Core i7-1355U vs Core i7-10870H
Core i7-1355U
Core i7-10870H
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 i7-1355U
Performance Per Dollar Core i7-10870H
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-1355U | Core i7-10870H |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($417) |
| Longevity | ✨ Modern (Raptor Lake-U (2023) / Intel 7 nm) | ✨ Modern (Comet Lake-H (2020) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-1355U | Core i7-10870H |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($417) |
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 i7-1355U and Core i7-10870H
Core i7-1355U
The Core i7-1355U is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-U (2023) architecture. It features 10 cores and 12 threads. Base frequency is 1.7 GHz, with boost up to 5 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR5-5200, DDR4-3200, LPDDR4x-4267. Passmark benchmark score: 14,116 points. Launch price was $469.
Core i7-10870H
The Core i7-10870H is manufactured by Intel. It was released in 17 September 2020 (5 years ago). It is based on the Comet Lake-H (2020) architecture. It features 8 cores and 16 threads. Base frequency is 2.2 GHz, with boost up to 4.8 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR4. Passmark benchmark score: 14,087 points. Launch price was $149.
Processing Power
The Core i7-1355U packs 10 cores / 12 threads, while the Core i7-10870H offers 8 cores / 16 threads — the Core i7-1355U has 2 more cores. Boost clocks reach 5 GHz on the Core i7-1355U versus 4.8 GHz on the Core i7-10870H — a 4.1% clock advantage for the Core i7-1355U (base: 1.7 GHz vs 2.2 GHz). The Core i7-1355U uses the Raptor Lake-U (2023) architecture (Intel 7 nm), while the Core i7-10870H uses Comet Lake-H (2020) (14 nm). In PassMark, the Core i7-1355U scores 14,116 against the Core i7-10870H's 14,087 — a 0.2% lead for the Core i7-1355U. Both processors carry 12 MB (total) of L3 cache.
| Feature | Core i7-1355U | Core i7-10870H |
|---|---|---|
| Cores / Threads | 10 / 12+25% | 8 / 16 |
| Boost Clock | 5 GHz+4% | 4.8 GHz |
| Base Clock | 1.7 GHz | 2.2 GHz+29% |
| L3 Cache | 12 MB (total) | 12 MB (total) |
| L2 Cache | 1.25 MB (per core)+400% | 256K (per core) |
| Process | Intel 7 nm-50% | 14 nm |
| Architecture | Raptor Lake-U (2023) | Comet Lake-H (2020) |
| PassMark | 14,116 | 14,087 |
| Cinebench R23 Multi | — | 9,594 |
| Geekbench 6 Single | — | 1,228 |
| Geekbench 6 Multi | — | 6,822 |
Memory & Platform
The Core i7-1355U uses the FCBGA1744 socket (PCIe 5.0), while the Core i7-10870H uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i7-1355U | Core i7-10870H |
|---|---|---|
| Socket | FCBGA1744 | BGA1440 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2933 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Core i7-1355U) / VT-x, VT-d, EPT (Core i7-10870H). The Core i7-10870H includes integrated graphics (UHD Graphics 630), while the Core i7-1355U requires a dedicated GPU. Primary use case: Core i7-10870H targets Gaming. Direct competitor: Core i7-10870H rivals Ryzen 7 4800H.
| Feature | Core i7-1355U | Core i7-10870H |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | UHD Graphics 630 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d, EPT |
| Target Use | — | Gaming |
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