Core i7-8700B vs Core i5-10400
Core i7-8700B
Core i5-10400
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 i7-8700B
Performance Per Dollar Core i5-10400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-8700B | Core i5-10400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($139) | ⚠️ Higher cost ($175) |
| Longevity | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) | ✨ Modern (Comet Lake (2020−2025) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-8700B | Core i5-10400 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+24%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($139) | ⚠️ Higher cost ($175) |
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 i7-8700B and Core i5-10400
Core i7-8700B
The Core i7-8700B is manufactured by Intel. It was released in 3 April 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 6 cores and 12 threads. Base frequency is 3.2 GHz, with boost up to 4.6 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 11,795 points. Launch price was $303.
Core i5-10400
The Core i5-10400 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: DDR4-2666. Passmark benchmark score: 11,988 points. Launch price was $149.
Processing Power
Both the Core i7-8700B and Core i5-10400 share an identical 6-core/12-thread configuration. Boost clocks reach 4.6 GHz on the Core i7-8700B versus 4.3 GHz on the Core i5-10400 — a 6.7% clock advantage for the Core i7-8700B (base: 3.2 GHz vs 2.9 GHz). The Core i7-8700B uses the Coffee Lake (2017−2019) architecture (14 nm), while the Core i5-10400 uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i7-8700B scores 11,795 against the Core i5-10400's 11,988 — a 1.6% lead for the Core i5-10400. Both processors carry 12 MB (total) of L3 cache.
| Feature | Core i7-8700B | Core i5-10400 |
|---|---|---|
| Cores / Threads | 6 / 12 | 6 / 12 |
| Boost Clock | 4.6 GHz+7% | 4.3 GHz |
| Base Clock | 3.2 GHz+10% | 2.9 GHz |
| L3 Cache | 12 MB (total) | 12 MB (total) |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Coffee Lake (2017−2019) | Comet Lake (2020−2025) |
| PassMark | 11,795 | 11,988+2% |
| Cinebench R23 Multi | — | 8,313 |
| Geekbench 6 Single | — | 1,600 |
Memory & Platform
The Core i7-8700B uses the BGA1440 socket (PCIe 3.0), while the Core i5-10400 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. The Core i5-10400 supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes.
| Feature | Core i7-8700B | Core i5-10400 |
|---|---|---|
| Socket | BGA1440 | LGA1200 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2666 | DDR4-2666 |
| Max RAM Capacity | 64 GB | 128 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i7-8700B) vs VT-x, VT-d, EPT (Core i5-10400). Both include integrated graphics — UHD Graphics 630 (Core i7-8700B) and UHD Graphics 630 (Core i5-10400) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-8700B targets Mobile, Core i5-10400 targets Gaming. Direct competitor: Core i5-10400 rivals Ryzen 5 3600.
| Feature | Core i7-8700B | Core i5-10400 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics 630 | UHD Graphics 630 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d, EPT |
| Target Use | Mobile | Gaming |
Value Analysis
The Core i7-8700B launched at $303 MSRP, while the Core i5-10400 debuted at $182. At current prices ($139 vs $175), the Core i7-8700B is $36 cheaper. In terms of value (PassMark points per dollar), the Core i7-8700B delivers 84.9 pts/$ vs 68.5 pts/$ for the Core i5-10400 — making the Core i7-8700B the 21.3% better value option.
| Feature | Core i7-8700B | Core i5-10400 |
|---|---|---|
| MSRP | $303 | $182-40% |
| Avg Price (30d) | $139-21% | $175 |
| Performance per Dollar | 84.9+24% | 68.5 |
| Release Date | 2018 | 2020 |
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