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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i7-12700K

2021

Why buy it

✅Better for gaming: +3.7% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Launch MSRP is still $409 MSRP, while Core Ultra 7 155H mostly shows up through inconsistent older-market listings.
❌No boxed cooler included, unlike Core Ultra 7 155H.

Core Ultra 7 155H

2023

Why buy it

✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Laptop Integrated), unlike Core i7-12700K.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
❌Lower PassMark (24,705 vs 34,347).

Core i7-12700K

2021

Core Ultra 7 155H

2023

Why buy it

✅Better for gaming: +3.7% higher average FPS across 50 shared CPU benchmark tests.

Why buy it

✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Laptop Integrated), unlike Core i7-12700K.

Trade-offs

❌Launch MSRP is still $409 MSRP, while Core Ultra 7 155H mostly shows up through inconsistent older-market listings.
❌No boxed cooler included, unlike Core Ultra 7 155H.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
❌Lower PassMark (24,705 vs 34,347).

Quick Answers

So, is Core i7-12700K better than Core Ultra 7 155H?

Yes. Core i7-12700K is the better overall CPU here. You are getting a 3.7% average FPS lead across 50 shared CPU game tests in our data and 39% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i7-12700K is the better pick here. According to our tests, it delivers 3.7% 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 i7-12700K is the better fit. You are getting 39% better PassMark, backed by 12 cores and 20 threads.

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

Core i7-12700K is the smarter buy today. Core i7-12700K is at an unclear MSRP at $409 MSRP versus unclear MSRP, and it gives you a 3.7% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (84.0 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Core Ultra 7 155H is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021). That makes it the safer long-term pick.

Games Benchmarks

Paired with RTX 4090

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.

Core i7-12700K Benchmark Check

Core Ultra 7 155H Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Core Ultra 7 155H
1080p
low	314 FPS	308 FPS
medium	295 FPS	278 FPS
high	246 FPS	232 FPS
ultra	193 FPS	198 FPS
1440p
low	269 FPS	251 FPS
medium	225 FPS	201 FPS
high	182 FPS	163 FPS
ultra	145 FPS	143 FPS
4K
low	170 FPS	173 FPS
medium	142 FPS	139 FPS
high	109 FPS	107 FPS
ultra	96 FPS	93 FPS

Open Core i7-12700K Open Core Ultra 7 155H

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Core Ultra 7 155H
1080p
low	630 FPS	618 FPS
medium	533 FPS	532 FPS
high	450 FPS	434 FPS
ultra	410 FPS	389 FPS
1440p
low	536 FPS	550 FPS
medium	475 FPS	457 FPS
high	403 FPS	385 FPS
ultra	349 FPS	328 FPS
4K
low	312 FPS	340 FPS
medium	280 FPS	286 FPS
high	266 FPS	261 FPS
ultra	234 FPS	229 FPS

Open Core i7-12700K Open Core Ultra 7 155H

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Core Ultra 7 155H
1080p
low	797 FPS	618 FPS
medium	633 FPS	618 FPS
high	556 FPS	618 FPS
ultra	472 FPS	618 FPS
1440p
low	704 FPS	618 FPS
medium	565 FPS	618 FPS
high	490 FPS	618 FPS
ultra	422 FPS	543 FPS
4K
low	510 FPS	618 FPS
medium	425 FPS	531 FPS
high	381 FPS	475 FPS
ultra	321 FPS	402 FPS

Open Core i7-12700K Open Core Ultra 7 155H

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Core Ultra 7 155H
1080p
low	859 FPS	618 FPS
medium	802 FPS	618 FPS
high	699 FPS	618 FPS
ultra	628 FPS	618 FPS
1440p
low	760 FPS	618 FPS
medium	678 FPS	618 FPS
high	590 FPS	618 FPS
ultra	519 FPS	579 FPS
4K
low	535 FPS	606 FPS
medium	488 FPS	538 FPS
high	437 FPS	486 FPS
ultra	384 FPS	423 FPS

Open Core i7-12700K Open Core Ultra 7 155H

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Core Ultra 7 155H

Core i7-12700K

The Core i7-12700K is manufactured by Intel. It was released in 4 November 2021 (4 years ago). It is based on the Alder Lake, Golden Cove, Gracemont (2021) architecture. It features 12 cores and 20 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 25 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 34,347 points. Launch price was $409.

Core Ultra 7 155H

The Core Ultra 7 155H is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake-H (2023) architecture. It features 16 cores and 22 threads. Base frequency is 3.8 GHz, with boost up to 4.8 GHz. L3 cache: 24 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 24 MB. Memory support: DDR5. Passmark benchmark score: 24,705 points. Launch price was $503.

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Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Core Ultra 7 155H offers 16 cores / 22 threads — the Core Ultra 7 155H has 4 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.8 GHz on the Core Ultra 7 155H — a 4.1% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3.8 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Core Ultra 7 155H uses Meteor Lake-H (2023) (7 nm). In PassMark, the Core i7-12700K scores 34,347 against the Core Ultra 7 155H's 24,705 — a 32.7% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 24 MB (total) on the Core Ultra 7 155H.

Feature	Core i7-12700K	Core Ultra 7 155H
Cores / Threads	12 / 20	16 / 22+33%
Boost Clock	5 GHz+4%	4.8 GHz
Base Clock	3.6 GHz	3.8 GHz+6%
L3 Cache	25 MB (total)+4%	24 MB (total)
L2 Cache	1.25 MB (per core)	2 MB (per core)+60%
Process	10 nm	7 nm-30%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Meteor Lake-H (2023)
PassMark	34,347+39%	24,705
Cinebench R23 Multi	—	17,650
Geekbench 6 Single	—	2,384
Geekbench 6 Multi	—	12,433

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Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Core Ultra 7 155H uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Core i7-12700K versus LPDDR5x-7467, DDR5-5600 on the Core Ultra 7 155H — the Core i7-12700K supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-12700K supports up to 128 of RAM compared to 96 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i7-12700K) vs 28 (Core Ultra 7 155H) — the Core Ultra 7 155H offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z690,B660 (Core i7-12700K) and Meteor Lake SoC (Core Ultra 7 155H).

Feature	Core i7-12700K	Core Ultra 7 155H
Socket	LGA1700	FCBGA2049
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	4800+95900%	LPDDR5x-7467, DDR5-5600
Max RAM Capacity	128	96 GB+78643100%
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	20	28+40%

🔧

Advanced Features

Only the Core i7-12700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i7-12700K) vs VT-x, VT-d, EPT (Core Ultra 7 155H). Both include integrated graphics — Intel UHD Graphics 770 (Core i7-12700K) and Intel Arc Graphics (8 Xe-cores) (Core Ultra 7 155H) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core Ultra 7 155H targets Thin-and-light Performance / AI. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; Core Ultra 7 155H rivals Ryzen 7 8840HS.

Feature	Core i7-12700K	Core Ultra 7 155H
Integrated GPU	Yes	Yes
IGPU Model	Intel UHD Graphics 770	Intel Arc Graphics (8 Xe-cores)
Unlocked	Yes	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d, EPT
Target Use	—	Thin-and-light Performance / AI