The Core i7-7800X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4 GHz. L3 cache: 8.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2400. Passmark benchmark score: 12,963 points. Launch price was $383.
Processing Power
Both the Core i5-10400F and Core i7-7800X share an identical 6-core/12-thread configuration. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4 GHz on the Core i7-7800X — a 7.2% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 3.5 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Core i7-7800X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-10400F scores 13,029 against the Core i7-7800X's 12,963 — a 0.5% lead for the Core i5-10400F. Cinebench R23 multi-core: 8,191 vs 6,897 (17.2% advantage for the Core i5-10400F). Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 1,114, a 26.5% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 6,951 (18.3% advantage for the Core i7-7800X). L3 cache: 12 MB (total) on the Core i5-10400F vs 8.25 MB (total) on the Core i7-7800X.
| Feature | Core i5-10400F | Core i7-7800X |
|---|---|---|
| Cores / Threads | 6 / 12 | 6 / 12 |
| Boost Clock | 4.3 GHz+7% | 4 GHz |
| Base Clock | 2.9 GHz | 3.5 GHz+21% |
| L3 Cache | 12 MB (total)+45% | 8.25 MB (total) |
| L2 Cache | 256K (per core) | 1 MB (per core)+300% |
| Process | 14 nm | 14 nm |
| Architecture | Comet Lake (2020−2025) | Skylake (server) (2017−2018) |
| PassMark | 13,029 | 12,963 |
| Cinebench R23 Multi | 8,191+19% | 6,897 |
| Geekbench 6 Single | 1,454+31% | 1,114 |
| Geekbench 6 Multi | 5,783 | 6,951+20% |
Memory & Platform
The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Core i7-7800X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. Both support up to 128 GB of RAM. Memory channels: 2 (Core i5-10400F) vs 4 (Core i7-7800X). PCIe lanes: 16 (Core i5-10400F) vs 28 (Core i7-7800X) — the Core i7-7800X offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and X299 (Core i7-7800X).
| Feature | Core i5-10400F | Core i7-7800X |
|---|---|---|
| Socket | LGA1200 | LGA2066 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2666 | DDR4-2400 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 4+100% |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 28+75% |
Advanced Features
Only the Core i7-7800X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i5-10400F) vs Yes (Core i7-7800X). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.
| Feature | Core i5-10400F | Core i7-7800X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | Yes |
| Target Use | Gaming | — |
Value Analysis
The Core i5-10400F launched at $160 MSRP, while the Core i7-7800X debuted at $383. At current prices ($102 vs $254), the Core i5-10400F is $152 cheaper. In terms of value (PassMark points per dollar), the Core i5-10400F delivers 127.7 pts/$ vs 51.0 pts/$ for the Core i7-7800X — making the Core i5-10400F the 85.8% better value option.
| Feature | Core i5-10400F | Core i7-7800X |
|---|---|---|
| MSRP | $160-58% | $383 |
| Avg Price (30d) | $102-60% | $254 |
| Performance per Dollar | 127.7+150% | 51.0 |
| Release Date | 2020 | 2017 |
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