Core i7-1355U vs Core i7-10870H

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.

Core i7-1355U vs Core i7-10870H FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i7-1355U vs Core i7-10870H: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i7-1355U

2023

Why buy it

✅Better for gaming: +7.1% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 15W instead of 45W, a 30W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of BGA1440 and DDR4.

Trade-offs

❌No integrated graphics, while Core i7-10870H can still boot and troubleshoot without a discrete GPU.

Core i7-10870H

2020

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Core i7-1355U needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-1355U across 50 shared CPU benchmark tests.
❌Lower PassMark (14,087 vs 14,116).
❌Launch MSRP is still $417 MSRP, while Core i7-1355U mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 45W vs 15W.
❌Older platform position on BGA1440 with DDR4, while Core i7-1355U moves to FCBGA1744 and DDR5.

Quick Answers

So, is Core i7-1355U better than Core i7-10870H?

Yes. Core i7-1355U is the better all-around CPU here. It gives you a 7.1% average FPS lead across 50 shared CPU game tests in our data, 0.2% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-1355U is the better pick. According to our tests, it delivers 7.1% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i7-1355U is the stronger fit. You are getting 0.2% better PassMark, backed by 10 cores and 12 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core i7-1355U is the easy recommendation for a fresh desktop build. Core i7-1355U comes in at an unclear MSRP at unclear MSRP versus $417 MSRP, and it still gives you a 7.1% average FPS lead across 50 shared CPU game tests in our data. Core i7-10870H only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games, especially when the gap is already 7.1% in the shared gaming data.

Which one is more future-proof for 2026 and beyond?

Core i7-1355U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020), a healthier platform with FCBGA1744 and DDR5 instead of BGA1440, and more multi-core headroom with 10 cores / 12 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i7-1355U vs Core i7-10870H Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

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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)	256K (per core)+20380%
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

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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	—	No
PCIe Lanes	—	16

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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.