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 i7-9700K

2018

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 Ultra 7 255U needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core Ultra 7 255U across 5 shared CPU benchmark tests.
❌Lower PassMark (14,397 vs 17,834).
❌Launch MSRP is still $385 MSRP, while Core Ultra 7 255U mostly shows up through inconsistent older-market listings.
❌578.6% higher power demand at 95W vs 14W.
❌Older platform position on LGA1151 with DDR4, while Core Ultra 7 255U moves to FCBGA2049 and DDR5.

Core Ultra 7 255U

2025

Why buy it

✅Better for gaming: +16.9% higher average FPS across 5 shared CPU benchmark tests.
✅Draws 14W instead of 95W, a 81W reduction.
✅Newer platform on FCBGA2049 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Core i7-9700K

2018

Core Ultra 7 255U

2025

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 Ultra 7 255U needs a discrete GPU.

Why buy it

✅Better for gaming: +16.9% higher average FPS across 5 shared CPU benchmark tests.
✅Draws 14W instead of 95W, a 81W reduction.
✅Newer platform on FCBGA2049 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Core Ultra 7 255U across 5 shared CPU benchmark tests.
❌Lower PassMark (14,397 vs 17,834).
❌Launch MSRP is still $385 MSRP, while Core Ultra 7 255U mostly shows up through inconsistent older-market listings.
❌578.6% higher power demand at 95W vs 14W.
❌Older platform position on LGA1151 with DDR4, while Core Ultra 7 255U moves to FCBGA2049 and DDR5.

Trade-offs

❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core Ultra 7 255U better than Core i7-9700K?

Yes. Core Ultra 7 255U is the better overall CPU here. You are getting a 16.9% average FPS lead across 5 shared CPU game tests in our data, 23.9% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core Ultra 7 255U is the better pick here. According to our tests, it delivers 16.9% more average FPS across 5 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core Ultra 7 255U is the better fit. You are getting 23.9% better PassMark, backed by 12 cores and 14 threads.

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

Core Ultra 7 255U is the smarter buy by a wide margin for a fresh build. Core Ultra 7 255U is at an unclear MSRP at unclear MSRP versus $385 MSRP, and it gives you a 16.9% average FPS lead across 5 shared CPU game tests in our data. Core i7-9700K only looks stronger on raw value math because it is extremely cheap, but that is mostly used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (37.4 vs 0.0 PassMark/$), it really only makes sense as a very cheap stopgap or a niche existing-platform option for someone already on LGA1151.

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

Core Ultra 7 255U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2018), a healthier platform with FCBGA2049 and DDR5 instead of LGA1151, and more multi-core headroom with 12 cores / 14 threads instead of 8/8. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 i7-9700K Benchmark Check

Core Ultra 7 255U Benchmark Check

Path of Exile 2

Preset	Core i7-9700K	Core Ultra 7 255U
1080p
low	308 FPS	292 FPS
medium	278 FPS	256 FPS
high	231 FPS	216 FPS
ultra	182 FPS	187 FPS
1440p
low	270 FPS	243 FPS
medium	221 FPS	192 FPS
high	178 FPS	157 FPS
ultra	143 FPS	138 FPS
4K
low	170 FPS	168 FPS
medium	140 FPS	134 FPS
high	108 FPS	104 FPS
ultra	95 FPS	90 FPS

Open Core i7-9700K Open Core Ultra 7 255U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-9700K	Core Ultra 7 255U
1080p
low	360 FPS	446 FPS
medium	321 FPS	399 FPS
high	291 FPS	348 FPS
ultra	259 FPS	308 FPS
1440p
low	324 FPS	440 FPS
medium	282 FPS	367 FPS
high	258 FPS	322 FPS
ultra	225 FPS	276 FPS
4K
low	249 FPS	328 FPS
medium	221 FPS	285 FPS
high	208 FPS	265 FPS
ultra	179 FPS	228 FPS

Open Core i7-9700K Open Core Ultra 7 255U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-9700K	Core Ultra 7 255U
1080p
low	360 FPS	446 FPS
medium	360 FPS	446 FPS
high	360 FPS	446 FPS
ultra	360 FPS	446 FPS
1440p
low	360 FPS	446 FPS
medium	360 FPS	446 FPS
high	360 FPS	446 FPS
ultra	360 FPS	446 FPS
4K
low	360 FPS	446 FPS
medium	360 FPS	446 FPS
high	360 FPS	446 FPS
ultra	318 FPS	379 FPS

Open Core i7-9700K Open Core Ultra 7 255U

League of Legends

League of Legends

Valorant

Preset	Core i7-9700K	Core Ultra 7 255U
1080p
low	360 FPS	446 FPS
medium	360 FPS	446 FPS
high	360 FPS	446 FPS
ultra	360 FPS	446 FPS
1440p
low	360 FPS	446 FPS
medium	360 FPS	446 FPS
high	360 FPS	446 FPS
ultra	360 FPS	446 FPS
4K
low	360 FPS	446 FPS
medium	360 FPS	446 FPS
high	360 FPS	446 FPS
ultra	360 FPS	427 FPS

Open Core i7-9700K Open Core Ultra 7 255U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-9700K and Core Ultra 7 255U

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

Core Ultra 7 255U

The Core Ultra 7 255U is manufactured by Intel. It was released in 1 January 2025 (less than a year ago). It is based on the Arrow Lake-U (2025) architecture. It features 12 cores and 14 threads. Base frequency is 3.8 GHz, with boost up to 5.2 GHz. L3 cache: 12 MB. Built on 5 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): 14 MB + 12 MB. Memory support: DDR5. Passmark benchmark score: 17,834 points. Launch price was $299.

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Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core Ultra 7 255U offers 12 cores / 14 threads — the Core Ultra 7 255U has 4 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 5.2 GHz on the Core Ultra 7 255U — a 5.9% clock advantage for the Core Ultra 7 255U (base: 3.6 GHz vs 3.8 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core Ultra 7 255U uses Arrow Lake-U (2025) (5 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core Ultra 7 255U's 17,834 — a 21.3% lead for the Core Ultra 7 255U. L3 cache: 12 MB (total) on the Core i7-9700K vs 12 MB on the Core Ultra 7 255U.

Feature	Core i7-9700K	Core Ultra 7 255U
Cores / Threads	8 / 8	12 / 14+50%
Boost Clock	4.9 GHz	5.2 GHz+6%
Base Clock	3.6 GHz	3.8 GHz+6%
L3 Cache	12 MB (total)	12 MB
L2 Cache	256K (per core)	—
Process	14 nm	5 nm-64%
Architecture	Coffee Lake-R (2018−2019)	Arrow Lake-U (2025)
PassMark	14,397	17,834+24%

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Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core Ultra 7 255U uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i7-9700K	Core Ultra 7 255U
Socket	LGA1151	FCBGA2049
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i7-9700K) / not specified (Core Ultra 7 255U). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Core Ultra 7 255U requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.