Celeron 5305U vs Core i7-9700K

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.

Celeron 5305U vs Core i7-9700K 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.

Celeron 5305U vs Core i7-9700K: Pros, Cons & Final Verdict

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

Celeron 5305U

2020

Why buy it

✅Draws 15W instead of 95W, a 80W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 50 shared CPU benchmark tests.
❌Lower PassMark (1,307 vs 14,397).
❌Smaller total L3 cache (2 MB vs 12 MB).

Core i7-9700K

2018

Why buy it

✅Better for gaming: +610.3% higher average FPS across 50 shared CPU benchmark tests.
✅+500% larger total L3 cache (12 MB vs 2 MB).
✅33.3% more PCIe lanes (16 vs 12) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $385 MSRP, while Celeron 5305U mostly shows up through inconsistent older-market listings.
❌533.3% higher power demand at 95W vs 15W.

Quick Answers

So, is Core i7-9700K better than Celeron 5305U?

Yes. Core i7-9700K is the better all-around CPU here. It gives you a 610.3% average FPS lead across 50 shared CPU game tests in our data and 1001.5% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-9700K is the better pick. According to our tests, it delivers 610.3% 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 i7-9700K is the stronger fit. You are getting 1001.5% better PassMark, backed by 8 cores and 8 threads. It also has the larger cache pool with 500% larger total L3 cache (12 MB vs 2 MB).

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

Core i7-9700K is the better buy right now. Core i7-9700K comes in at an unclear MSRP at $385 MSRP versus unclear MSRP, and it still gives you a 610.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (37.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 5305U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2018). That makes it the safer long-term bet.

Celeron 5305U vs Core i7-9700K Technical Specifications

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

Celeron 5305U

The Celeron 5305U is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 2 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 1,307 points. Launch price was $69.

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.

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Processing Power

The Celeron 5305U packs 2 cores / 2 threads, while the Core i7-9700K offers 8 cores / 8 threads — the Core i7-9700K has 6 more cores. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 4.9 GHz on the Core i7-9700K — a 72.2% clock advantage for the Core i7-9700K (base: 2.3 GHz vs 3.6 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Core i7-9700K uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Celeron 5305U scores 1,307 against the Core i7-9700K's 14,397 — a 166.7% lead for the Core i7-9700K. L3 cache: 2 MB on the Celeron 5305U vs 12 MB (total) on the Core i7-9700K.

Feature	Celeron 5305U	Core i7-9700K
Cores / Threads	2 / 2	8 / 8+300%
Boost Clock	2.3 GHz	4.9 GHz+113%
Base Clock	2.3 GHz	3.6 GHz+57%
L3 Cache	2 MB	12 MB (total)+500%
L2 Cache	—	256K (per core)
Process	14 nm	14 nm
Architecture	Comet Lake-U (2019−2020)	Coffee Lake-R (2018−2019)
PassMark	1,307	14,397+1002%
Geekbench 6 Single	480	—
Geekbench 6 Multi	865	—

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Memory & Platform

The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Core i7-9700K uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus DDR4-2666 on the Core i7-9700K — the Core i7-9700K supports 11.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9700K supports up to 128 GB of RAM compared to 64 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 16 (Core i7-9700K) — the Core i7-9700K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and Intel 300 series (Core i7-9700K).

Feature	Celeron 5305U	Core i7-9700K
Socket	FCBGA1528	LGA1151
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400	DDR4-2666+11%
Max RAM Capacity	64 GB	128 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	12	16+33%

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Advanced Features

Only the Core i7-9700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support VT-x, VT-d virtualization. Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5305U) and UHD Graphics 630 (Core i7-9700K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5305U targets Budget, Core i7-9700K targets Desktop. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U.

Feature	Celeron 5305U	Core i7-9700K
Integrated GPU	Yes	Yes
IGPU Model	UHD Graphics (Comet Lake)	UHD Graphics 630
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Budget	Desktop